S-8353/8354 Series
www.ablic.com

STEP-UP, PWM CONTROL or PWM / PFM
SWITCHABLEBUILT-IN TRANSISTOR SWITCHING REGULATOR© ABLIC Inc., 2002-2023

Rev.3.2_00

The S-8353/8354 Series is a CMOS step-up switching regulator which mainly consists of a reference voltage source, an
oscillation circuit, a power MOS FET, an error amplifier, a phase compensation circuit, a PWM control circuit (S-8353 Series)
and a PWM / PFM switching control circuit (S-8354 Series).
The S-8353/8354 Series can configure the step-up switching regulator with an external coil, capacitor, and diode. In
addition to the above features, the small package and low current consumption make the S-8353/8354 Series ideal for
portable equipment applications requiring high efficiency.
The S-8353 Series realizes low ripple, high efficiency, and excellent transient characteristics due to its PWM control circuit
whose duty ratio can be varied linearly from 0% to 83% (from 0% to 78% for 250 kHz models), an excellently designed error
amplifier, and phase compensation circuits.
The S-8354 Series features a PWM / PFM switching controller that can switch the operation to a PFM controller with a duty
ratio is 15% under a light load to prevent a decline in the efficiency due to the IC operating current.

 Features• Low voltage operation: Startup at 0.9 V min. (IOUT = 1 mA) guaranteed• Low current consumption : During operation 18.7 μA (3.3 V, 50 kHz, typ.)During shutdown: 0.5 μA (max.)• Duty ratio : Built-in PWM / PFM switching control circuit (S-8354 Series)
15 % to 83 % (30 kHz and 50 kHz models)
15 % to 78 % (250 kHz models)• External parts : Coil, capacitor, and diode• Output voltage : Selectable in 0.1 V steps between 1.5 V and 6.5 V (for VDD / VOUT separate types)
Selectable in 0.1 V steps between 2.0 V and 6.5 V (for other than VDD / VOUT separate types)• Output voltage accuracy : ±2.4%• Oscillation frequency : 30 kHz, 50 kHz, and 250 kHz selectable• Soft start function : 6 ms (50 kHz, typ.)• Lead-free, Sn 100%, halogen-free*1*1.

Refer to “ Product Name Structure” for details.

 Applications• Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs
• Power supplies for audio equipment such as portable CD / MD players• Constant voltage power supplies for cameras, VCRs, and communication devices• Power supplies for microcomputers

 Packages• SOT-23-3• SOT-23-5• SOT-89-3

1

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
 Block Diagrams(1) A, C and H Types (Without Shutdown Function)
CONT

VOUT
Oscillation circuit
PWMcontrol circuitor PWM / PFM
swiching control
circuit
Soft start built-in
reference power
supplyIC internal
power supply
+
−

Phase
compensation
circuitVSS

Figure 1(2) A and H Types (With Shutdown Function)
CONT

VOUT
Oscillation circuit
PWMcontrol circuitor PWM / PFM
swiching control
circuit
Soft start built-in
reference power
supplyIC internal
power supply
+
−

Phase
compensation
circuitVSS

ON / OFF

Figure 2(3) D and J Types (VDD / VOUT Separate Type)
CONT

VDD

VOUT

Oscillation circuit

IC internal
power supply+
PWMcontrol circuit−or PWM / PFM
swiching control
circuit
Soft start built-in
reference power
supplyPhase
compensation
circuitFigure 3

2

VSS

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
 Product Name Structure
The control system, product types, output voltage, and packages for the S-8353/8354 Series can be selected at theuser’s request. Please refer to the “3. Product Name” for the definition of the product name, “4. Package” regarding
the package drawings and “5. Product Name List” for the full product names.

1. Function List
(1) PWM Control Products
Table 1
Product Name

SwitchingFrequency[kHz]

Shutdown
Function

VDD / VOUT
Separate
Type

Package

Application

S-8353AxxMC
S-8353AxxMA
S-8353AxxUA
S-8353CxxMA
S-8353CxxUA

50
50
50
30
30

Yes
−
−
−
−

−
−
−
−
−

SOT-23-5
SOT-23-3
SOT-89-3
SOT-23-3
SOT-89-3

S-8353DxxMC

50

−

Yes

SOT-23-5

S-8353HxxMC

250

Yes

−

SOT-23-5

S-8353HxxMA

250

−

−

SOT-23-3

S-8353HxxUA

250

−

−

SOT-89-3

S-8353JxxMC

250

−

Yes

SOT-23-5

Applications requiring shutdown function
Applications not requiring shutdown function
Applications not requiring shutdown function
For pager
For pager
Applications requiring variable output voltage
with an external resistor
Applications requiring a shutdown function
and a thin coil
Applications not requiring a shutdown function
and requiring a thin coil
Applications not requiring a shutdown function
and requiring a thin coil
Applications requiring variable output voltage
with an external resistor and a thin coil

(2) PWM / PFM Switching Control Products
Table 2
Product Name

SwitchingFrequency[kHz]

Shutdown
Function

VDD / VOUT
Separate
Type

Package

Application

S-8354AxxMC
S-8354AxxMA
S-8354AxxUA
S-8354CxxMA

50
50
50
30

Yes
−
−
−

−
−
−
−

SOT-23-5
SOT-23-3
SOT-89-3
SOT-23-3

S-8354DxxMC

50

−

Yes

SOT-23-5

S-8354HxxMC

250

Yes

−

SOT-23-5

S-8354HxxMA

250

−

−

SOT-23-3

S-8354HxxUA

250

−

−

SOT-89-3

S-8354JxxMC

250

−

Yes

SOT-23-5

Applications requiring shutdown function
Applications not requiring shutdown function
Applications not requiring shutdown function
For pager
Applications requiring variable output voltage
with an external resistor
Applications requiring a shutdown function
and a thin coil
Applications not requiring a shutdown function
and requiring a thin coil
Applications not requiring a shutdown function
and requiring a thin coil
Applications requiring variable output voltage
with an external resistor and a thin coil

3

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
2. Package and Function List by Product Type
Table 3
Series Name

S-8353 Series,
S-8354 Series

Type
A (Normal product or with shutdown
function)A = 50 kHz
C (Normal product)
C = 30 kHz
D (VDD / VOUT separate type)
D = 50 kHz
H (Normal product or with shutdown
function)
H = 250 kHz
J (VDD / VOUT separate type)
J = 250 kHz

Package Name Shutdown Function VDD / VOUT Separate TypeYes / No
(Abbreviation)
Yes / NoMCYes
No
MA / UA
No
MA

No

No

MC

No

Yes

MC

Yes

MA / UA

No

MC

No

No
Yes

3. Product Name
(1) SOT-23-3
S-835 xx xx

MA - xxx

T1 U
Environmental code
U : Lead-free (Sn 100%), halogen-free
IC direction in tape specifications *1
Product code *2
Package code
MA : SOT-23-3
Output voltage
15 to 65
(e.g. When the output voltage is 1.5 V, it is expressed as 15.)
Product type
A : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5), fOSC = 50 kHz
C : Normal products,
fOSC = 30 kHz
fOSC = 50 kHz
D : VDD / VOUT separate type,
H : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5), fOSC = 250 kHz
J : VDD / VOUT separate type,fOSC = 250 kHz
Control system
3 : PWM control
4 : PWM / PFM switching control*1. Refer to the tape specifications.
*2. Refer to the Table 4 to Table 8 in the “5. Product Name List”.

4

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series(2) SOT-23-5, SOT-89-3
S-835 xx xx

xx - xxx

T2

x
Environmental code
U : Lead-free (Sn 100%), halogen-free
G : Lead-free (for details, please contact our sales representatives)
IC direction in tape specifications *1
Product code *2
Package code
MC : SOT-23-5
UA : SOT-89-3
Output voltage
15 to 65
(e.g. When the output voltage is 1.5 V, it is expressed as 15.)
Product type
A : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5), fOSC = 50 kHz
C : Normal products,
fOSC = 30 kHz
D : VDD / VOUT separate type,fOSC = 50 kHz
H : Normal products (SOT-23-3, SOT-89-3)
or With shutdown function products (SOT-23-5), fOSC = 250 kHz
J : VDD / VOUT separate type,fOSC = 250 kHz
Control system
3 : PWM control
4 : PWM / PFM switching control*1. Refer to the tape specifications.
*2. Refer to the Table 4 to Table 8 in the “5. Product Name List”.

4. Package
Package Name
SOT-23-3
SOT-23-5
SOT-89-3

Package
MP003-C-P-SD
MP005-A-P-SD
UP003-A-P-SD

Drawing Code
Tape
MP003-C-C-SD
MP005-A-C-SD
UP003-A-C-SD

Reel
MP003-Z-R-SD
MP005-A-R-SD
UP003-A-R-SD

5

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
5. Product Name List
(1) S-8353 Series
Table 4
Outputvoltage

S-8353AxxMC
Series

2.0 V
2.5 V
2.7 V
2.8 V
3.0 V
3.3 V
3.5 V
3.6 V
3.8 V
4.0 V
4.5 V
4.6 V
5.0 V
5.5 V

S-8353A20MC-IQFT2x
S-8353A25MC-IQKT2x
S-8353A27MC-IQMT2x
S-8353A28MC-IQNT2x
S-8353A30MC-IQPT2x
S-8353A33MC-IQST2x
S-8353A35MC-IQUT2x−
S-8353A38MC-IQXT2x−
S-8353A45MC-IRET2x−
S-8353A50MC-IRJT2x
S-8353A55MC-IROT2x

S-8353AxxMA
Series
−−−−S-8353A30MA-IQPT1U
S-8353A33MA-IQST1U
−
−
−
−
−
−
S-8353A50MA-IRJT1U−

S-8353AxxUA
Series
−−−−S-8353A30UA-IQPT2x
S-8353A33UA-IQST2x−
S-8353A36UA-IQVT2x
S-8353A38UA-IQXT2x
S-8353A40UA-IQZT2x−−
S-8353A50UA-IRJT2x
S-8353A55UA-IROT2x

S-8353CxxMA
Series
−−−−S-8353C30MA-ISPT1U
−
−
−
−
−
−
S-8353C46MA-ITFT1U−−

Table 5
Outputvoltage

S-8353CxxUA
Series
−−−S-8353C30UA-ISPT2x
−
−
−
−
−
−
−
−
−
−
−

S-8353DxxMC
Series

S-8353HxxMC
Series

S-8353HxxMA
Series
−−−S-8353H30MA-IWPT1U−−
S-8353H33MA-IWST1U
−
−
−
−
−
−
−
−

2.0 V
S-8353D20MC-IUFT2x
S-8353H20MC-IWFT2x−
2.6 V
S-8353H26MC-IWLT2x−
2.8 V
S-8353H28MC-IWNT2x
3.0 V
S-8353D30MC-IUPT2x
S-8353H30MC-IWPT2x−
3.1 V
S-8353H31MC-IWQT2x−
3.2 V
S-8353H32MC-IWRT2x−
3.3 V
S-8353H33MC-IWST2x−
3.5 V
S-8353H35MC-IWUT2x−
3.7 V
S-8353H37MC-IWWT2x−
3.8 V
S-8353H38MC-IWXT2x−
4.0 V
S-8353H40MC-IWZT2x−
4.5 V
S-8353H45MC-IXET2x
5.0 V
S-8353D50MC-IVJT2x
S-8353H50MC-IXJT2x−
6.0 V
S-8353H60MC-IXTT2x−
6.5 V
S-8353H65MC-IXYT2x
Remark 1. Please contact our sales representatives for products other than the above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.

6

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series

Table 6
Outputvoltage
1.8 V
2.0 V
2.1 V
2.5 V
3.0 V
3.3 V
3.6 V
5.0 V

S-8353HxxUA
Series
−−−−−S-8353H33UA-IWST2x
S-8353H36UA-IWVT2x
S-8353H50UA-IXJT2x

S-8353JxxMC
Series
S-8353J18MC-IYDT2x
S-8353J20MC-IYFT2x
S-8353J21MC-IYGT2x
S-8353J25MC-IYKT2x
S-8353J30MC-IYPT2x
S-8353J33MC-IYST2x−
S-8353J50MC-IZJT2x(2) S-8354 Series
Table 7
Outputvoltage
2.0 V
2.7 V
2.8 V
3.0 V
3.3 V
3.5 V
3.8 V
4.0 V
5.0 V

S-8354AxxMC
Series
−S-8354A27MC-JQMT2x−
S-8354A30MC-JQPT2x
S-8354A33MC-JQST2x−
S-8354A38MC-JQXT2x
S-8354A40MC-JQZT2x
S-8354A50MC-JRJT2x

S-8354AxxMA
Series
S-8354A20MA-JQFT1U
S-8354A27MA-JQMT1U
S-8354A28MA-JQNT1U
S-8354A30MA-JQPT1U
S-8354A33MA-JQST1U−−−
S-8354A50MA-JRJT1U

S-8354AxxUA
Series
−−S-8354A28UA-JQNT2x
S-8354A30UA-JQPT2x
S-8354A33UA-JQST2x
S-8354A35UA-JQUT2x−
S-8354A40UA-JQZT2x
S-8354A50UA-JRJT2x

S-8354CxxMA
Series
−−−S-8354C30MA-JSPT1U
−
−
−
−
−

Table 8Outputvoltage

S-8354DxxMC
Series
−S-8354D20MC-JUFT2x−−
S-8354D30MC-JUPT2x−
S-8354D33MC-JUST2x
−
−
−
−
−
−

S-8354HxxMC
S-8354HxxUA
S-8354JxxMC
SeriesSeriesSeries
−−
1.5 V
S-8354J15MC-JYAT2x
−
−
2.0 V
S-8354J20MC-JYFT2x
−
−
2.5 V
S-8354H25MC-JWKT2x−
2.7V
S-8354H27MC-JWMT2x S-8354H27UA-JWMT2x−
3.0 V
S-8354H30MC-JWPT2x
S-8354J30MC-JYPT2x
−
−
3.1 V
S-8354H31MC-JWQT2x−
3.3 V
S-8354H33MC-JWST2x
S-8354J33MC-JYST2x
−
−
3.5 V
S-8354H35MC-JWUT2x
−
−
4.0 V
S-8354H40MC-JWZT2x
−
−
4.2 V
S-8354H42MC-JXBT2x
−
−
4.5 V
S-8354H45MC-JXET2x
−
−
4.7 V
S-8354H47MC-JXGT2x−
5.0 V
S-8354H50MC-JXJT2x
S-8354J50MC-JZJT2xRemark 1. Please contact our sales representatives for products other than the above.
2. x: G or U
3. Please select products of environmental code = U for Sn 100%, halogen-free products.

7

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
 Pin Configurations
Table 9 A, C and H Types(Without shutdown function, VDD / VOUT non-separate type)SOT-23-3
Top view
1

Pin No.
12
32

Symbol
VOUT
VSS
CONT

Description
Output voltage pin and IC power supply pin
GND pin
External inductor connection pin

3

Figure 4
Table 10 A and H Types(With shutdown function, VDD / VOUT non-separate type)SOT-23-5
Top view
4

5

1

2

3

Figure 5

Pin No.

SymbolDescription

Shutdown pin
1“H”: Normal operation (Step-up operating)ON / OFF“L”: Step-up stopped (Entire circuit stopped)
2
VOUT
Output voltage pin and IC power supply pin
3
NC*1
No connection
4
VSS
GND pin5
CONT
External inductor connection pin*1. The NC pin indicates electrically open.
Table 11 D and J Types(Without shutdown function, VDD / VOUT separate type)
Pin No.
SymbolDescription
1
VOUT
Output voltage pin
2
VDD
IC power supply pin
3
NC*1
No connection
4
VSS
GND pin5
CONT
External inductor connection pin*1. The NC pin indicates electrically open.

SOT-89-3
Top view

Table 12 A and H Types(Without shutdown function, VDD / VOUT non-separate type)
Pin No.
1
2
3

1

2

Figure 683

Symbol
VSS
VOUT
CONT

Description
GND pin
Output voltage pin and IC power supply pin
External inductor connection pin

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
 Absolute Maximum Ratings
Table 13
(Ta = 25°C unless otherwise specified)
Item

SymbolVOUT pin voltage

VDD pin voltage*2

VDD
VCONT
ICONT

CONT pin voltage
CONT pin current
SOT-23-3
SOT-23-5

PD

SOT-89-3
Operating ambient temperature
Topr
Storage temperature
Tstg*1. With shutdown function*2. For VDD / VOUT separate type
*3. When mounted on board[Mounted board](1) Board size :114.3 mm × 76.2 mm × t1.6 mm(2) Board name :JEDEC STANDARD51-7
Caution

VSS − 0.3 to VSS + 12

V

VSS − 0.3 to VSS + 12
VSS − 0.3 to VSS + 12300
150 (When not mounted on board)
430*3
250 (When not mounted on board)
600*3
500 (When not mounted on board)
1000*3−40 to + 85
−40 to + 125

V
V
mA
mW
mW
mW
mW
mW
mW
°C
°C

The absolute maximum ratings are rated values exceeding which the product could suffer physicaldamage. These values must therefore not be exceeded under any conditions.

When mounted on board(2)

When not mounted on board
600

1000

Power dissipation (PD) [mW]

1200
Power dissipation (PD) [mW]

(1)

Unit
V

VOUT
VON / OFFON / OFF pin voltage*1

Power dissipation

Absolute maximum rating
VSS − 0.3 to VSS + 12

SOT-89-3

800

SOT-23-5

600

SOT-23-3

400
200
0

0

50

100

150

Ambient temperature (Ta) [°C]500

SOT-89-3

400

SOT-23-5

300

SOT-23-3

200
100
0

0

50

100

150

Ambient temperature (Ta) [°C]

Figure 7 Power Dissipation of Packages

9

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
 Electrical Characteristics(1) 50 kHz Product (A and D Types)
Table 14
Item

SymbolCondition

Output voltage

VOUT

−

Input voltage
Operation start voltage
Oscillation start voltage

VIN
VST1
VST2

Operation holding voltage

VHLD−
IOUT = 1 mA
No external parts, Voltage applied to VOUT
IOUT = 1 mA, Judged by decreasing VIN
voltage gradually
S-835xx15 to 19
S-835xx20 to 29
S-835xx30 to 39
VOUT = VOUT(S) × 0.95
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
S-835xx15 to 19
S-835xx20 to 29
S-835xx30 to 39
VOUT = VOUT(S) + 0.5 V
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65

Current consumption 1

ISS1

Current consumption 2

ISS2

Current consumption during
shutdown(With shutdown function)

ISSS

Switching current

Switching transistor leakage
current
Line regulation
Load regulation
Output voltage temperature
coefficient
Oscillation frequency
Maximum duty ratio
PWM / PFM switching duty
ratio (For S-8354 Series)

VON / OFF = 0 V
S-835xx15 to 19
S-835xx20 to 24
S-835xx25 to 29
S-835xx30 to 39
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65

−

−

V

2

−
−
−
−
−
−
−
−
−
−
−
−

10.8
13.3
18.7
24.7
31.0
37.8
4.8
5.0
5.1
5.3
5.5
5.7

18.0
22.2
31.1
41.1
51.6
63.0
9.5
9.9
10.2
10.6
10.9
11.3

μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA

1
1
1
1
1
1
1
1
1
1
1
1

−

−

0.5

μA

1

80
103
125
144
176
200
215

128
165
200
231
282
320
344

−
−
−
−
−
−
−

mA
mA
mA
mA
mA
mA
mA

1
1
1
1
1
1
1

VCONT = 0.4 V

ISWQ

VCONT = VOUT = 10 V

−

−

0.5

μA

1

ΔVOUT1ΔVOUT2ΔVOUT
ΔTa • VOUT

VIN = VOUT(S) × 0.4 to × 0.6
IOUT = 10 μA to VOUT(S) / 250 × 1.25

−
−

30
30

60
60

mV
mV

2
2

Ta = −40°C to +85°C

−

±50

−

ppm / °C

2

fOSC
MaxDuty

VOUT = VOUT(S) × 0.95
VOUT = VOUT(S) × 0.95

42.5
75

50
83

57.5
90

kHz
%

1
1

PFMDuty

VIN = VOUT(S) − 0.1 V, No-load

10

15

24

%

1

VSH
VSL1
VSL2

0.75
−
−

−
−
−

−
0.3
0.2

V
V
V

1
1
1

− 0.1

−

0.1

μA

1

− 0.1

−

0.1

μA

1

3.0
−

6.0
85

12.0
−

ms
%

2
2

ON / OFF pin input current(With shutdown function)

ISH
ISL

VON / OFF = 0 V

Soft start time
Efficiency

tSS
EFFI

10

0.7

ISW

Measured oscillation at CONT pin
At VOUT≥1.5 V
Judged oscillation stop at
CONT pin
At VOUT<1.5 V
VON / OFF = VOUT(S) × 0.95

ON / OFF pin input voltage(With shutdown function)(Ta = 25°C unless otherwise specified)
Measurement
Min.
Typ.
Max.
Unit
circuit
VOUT(S) VOUT(S) VOUT(S)V
2
× 0.976
× 1.024
−
−
10
V
2
−
−
0.9
V
2
−
−
0.8
V
1

−
−

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
External parts
Coil:
CDRH6D28-101 of Sumida Corporation
Diode:
MA2Z748 (Shottky type) of Matsushita Electric Industrial Co., Ltd.
Capacitor: F93 (16 V, 22 μF tantalum type) of Nichicon Corporation
VIN = VOUT(S) × 0.6 applied, IOUT = VOUT(S) / 250 Ω
ON / OFF pin is connected to VOUT
With shutdown function :For VDD / VOUT separate type : VDD pin is connected to VOUT pin
Remark

1. VOUT(S) specified above is the set output voltage value, and VOUT is the typical value of the actual output
voltage.
2. VDD / VOUT separate type
A step-up operation is performed from VDD = 0.8 V. However, 1.8 V≤VDD≤10 V is recommended stabilizing
the output voltage and oscillation frequency. (VDD≥1.8 V must be applied for products with a set value of lessthan 1.9 V.)

11STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00(2) 30 kHz Product (C Type)
Table 15

(Ta = 25°C unless otherwise specified)
Item

SymbolCondition

Output voltage

VOUT

−

Input voltage
Operation start voltage
Oscillation start voltage

VIN
VST1
VST2

Operation holding voltage

VHLD−
IOUT = 1 mA
No external parts, Voltage applied to VOUT
IOUT = 1 mA, Judged by decreasing VIN
voltage gradually
S-835xx20 to 29
S-835xx30 to 39
VOUT = VOUT(S) × 0.95
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
S-835xx20 to 29
S-835xx30 to 39
VOUT = VOUT(S) + 0.5 V
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
S-835xx20 to 24
S-835xx25 to 29
S-835xx30 to 39
VCONT = 0.4 V
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65

Current consumption 1

ISS1

Current consumption 2

ISS2

Switching current

ISW

Min.

Typ.

Max.

VOUT(S) VOUT(S) VOUT(S)× 0.976
× 1.024
−
−
10
−
−
0.9
−
−
0.8

Unit

Measurement
circuit

V

2

V
V
V

2
2
1

0.7

−

−

V

2

−
−
−
−
−
−
−
−
−
−
52
62
72
88
100
108

9.8
13.1
16.8
20.7
24.8
4.5
4.7
4.9
5.1
5.2
83
100
115
141
160
172

16.4
21.9
28.0
34.5
41.4
9.0
9.4
9.7
10.1
10.4
−
−
−
−
−
−

μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
mA
mA
mA
mA
mA
mA

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

−

0.5

μA

1

30
30

60
60

mV
mV

2
2

±50

−

ppm / °C

2

30
83

35
90

kHz
%

1
1

15

24

%

1

6.0
84

12.0
−

ms
%

2
2

Switching transistor leakage−
ISWQ
VCONT = VOUT = 10 V
current
ΔVOUT1
VIN = VOUT(S) × 0.4 to × 0.6−
Line regulation
ΔVOUT2IOUT = 10 μA to VOUT(S) / 250 × 1.25−
Load regulation
ΔVOUT
Output voltage temperature−
Ta = −40°C to +85°C
ΔTa • VOUT
coefficient
VOUT = VOUT(S) × 0.95
Oscillation frequency
fOSC
25
VOUT = VOUT(S) × 0.95
Maximum duty ratio
MaxDuty75
PWM / PFM switching duty
VIN = VOUT(S) − 0.1 V, No-load
PFMDuty10
ratio (For S-8354 Series)−
Soft start time
tSS
3.0
−
−
Efficiency
EFFI
External parts
Coil:
CDRH6D28-101 of Sumida Corporation
Diode:
MA2Z748 (Shottky type) of Matsushita Electric Industrial Co., Ltd.
Capacitor: F93 (16 V, 22 μF tantalum type) of Nichicon Corporation
VIN = VOUT(S) × 0.6 applied, IOUT = VOUT(S) / 250 Ω

Remark VOUT(S) specified above is the set output voltage value, and VOUT is the typical value of the actual output voltage.

12

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series(3) 250 kHz Product (H and J Types)
Table 16

(Ta = 25°C unless otherwise specified)
Item

SymbolConditionMin.

Output voltage

VOUT

−

Input voltage
Operation start voltage
Oscillation start voltage

VIN
VST1
VST2

Operation holding voltage

VHLD−
IOUT = 1 mA
No external parts, Voltage applied to VOUT
IOUT = 1 mA, Judged by decreasing VIN
voltage gradually
S-835xx15 to 19
S-835xx20 to 29
S-835xx30 to 39
VOUT = VOUT(S) × 0.95
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65
S-835xx15 to 19
S-835xx20 to 29
S-835xx30 to 39
VOUT = VOUT(S) + 0.5 V
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65

Current consumption 1

ISS1

Current consumption 2

ISS2

Current consumption during
shutdown(With shutdown function)

ISSS

Switching current

Switching transistor leakage
current
Line regulation
Load regulation
Output voltage temperature
coefficient
Oscillation frequency
Maximum duty ratio
PWM / PFM switching duty
ratio (For S-8354 Series)

VON / OFF = 0 V
S-835xx15 to 19
S-835xx20 to 24
S-835xx25 to 29
S-835xx30 to 39
S-835xx40 to 49
S-835xx50 to 59
S-835xx60 to 65

Max.

VOUT(S) VOUT(S) VOUT(S)× 0.976
× 1.024
−
−
10
−
−
0.9
−
−
0.8

Unit

Measurement
circuit

V

2

V
V
V

2
2
1

0.7

−

−

V

2

−
−
−
−
−
−
−
−
−
−
−
−

36.5
48.3
74.3
103.1
134.1
167.0
9.1
9.3
9.5
9.7
9.8
10.0

60.8
80.5
123.8
171.9
223.5
278.4
18.2
18.6
18.9
19.3
19.6
19.9

μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA

1
1
1
1
1
1
1
1
1
1
1
1

−

−

0.5

μA

1

80
103
125
144
176
200
215

128
165
200
231
282
320
344

−
−
−
−
−
−
−

mA
mA
mA
mA
mA
mA
mA

1
1
1
1
1
1
1

ISW

VCONT = 0.4 V

ISWQ

VCONT = VOUT = 10 V

−

−

0.5

μA

1

ΔVOUT1ΔVOUT2ΔVOUT
ΔTa • VOUT

VIN = VOUT(S) × 0.4 to × 0.6
IOUT = 10 μA to VOUT(S) / 250 × 1.25

−
−

30
30

60
60

mV
mV

2
2

Ta = −40°C to +85°C

−

±50

−

ppm / °C

2

fOSC
MaxDuty

VOUT = VOUT(S) × 0.95
VOUT = VOUT(S) × 0.95

212.5
70

250
78

287.5
85

kHz
%

1
1

PFMDuty

VIN = VOUT(S) − 0.1 V, No-load

10

15

24

%

1

VSH
VSL1
VSL2

0.75
−
−

−
−
−

−
0.3
0.2

V
V
V

1
1
1

− 0.1

−

0.1

μA

1

− 0.1

−

0.1

μA

1

1.8
−

3.6
85

7.2
−

ms
%

2
2

ON / OFF pin input current(With shutdown function)

ISH

Measured oscillation at CONT pin
At VOUT≥1.5 V
Judged oscillation stop at
CONT pin
At VOUT<1.5 V
VON / OFF = VOUT(S) × 0.95

ISL

VON / OFF = 0 V

Soft start time
Efficiency

tSS
EFFI

ON / OFF pin input voltage(With shutdown function)

Typ.

−
−

13

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
External parts
Coil:
CDRH6D28-220 of Sumida Corporation
Diode:
MA2Z748 (Shottky type) of Matsushita Electric Industrial Co., Ltd.
Capacitor: F93 (16 V, 22 μF tantalum type) of Nichicon Corporation
VIN = VOUT(S) × 0.6 applied, IOUT = VOUT(S) / 250 Ω
ON / OFF pin is connected to VOUT
With shutdown function :For VDD / VOUT separate type : VDD pin is connected to VOUT pin
Remark14

1. VOUT(S) specified above is the set output voltage value, and VOUT is the typical value of the actual output
voltage.
2. VDD / VOUT separate type
A step-up operation is performed from VDD = 0.8 V. However, 1.8 V≤VDD≤10 V is recommended stabilizing
the output voltage and oscillation frequency. (VDD≥1.8 V must be applied for products with a set value of lessthan 1.9 V.)

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
 Measurement Circuits
1.

300 Ω
Oscilloscope

CONT
*1

VOUT

VSS

VDD*2

ON / OFFA

0.1 μF+−

Figure 8
2.
+
−

CONT

VOUT
*2
VDD

VSS ON / OFF

+
−

V

*1

0.1 μF

Figure 9*1. With shutdown function*2. For VDD / VOUT separate type15

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
 Operation
1. Switching Control Types
1. 1 PWM Control (S-8353 Series)

The S-8353 Series is a DC-DC converter using a pulse width modulation method (PWM) and features low current
consumption. In conventional PFM DC-DC converters, pulses are skipped when the output load current is low,causing a fluctuation in the ripple frequency of the output voltage, resulting in an increase in the ripple voltage.
In the S-8353 Series, the switching frequency does not change, although the pulse width changes from 0% to83% (78% for H and J type) corresponding to each load current. The ripple voltage generated from switching
can thus be removed easily using a filter because the switching frequency is constant.
1. 2 PWM / PFM Switching Control (S-8354 Series)

The S-8354 Series is a DC-DC converter that automatically switches between a pulse width modulation method(PWM) and a pulse frequency modulation method (PFM), depending on the load current, and features low current
consumption.
The S-8354 Series operates under PWM control with the pulse width duty changing from 15% to 83% (78% for H
and J type) in a high output load current area. On the other hand, the S-8354 Series operates under PFM control
with the pulse width duty fixed at 15% in a low output load current area, and pulses are skipped according to theload current. The oscillation circuit thus oscillates intermittently so that the resultant lower self current
consumption can prevent a reduction in the efficiency at a low load current. The switching point from PWM
control to PFM control depends on the external devices (coil, diode, etc.), input voltage, and output voltage. This
series are an especially efficient DC-DC converter at an output current around 100 μA.

2. Soft Start Function
For this IC, a built-in soft start circuit controls the rush current and overshoot of the output voltage when the poweris turned on or the ON / OFF pin is set to “H” level.

16

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series

3.

ON / OFF Pin (Shutdown Pin) (SOT-23-5 Package Products of A and H Types)
ON / OFF pin stops or starts step-up operation.
Setting the ON / OFF pin to the “L” level stops operation of all the internal circuits and reduces the current
consumption significantly.
DO NOT use the ON / OFF pin in a floating state because it has the structure shown in Figure 10 and is not pulled
up or pulled down internally. DO NOT apply a voltage of between 0.3 V and 0.75 V to the ON / OFF pin because
applying such a voltage increases the current consumption. If the ON / OFF pin is not used, connect it to the VOUTpin.
The ON / OFF pin does not have hysteresis.
Table 17

ON / OFF pin

CR oscillation circuit

Output voltage“H”
Operation
Fixed≅VIN*1“L”
Stop*1. Voltage obtained by subtracting the voltage drop due to the DC resistance of the inductor and the diode forward
voltage from VIN.
VOUT

ON / OFF

VSS

Figure 10

ON/ OFF Pin Structure

17

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
4. Operation
The following are the basic equations [(1) through (7)] of the step-up switching regulator. (Refer to Figure 11.)
L

CONT

D

VIN
VOUT
M1

+

EXT
VSS

−

CL

Figure 11 Step-Up Switching Regulator Circuit for Basic Equation

Voltage at CONT pin at the moment M1 is turned ON (VA) *1 :VA = VS *2*1. Current flowing through L (IL) is zero.
*2. Non-saturated voltage of M1.
The change in IL over time :dIL VL VIN − VS
=
=
dt
L
L
Integration of equation (2) (IL) : V − VS 
IL =  IN•tLIL flows while M1 is ON (tON). The time of tON is determined by the oscillation frequency of OSC.
The peak current (IPK) after tON : V − VS 
IPK =  IN
 • t ONLThe energy stored in L is represented by 1/2 • L (IPK)2.
When M1 is turned OFF (tOFF), the energy stored in L is emitted through a diode to the output capacitor.
Then, the reverse voltage (VL) is generated :VL = (VOUT + VD*1) − VIN*1. Diode forward voltage
The voltage at CONT pin rises only by VOUT+VD.
The change in the current (IL) flowing through the diode into VOUT during tOFF :dIL VL VOUT + VD − VIN
=
=
dt
L
L

18

(1)

(2)

(3)

(4)

(5)

(6)

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series

Integration of the equation (6) is as follows :+ VD − VIN 
VIL = IPK −  OUT
•t
L



(7)

During tON, the energy is stored in L and is not transmitted to VOUT. When receiving the output current (IOUT) from
VOUT, the energy of the capacitor (CL) is consumed. As a result, the pin voltage of CL is reduced, and goes to thelowest level after M1 is turned ON (tON). When M1 is turned OFF, the energy stored in L is transmitted through thediode to CL, and the voltage of CL rises rapidly. VOUT is a time function, and therefore indicates the maximum value(ripple voltage (VP−P) ) when the current flowing through into VOUT and load current (IOUT) match.
Next, the ripple voltage is determined as follows.
IOUT vs. t1 (time) from when M1 is turned OFF (after tON) to when VOUT reaches the maximum level :+ VD − VIN 
V
IOUT = IPK −  OUT(8) • t1
L




L

∴ t1 = (IPK − IOUT ) • 
 VOUT + VD − VIN (9)When M1 is turned OFF (tOFF), IL = 0 (when the energy of the inductor is completely transmitted). Based on equation (7) : t OFF
L

=
(10)
V

 OUT + VD − VIN  IPK
When substituting equation (10) for equation (9) :It1 = t OFF −  OUT  • t OFF
 IPK (11)

Electric charge ΔQ1 which is charged in CL during t1 :
t1
t1
t1
V
+ VD − VIN
V+ VD − VIN 1 2
ΔQ1 =IL dt = IPK •dt − OUT•
tdt = IPK • t1 − OUT
• t1
0
0
0
L
L
2







When substituting equation (12) for equation (9) :1
I +I
ΔQ1 = IPK − (IPK − IOUT ) • t1 = PK OUT • t1
2
2
A rise in voltage (VP−P) due to ΔQ 1 :ΔQ1
1  IPK + IOUT 
VP −P ==• • t1
CL
CL 
2


(12)

(13)

(14)

When taking into consideration IOUT to be consumed during t1 and the Equivalent Series Resistance (RESR) of CL :1  IPK + IOUT 
I
•t
ΔQ1
I +I

VP −P =(15)=•
 • t1 +  PK OUT  • RESR − OUT 1
CL
CL 
2
2
C



L
When substituting equation (11) for equation (15) :(I − I)2 t
I +I
VP −P = PK OUT • OFF +  PK OUT  • RESR
2IPK
CL 
2


(16)

Therefore to reduce the ripple voltage, it is important that the capacitor connected to the output pin has a large
capacity and a small RESR.

19

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
 External Parts Selection
The relationship between the major characteristics of the step-up circuit and the characteristic parameters of the external
parts is shown in Figure 12.

For larger output current ?

For higher efficiency ?
At PFM control

At PWM control

Smaller inductance

For smaller ripple voltage ?

Larger inductance

Smaller direct current resistance of inductor

Larger output capacitance

Larger output capacitance

Figure 12 Relationship between Major Characteristics of Step-up Circuit and External Parts

1. Inductor
The inductance value (L value) has a strong influence on the maximum output current (IOUT) and efficiency (η).
The peak current (IPK) increases by decreasing L value and the stability of the circuit improves and IOUT increases. If L
value is decreased, the efficiency falls causing a decline in the current drive capacity for the switching transistor, and
IOUT decreases.
The loss of IPK by the switching transistor decreases by increasing L and the efficiency becomes maximum at a
certain L value. Further increasing L value decreases the efficiency due to the loss of the direct current resistance ofthe coil. IOUT also decreases.
A higher oscillation frequency allows selection of a lower L value, making the coil smaller.
The recommended inductances are a 47 μH to 220 μH for A, C, and D types, a 10 μH to 47 μH for H and J types.
Be careful of the allowable inductor current when choosing an inductor. Exceeding the allowable current of theinductor causes magnetic saturation, much lower efficiency and destruction of the IC chip due to a large current.
Choose an inductor so that IPK does not exceed the allowable current. IPK in discontinuous mode is calculated by thefollowing equation:IPK =2 IOUT ( VOUT + VD − VIN )(A)
fOSC • L

fosc = oscillation frequency, VD ≅ 0.4 V.

2. Diode
Use an external diode that meets the following requirements :• Low forward voltage : VF < 0.3 V• High switching speed : 50 ns max.
• Reverse voltage :VOUT + VF or more
• Current rate :IPK or more

20

(17)

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
3. Capacitor (CIN, CL)A capacitor on the input side (CIN) improves the efficiency by reducing the power impedance and stabilizing the input
current. Select a CIN value according to the impedance of the power supply used.
A capacitor on the output side (CL) is used for smoothing the output voltage. For step-up types, the output voltage
flows intermittently to the load current, so step-up types need a larger capacitance than step-down types. Therefore,
select an appropriate capacitor in accordance with the ripple voltage, which increases in case of a higher output
voltage or a higher load current. The capacitor value should be 10 μF or more.
Select an appropriate capacitor the equivalent series resistance (RESR) for stable output voltage. The stable voltage
range in this IC depends on the RESR. Although the inductance value (L value) is also a factor, an RESR of 30 to
500 mΩ maximizes the characteristics. However, the best RESR value may depend on the L value, the capacitance,
the wiring, and the applications (output load). Therefore, fully evaluate the RESR under the actual operating
conditions to determine the best value.
Refer to the “1. Example of Ceramic Capacitor Application” (Figure 16) in the “ Application Circuit” for thecircuit example using a ceramic capacitor and the external resistance of the capacitor (RESR).

4. VDD / VOUT Separate Type (D and J Types)
The D and J types provides separate internal circuit power supply (VDD pin) and output voltage setting pin (VOUTpin) in the IC, making it ideal for the following applications.
(1) When changing the output voltage with external resistance.
(2) When outputting a high voltage within the operating voltage (10 V).
Choose the products in the Table 18 according to the applications (1) or (2) above.
Table 18

Output voltage (VCC)
S-835xx18
S-835xx50
Connection to VDD pin

1.8 V ≤ VCC < 5 V
Yes−
VIN or VCC

5 V ≤ VCC ≤ 10 V
−
Yes
VIN

Cautions 1. This IC starts a step-up operation at VDD = 0.8 V, but set 1.8 ≤ VDD ≤ 10 V to stabilize the output
voltage and frequency of the oscillator. (Input a voltage of 1.8 V or more at the VDD pin for all
products with a setting less than 1.9 V.) An input voltage of 1.8 V or more at the VDD pin allows
connection of the VDD pin to either the input voltage VIN pin or output VOUT pin.
2. Choose external resistors RA and RB so as to not affect the output voltage, considering that
there is impedance between the VOUT pin and VSS pin in the IC chip. The internal resistance
between the VOUT pin and VSS pin is as follows :(1) S-835xx18 : 2.1 MΩ to 14.8 MΩ
(2) S-835xx20 : 1.4 MΩ to 14.8 MΩ
(3) S-835xx30 : 1.4 MΩ to 14.2 MΩ
(4) S-835xx50 : 1.4 MΩ to 12.1 MΩ
3. Attach a capacitor (CC) in parallel to the RA resistance when an unstable event such as
oscillation of the output voltage occurs. Calculate CC using the following equation :1CC [ F ] =2 • π • R A • 20 kHz

21

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
 Standard Circuits(1) S-8353AxxMA / UA, S-8353CxxMA, S-8353HxxMA/UA, S-8354AxxMA/UA, S-8354CxxMA, S-8354HxxMA / UA
SD
L

CONT

VOUT
Oscillation circuit

VIN

CIN
+

PWM control circuitor PWM / PFM
switching control
circuit−

Soft start built-in
reference power
supplyIC internal
power
supply

+

CL

−
Phase
compensating
circuit+−

VSS

Remark The power supply for the IC chip is from the VOUT pin.
Figure 13(2) S-8353AxxMC, S-8353HxxMC, S-8354AxxMC, S-8354HxxMC
SD
L

VOUT

CONT
Oscillation circuit

VIN

CIN
+

PWM control circuitor PWM / PFM
switching control
circuit−

Soft start built-in
reference power
supplyIC internal
power
supply−Phase
compensating
circuitON / OFF

Remark The power supply for the IC chip is from the VOUT pin.
Figure 14

22

+

CL

VSS

+
−

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series(3) S-8353DxxMC, S-8353JxxMC, S-8354DxxMC, S-8354JxxMC
SD
L

VDD

CONT

Oscillation circuit
VIN

CIN
+
−

PWM control circuitor PWM / PFM
switching control
circuit
Soft start built-in
reference power
supplyIC internal
power
supply

CC
RA
+

+
−

Phase
compensating
circuit

−

VOUT

CL

RB
VSS

Remark The power supply for the IC chip is from the VOUT pin.
Figure 15
CautionThe Above connection diagram will not guarantee successful operation.
evaluation using the actual application to set the constant.

Perform through23

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
 Precautions• Mount external capacitors, diodes, and coils as close as possible to the IC. Especially, mounting the output capacitor(capacitor between VDD pin and VSS pin for VDD / VOUT separate type) in the power supply line of the IC close to the IC
can enable stable output characteristics. If it is impossible, it is recommended to mount and wire a ceramic capacitorof around 0.1 μF close to the IC.
• Characteristics ripple voltage and spike noise occur in IC containing switching regulators. Moreover rush current flows
at the time of a power supply injection. Because these largely depend on the coil, the capacitor and impedance ofpower supply used, fully check them using an actually mounted model.
• Make sure that the dissipation of the switching transistor (especially at a high temperature) does not exceed theallowable power dissipation of the package.
• The performance of this IC varies depending on the design of the PCB patterns, peripheral circuits and external parts.
Thoroughly test all settings with your device. The recommended external part should be used wherever possible, but
if this is not possible for some reason, contact our sales representatives.
• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
protection circuit.
• ABLIC Inc. claims no responsibility for any and all disputes arising out of or in connection with any infringement of the
products including this IC upon patents owned a third party.

24

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
 Application Circuits
1. Using Ceramic Capacitor Example
When using small RESR parts such as ceramic capacitors for the output capacitance, mount a resistor (R1)
corresponding to the RESR in series with the ceramic capacitor (CL) as shown in Figure 16.
R1 differs depending on L value, the capacitance, the wiring, and the application (output load).
The following example shows a circuit using R1 = 100 mΩ, output voltage = 3.3 V, output load = 100 mA and its
characteristics.

VIN

R1

CONT

CIN

VOUT

SD

L

VOUT
VSS

CL

Figure 16 Using Ceramic Capacitor Circuit Example
Table 19

IC

L Type Name

SD Type Name

S-8353A33

CDRH5D28-101

MA2Z748

CautionCL(Ceramic capacitor)
10 μF × 2

R1
100 mΩThe Above connection diagram and constant will not guarantee successful operation.
through evaluation using the actual application to set the constant.

Perform

25

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
2. Output Characteristics of The Using Ceramic Capacitor Circuit Example
The data of the step-up characteristics (a) Output current (IOUT) vs. Efficiency (η) characteristics, (b) Output current(IOUT) vs. Output voltage (VOUT) characteristics, (c) Output Current (IOUT) vs. Ripple voltage (Vr) under conditions inTable 19 is shown below.

100

3.40

80

3.35
VOUT [V](b) Output current (IOUT) vs. Output voltage (VOUT)

η [%](a) Output current (IOUT) vs. Efficiency (η)

6040

VIN = 0.9 V
VIN = 1.8 V
VIN = 2.7 V

20
0
0.01

0.1

1
10
IOUT [mA]

100

3.25

1000

(c) Output current (IOUT) vs. Ripple voltage (Vr)140
120
Vr [mV]

100
80

VIN = 0.9 V
VIN = 1.8 V
VIN = 2.7 V

60
40
20
0
0.01

26

0.1

1
10
IOUT [mA]

100

3.30

1000

3.20
0.01

VIN = 0.9 V
VIN = 1.8 V
VIN = 2.7 V
0.1

1
10
IOUT [mA]

100

1000

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
 Characteristics (Typical Data)
1. Example of Major Temperature characteristics (Ta = −40°C to +85°C, VOUT = 3.3 V)(1) Current Consumption 1 (ISS1) vs. Temperature (Ta)
50

40

40
ISS1 [μA]

ISS1 [μA]

fOSC = 50 kHz
50

30
20

30
20
10

10
0
−40 −20

fOSC = 250 kHz

020 40 60
Ta [°C]0−40 −2080 100020 40 60
Ta [°C]80 100(2) Current Consumption 2 (ISS2) vs. Temperature (Ta)fOSC = 250 kHz
108

8ISS2 [μA]

ISS2 [μA]

fOSC = 50 kHz
10

6
4
2
0
−40 −206
4
20

20 40 60
Ta [°C]0−40 −2080 100020 40Ta [°C]60

80 100(3) Current Consumption at Shutdown (ISSS) vs. Temperature (Ta)fOSC = 250 kHz

1.0

ISSS [μA]

0.8
0.6
0.4
0.2
0
−40 −20020 40
Ta [°C]60

80 100(4) Switching Current (ISW) vs. Temperature (Ta)(5) Switching Transistor Leakage Current (ISWQ) vs. Temperature (Ta)fOSC = 250 kHz

500

0.8
ISWQ [μA]

ISW [mA]

400
300
200
100
0
−40 −20

fOSC = 250 kHz

1.0

0.6
0.4
0.2

0

20 40
Ta [°C]60

80 1000−40 −20020 40
Ta [°C]60

80 10027

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00(6) Oscillation Frequency (fOSC) vs. Temperature (Ta)fOSC = 50 kHz

fOSC = 250 kHz
350

60

300

fOSC [kHz]fOSC [kHz]

70

50
40
30
−40 −20020 40
Ta [°C]

250
200
150
−40 −20 060 80 10020 40
Ta [°C]

60 80 100

(7) Maximum Duty Ratio (MaxDuty) vs. Temperature (Ta)fOSC = 50 kHz

90
80
70
60
50
−40 −200

20 40 60
Ta [°C]

90
80
70
60
50
−40 −2080 100(8) PWM / PFM Switching Duty Ratio (PFMDuty) vs.
Temperature (Ta) (S-8354 Series)

fOSC = 250 kHz

100
MaxDuty [%]MaxDuty [%]100

0fOSC = 250 kHz

fOSC = 250 kHz

VSH [V]PFMDuty [%]

0.8

15
10
0

20 40 60
Ta [°C]0.4

0−40 −2080 100

1.0

0.8

0.8
VSL2 [V]

1.0

0.6
0.4
0.2

0

20 40
Ta [°C]60

80 100(11) ON / OFF Pin Input Voltage “L” 2 (VSL2) vs.
Temperatuer (Ta)fOSC = 250 kHz

VSL1 [V]0.6

0.2(10) ON / OFF Pin Input Voltage “L” 1 (VSL1) vs.
Temperature (Ta) (S-8354 Series)

28

80 1001.0200−40 −2060(9) ON / OFF Pin Input Voltage “H” (VSH) vs.
Temperature (Ta)25

5−40 −2020 40
Ta [°C]fOSC = 250 kHz

0.6
0.4
0.2

0

20 40
Ta [°C]60

80 1000−40 −20020 40
Ta [°C]60

80 100STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series(12) Soft Start Time (tSS) vs. Temperature (Ta)fOSC = 250 kHz
8

6

6tSS [ms]tSS [ms]

fOSC = 50 kHz
8

4
2

4
2

0
−40 −20020 40
Ta [°C]0−40 −2060 80 100020 40Ta [°C]60

80 100(13) Operation Start Voltage (VST1) vs. Temperature (Ta) (14) Oscillation Start Voltage (VST2) vs. Temperature (Ta)fOSC = 250 kHz

fOSC = 250 kHz
1.2

1.0

1.0

0.8

0.8

VST2 [V]

VST1 [V]

1.2

0.6
0.4

0.4
0.2

0.2
0
−40 −20

0.6

0

20 40
Ta [°C]60

0−40 −2080 100020 40Ta [°C]

60 80 100(15) Output Voltage (VOUT) vs. Temperature (Ta)fOSC = 50 kHz

3.40

3.35
VOUT [V]

VOUT [V]

3.35
3.30

3.30
3.25

3.25
3.20
−40 −20

fOSC = 250 kHz

3.40

0

20 40
Ta [°C]

60 80 100

3.20
−40 −20020 40
Ta [°C]60

80 10029

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
2. Examples of Major Power Supply Dependence Characteristics (Ta = 25°C)(1) Current Consumption 1 (ISS1) vs. Power Supply Voltage (VDD),
Current Consumption 2 (ISS2) vs. Power Supply Voltage(VDD)

VOUT = 3.3 V, fOSC = 50 kHz

40
30
20
10
0

0

2

4
6
VDD [V]8

VOUT = 3.3 V, fOSC = 250 kHz

100
ISS1, ISS2 [μA]

ISS1, ISS2 [μA]

50

80
60
40
20
0

10

0

2

4

6
VDD [V]810(2) Oscillation Frequency (fOSC) vs. Power Supply Voltage (VDD)

fOSC = 50 kHz

70

250
fOSC [kHz]fOSC [kHz]

60
50
40
30

fOSC = 250 kHz

300

200
150
100

0

2

4
6
VDD [V]

8

10

0

2

4

6
VDD [V]810(3) Switching Current (ISW) vs. Power Supply Voltage (VDD)
500

ISW [mA]

400
300
200
100
0

0

2

4
6
VDD [V]810(4) Output Voltage (VOUT) vs. Power Supply Voltage (VDD) (VOUT = 3.3 V, VIN = 1.98 V, IOUT = 13.2 mA, VDD Separate Type)fOSC = 50 kHz

3.4

fOSC = 250 kHz
3.4
3.3
VOUT [V]

VOUT [V]

3.3
3.2
3.1
3.0

30

3.2
3.1

0

2

4
6
VDD [V]

8

10

3.0

0

2

4
6
VDD [V]

8

10

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series
3. Output Waveforms (VIN = 1.98 V)(1) S-8353A33

IOUT = 10 mA
Output voltage[0.01 V / div]

IOUT = 50 mA

Output voltage[0.01 V / div]

CONT voltage[1 V / div]

CONT voltage[1 V / div]

t [10 μs / div]

t [10 μs / div]

IOUT = 100 mA

Output voltage[0.02 V / div]

CONT voltage[1 V / div]
t [10 μs / div]

(2) S-8354H33

IOUT = 100 μA

IOUT = 10 mA

Output voltage[0.01 V / div]

Output voltage[0.01 V / div]

CONT voltage[1 V / div]

CONT voltage[1 V / div]
t [2 μs / div]

t [2 μs / div]

IOUT = 50 mA

IOUT = 100 mA

Output voltage[0.02 V / div]

Output voltage[0.02 V / div]

CONT voltage[1 V / div]

CONT voltage[1 V / div]

t [2 μs / div]

t [2 μs / div]

31

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
4. Examples of Transient Response Characteristics (Ta = 25°C, 250 kHz, S-8354H33)(1) Power-On (VIN : 0 V → 2.0 V)

2
0

0

4
2

2
4
2

0

t [1 ms / div]

VOUT [V]

VIN [V]IOUT = 50 mA

VOUT [V]

VIN [V]IOUT = 1 mA

0t [1 ms / div]

(2) ON/ OFF Pin Response ( VON / OFF : 0 V → 2.0 V, VIN = 2 V)

2
0

4
2

2
4

0

2

0

t [1 ms / div]

VOUT [V]

VON/OFF [V]

IOUT = 50 mA

VOUT [V]

VON/OFF [V]

IOUT = 1 mA

0t [1 ms / div]

(3) Load Fluctuations (VIN = 1.98 V)

100 μA → 50 mA
50 mA

IOUT

IOUT

50 mA

50 mA → 100 μA

100 μA
VOUT[0.05 V / div]

100 μA

VOUT[0.05 V / div]

t [200 μs / div]

t [5 ms / div]

(4) Input Voltage Fluctuations (IOUT = 50 mA)

VIN = 2.64 V → 1.98 V
VIN [V]

VIN [V]

VIN = 1.98 V → 2.64 V
2.64
1.98

2.64
1.98

VOUT
[0.04 V / div]
VOUT
[0.02 V / div]
t [100 μs / div]

32

t [100 μs / div]

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series Reference Data
Reference data is provided to determine specific external components. Therefore, the following data shows thecharacteristics of the recommended external components selected for various applications.

1. External Parts for Reference Data
Table 20

Efficiency vs. Output Current Characteristics and Output Voltage vs. Output Current Characteristics forExternal Parts

Condition

Product Name

1
2
3
4
5
6
7
8

S-8353H50MC
S-8353H50MC
S-8353H50MC
S-8354A50MC
S-8354A50MC
S-8353A50MC
S-8353A50MC
S-8353A33MC

Oscillation
frequency
250 kHz250 kHz250 kHz
50 kHz
50 kHz
50 kHz
50 kHz
50 kHzOutput voltage Control system
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
3.3 V

PWM
PWM
PWM
PWM / PFM
PWM / PFM
PWM
PWM
PWM

Inductor

Diode

Output capacitor

F93 (16 V, 47 μF)
CDRH8D28-220
F93 (6.3 V, 22 μF)
CDRH5D28-220
F92 (6.3 V, 47 μF)
CXLP120-220
F93 (6.3 V, 22 μF)
CDRH8D28-101
MA2Z748F92 (6.3 V, 47 μF)
CXLP120-470
F93 (6.3 V, 22 μF)
CDRH8D28-101
F92 (6.3 V, 47 μF)
CXLP120-470
F93 (6.3 V, 22 μF)
CDRH8D28-101

The properties of the external parts are shown below.
Table 21 Properties of External Parts

Component

Product name

Manufacturer

CDRH8D28-220
CDRH8D28-101
Inductor

Sumida Corporation

CDRH5D28-220
CXLP120-220
CXLP120-470

Sumitomo Special Metals Co.,
Ltd.

Diode

MA2Z748

Matsushita Electric IndustrialCo., Ltd.

Capacitor

F93 (16 V, 47 μF)
F93 (6.3 V, 22 μF)
F92 (6.3 V, 47 μF)

Nichicon Corporation

Characteristics
22 μH, DCR*1 = 95 mΩ, IMAX.*2 = 1.6 A,
Component height = 3.0 mm
100 μH, DCR*1 = 410 mΩ, IMAX.*2 = 0.75 A,
Component height = 3.0 mm
22 μH, DCR*1 = 122 mΩ, IMAX.*2 = 0.9 A,
Component height = 3.0 mm
22 μH, DCR*1 = 590 mΩ, IMAX.*2 = 0.55 A,
Component height = 1.2 mm
47 μH, DCR*1 = 950 mΩ, IMAX.*2 = 0.45 A,
Component height = 1.2 mm
VF*3 = 0.4 V, IF*4 = 0.3 A−*1. Direct current resistance*2. Maximum allowable current*3. Forward voltage*4. Forward current
CautionThe values shown in the characteristics column of Table 21 above are based on the materials provided byeach manufacture. However, consider the characteristics of the original materials when using the above
products.

33

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
2.

Output Current (IOUT) vs. Efficiency (η) Characteristics, Output Current (IOUT) vs. Output Voltage(VOUT) Characteristics
The following shows the actual (a) Output current (IOUT) vs. Efficiency (η) characteristics and (b) Output current (IOUT)
vs. Output voltage (VOUT) characteristics under the conditions of No. 1 to 8 in Table 20.
Condition 1 S-8353H50MC(a) Output current (IOUT) vs. Efficiency (η)100(b) Output current (IOUT) vs. Output voltage (VOUT)
5.2
5.1

60
VIN = 2 V
VIN = 3 V
VIN = 4 V

40
20
0.01

0.1

1
10
IOUT [mA]100

VOUT [V]

η [%]

80

5.0
4.9
4.8
4.7
0.01

1000

VIN = 2 V
VIN = 3 V
VIN = 4 V
0.1

1
10
IOUT [mA]

100

1000

Condition 2 S-8353H50MC

80

5.1

60
VIN = 2 V
VIN = 3 V
VIN = 4 V

40
20
0.01

0.1

1
10
IOUT [mA]100

VOUT [V](b) Output current (IOUT) vs. Output voltage (VOUT)
5.2

η [%]

(a) Output current (IOUT) vs. Efficiency (η)
100

5.0
4.9
4.8
4.7
0.01

1000

VIN = 2 V
VIN = 3 V
VIN = 4 V
0.1

1
10
IOUT [mA]

100

1000

Condition 3 S-8353H50MC

80

5.1

60
VIN=2 V
VIN=3 V
VIN=4 V

40
20
0.01

0.1

1
10
IOUT [mA]100

VOUT [V](b) Output current (IOUT) vs. Output voltage (VOUT)
5.2

η [%]

(a) Output current (IOUT) vs. Efficiency (η)
100

5.0
4.9
4.8
4.7
0.01

1000

VIN = 2 V
VIN = 3 V
VIN = 4 V
0.1

1
10
IOUT [mA]

100

1000

Condition 4 S-8354A50MC

80

5.1

60
VIN = 2 V
VIN = 3 V
VIN = 4 V

40
20
0.01

34

0.1

1
10
IOUT [mA]

100

1000

VOUT [V](b) Output current (IOUT) vs. Output voltage (VOUT)
5.2

η [%]

(a) Output current (IOUT) vs. Efficiency (η)
100

5.0
4.9
4.8
4.7
0.01

VIN = 2 V
VIN = 3 V
VIN = 4 V
0.1

1
10
IOUT [mA]

100

1000

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.2_00
S-8353/8354 Series

Condition 5 S-8354A50MC

80

5.1
VOUT [V](b) Output current (IOUT) vs. Output voltage (VOUT)
5.2

η [%]

(a) Output current (IOUT) vs. Efficiency (η)
10060
VIN = 2 V
VIN = 3 V
VIN = 4 V

40
20
0.01

0.1

1
10
IOUT [mA]

5.0
4.9
4.8

100

4.7
0.01

1000

VIN = 2 V
VIN = 3 V
VIN = 4 V
0.1

1
10
IOUT [mA]

100

1000

Condition 6 S-8353A50MC

80

5.1

60
VIN = 2 V
VIN = 3 V
VIN = 4 V

40
20
0.01

0.1

1
10
IOUT [mA]100

VOUT [V](b) Output current (IOUT) vs. Output voltage (VOUT)
5.2

η [%]

(a) Output current (IOUT) vs. Efficiency (η)
100

5.0
4.9
4.8
4.7
0.01

1000

VIN = 2 V
VIN = 3 V
VIN = 4 V
0.1

1
10
IOUT [mA]

100

1000

Condition 7 S-8353A50MC

80

5.1
VOUT [V](b) Output current (IOUT) vs. Output voltage (VOUT)
5.2

η [%]

(a) Output current (IOUT) vs. Efficiency (η)
10060
VIN = 2 V
VIN = 3 V
VIN = 4 V

40
20
0.01

0.1

1
10
IOUT [mA]

5.0
4.9
4.8

100

4.7
0.01

1000

VIN = 2 V
VIN = 3 V
VIN = 4 V
0.1

1
10
IOUT [mA]

100

1000

Condition 8 S-8353A33MC

80

3.4

60
VIN = 0.9 V
VIN = 1.8 V
VIN = 2.7 V

40
20
0.01

0.1

1
10
IOUT [mA]

100

1000

VOUT [V](b) Output current (IOUT) vs. Output voltage (VOUT)
3.5

η [%]

(a) Output current (IOUT) vs. Efficiency (η)
100

3.3
3.2
3.1
3.0
0.01

VIN = 0.9 V
VIN = 1.8 V
VIN = 2.7 V
0.1

1
10
IOUT [mA]

100

1000

35

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Rev.3.2_00
3. Output Current (IOUT) vs. Ripple Voltage (Vr) Characteristics
The following shows the actual Output current (IOUT) vs. Ripple voltage (Vr) characteristics and (b) Output current(IOUT) vs. Output voltage (VOUT) characteristics under the conditions of No. 1 to 8 in Table 20.
Condition 1 S-8353H50MC

Vr [mV]

80
60

100

VIN = 2 V
VIN = 3 V
VIN = 4 V80
Vr [mV]100

Condition 2 S-8353H50MC

40

0.1

1
10
IOUT [mA]

100

120

200

VIN = 2 V
VIN = 3 V
VIN = 4 V

160

80
40
0
0.01

0.1

1

10
IOUT [mA]

100

100

1000

100

1000

100

1000

100

1000

VIN = 2 V
VIN = 3 V
VIN = 4 V

80

0.1

1
10
IOUT [mA]

Condition 6 S-8353A50MC
200

VIN = 2 V
VIN = 3 V
VIN = 4 V

160
Vr [mV]Vr [mV]120

VIN = 2 V
VIN = 3 V
VIN = 4 V

80
40

0.1

1
10
IOUT [mA]

100

0
0.01

1000

0.1

1
10
IOUT [mA]

Condition 8 S-8353A33MC
200

VIN = 2 V
VIN = 3 V
VIN = 4 V

160
Vr [mV]Vr [mV]

36

120

0
0.01

1000

Condition 7 S-8353A50MC
280
240
200
160
120
80
40
0
0.01

1
10
IOUT [mA]

40

Condition 5 S-8354A50MC
280
240
200
160
120
80
40
0
0.01

0.1

Condition 4 S-8354A50MC

Vr [mV]Vr [mV]

160

0
0.01

1000

Condition 3 S-8353H50MC
200

40
20

20
0
0.01

60

VIN = 2 V
VIN = 3 V
VIN = 4 V

120

VIN = 2 V
VIN = 3 V
VIN = 4 V

80
40

0.1

1
10
IOUT [mA]

100

1000

0
0.01

0.1

1
10
IOUT [mA]2.9±0.2
1

2

3

+0.1

0.16 -0.06

0.95±0.1
1.9±0.2

0.4±0.1

No. MP003-C-P-SD-1.1

TITLE

SOT233-C-PKG Dimensions

No.

MP003-C-P-SD-1.1

ANGLE
UNIT

mm

ABLIC Inc.

ø1.5

+0.1
-0

4.0±0.1

2.0±0.1

0.23±0.1+0.25

ø1.0 -0

4.0±0.1

1.4±0.2

3.2±0.2

1

2

3

Feed direction

No. MP003-C-C-SD-2.0

TITLE

SOT233-C-Carrier Tape

No.

MP003-C-C-SD-2.0

ANGLE
UNIT

mm

ABLIC Inc.

+1.0

9.0 - 0.0
11.4±1.0

Enlarged drawing in the central part
ø13±0.2

No. MP003-Z-R-SD-2.0

TITLE

SOT233-C-Reel

No.

MP003-Z-R-SD-2.0

ANGLE

QTY.

UNIT

mm

ABLIC Inc.

3,000

2.9±0.2
1.9±0.2
4

5

1

2

+0.1

0.16 -0.06

30.95±0.1
0.4±0.1

No. MP005-A-P-SD-1.3

TITLE

SOT235-A-PKG Dimensions

No.

MP005-A-P-SD-1.3

ANGLE
UNIT

mm

ABLIC Inc.

4.0±0.1(10 pitches:40.0±0.2)+0.1

ø1.5 -0+0.2

ø1.0 -0

2.0±0.05

0.25±0.1

4.0±0.1

1.4±0.2

3.2±0.2

3 2 1

4

5

Feed direction

No. MP005-A-C-SD-2.1

TITLE

SOT235-A-Carrier Tape

No.

MP005-A-C-SD-2.1

ANGLE
UNIT

mm

ABLIC Inc.

+1.0

9.0 - 0.0
11.4±1.0

Enlarged drawing in the central part

ø13±0.2

(60°)

(60°)

No. MP005-A-R-SD-2.0

TITLE

SOT235-A-Reel

No.

MP005-A-R-SD-2.0

ANGLE

QTY.

UNIT

mm

ABLIC Inc.

3,000

4.5±0.1

1.5±0.1

1.6±0.2

45°

1

2

3

1.5±0.1 1.5±0.1

0.4±0.05

0.4±0.1

0.4±0.1
0.45±0.1

No. UP003-A-P-SD-2.0

TITLE

SOT893-A-PKG Dimensions

No.

UP003-A-P-SD-2.0

ANGLE
UNIT

mm

ABLIC Inc.

4.0±0.1(10 pitches : 40.0±0.2)+0.1

ø1.5 -0

2.0±0.05

ø1.5 +0.1-0

0.3±0.05

8.0±0.1

2.0±0.1

4.75±0.1

Feed direction

No. UP003-A-C-SD-2.0

TITLE

SOT893-A-Carrier Tape

No.

UP003-A-C-SD-2.0

ANGLE
UNIT

mm

ABLIC Inc.

+1.0

13.0 - 0.0
15.4±1.0

Enlarged drawing in the central part

ø13±0.2

(60°)

(60°)

No. UP003-A-R-SD-2.0

TITLE

SOT893-A-Reel

No.

UP003-A-R-SD-2.0

ANGLE
UNIT

QTY.
mm

ABLIC Inc.

1,000

Disclaimers (Handling Precautions)1.

All the information described herein (product data, specifications, figures, tables, programs, algorithms andapplication circuit examples, etc.) is current as of publishing date of this document and is subject to change without
notice.

2.

The circuit examples and the usages described herein are for reference only, and do not guarantee the success ofany specific mass-production design.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by the reasons other than the products
described herein (hereinafter "the products") or infringement of third-party intellectual property right and any otherright due to the use of the information described herein.

3.

ABLIC Inc. is not liable for any losses, damages, claims or demands caused by the incorrect information describedherein.

4.

Be careful to use the products within their ranges described herein. Pay special attention for use to the absolute
maximum ratings, operation voltage range and electrical characteristics, etc.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by failures and / or accidents, etc. due tothe use of the products outside their specified ranges.

5.

Before using the products, confirm their applications, and the laws and regulations of the region or country where they
are used and verify suitability, safety and other factors for the intended use.

6.

When exporting the products, comply with the Foreign Exchange and Foreign Trade Act and all other export-relatedlaws, and follow the required procedures.

7.

The products are strictly prohibited from using, providing or exporting for the purposes of the development of
weapons of mass destruction or military use. ABLIC Inc. is not liable for any losses, damages, claims or demands
caused by any provision or export to the person or entity who intends to develop, manufacture, use or store nuclear,biological or chemical weapons or missiles, or use any other military purposes.

8.

The products are not designed to be used as part of any device or equipment that may affect the human body, human
life, or assets (such as medical equipment, disaster prevention systems, security systems, combustion control
systems, infrastructure control systems, vehicle equipment, traffic systems, in-vehicle equipment, aviation equipment,
aerospace equipment, and nuclear-related equipment), excluding when specified for in-vehicle use or other uses by
ABLIC, Inc. Do not apply the products to the above listed devices and equipments.
ABLIC Inc. is not liable for any losses, damages, claims or demands caused by unauthorized or unspecified use of
the products.

9.

In general, semiconductor products may fail or malfunction with some probability. The user of the products should
therefore take responsibility to give thorough consideration to safety design including redundancy, fire spread
prevention measures, and malfunction prevention to prevent accidents causing injury or death, fires and social
damage, etc. that may ensue from the products' failure or malfunction.
The entire system in which the products are used must be sufficiently evaluated and judged whether the products areallowed to apply for the system on customer's own responsibility.

10. The products are not designed to be radiation-proof. The necessary radiation measures should be taken in the
product design by the customer depending on the intended use.
11. The products do not affect human health under normal use. However, they contain chemical substances and heavy
metals and should therefore not be put in the mouth. The fracture surfaces of wafers and chips may be sharp. Be
careful when handling these with the bare hands to prevent injuries, etc.
12. When disposing of the products, comply with the laws and ordinances of the country or region where they are used.
13. The information described herein contains copyright information and know-how of ABLIC Inc. The information
described herein does not convey any license under any intellectual property rights or any other rights belonging to
ABLIC Inc. or a third party. Reproduction or copying of the information from this document or any part of thisdocument described herein for the purpose of disclosing it to a third-party is strictly prohibited without the express
permission of ABLIC Inc.
14. For more details on the information described herein or any other questions, please contact ABLIC Inc.'s sales
representative.
15. This Disclaimers have been delivered in a text using the Japanese language, which text, despite any translations into
the English language and the Chinese language, shall be controlling.
2.4-2019.07

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