NPS4053-Q100

5.5 V, 55 mΩ load switch with precision adjustable current
limit
Rev. 2 — 20 October 2023

Product data sheet

1. General description

3. Applications

The NPS4053-Q100 is a 5.5 V, 55 mΩ load switch with
precision adjustable current limit from 110 mA to 2.5 A.

•••

The NPS4053-Q100 switch limits the output current
to a constant current by using a constant-current
mode when the output load exceeds the current limit
threshold or shorted. An internal voltage comparator
disables the load switch when the output voltage ishigher than the input to protect devices on the input
side of the switch. The FLG pin is an active low output
to indicate overcurrent, over temperature and reverse
voltage conditions.
This product has been qualified to the Automotive
Electronics Council (AEC) standard Q100 (Grade 1)
and is suitable for use in automotive applications.

2. Features and benefits
•

•
•
•

•
•
•
•
•
•
•
•
•
•

Automotive product qualification in accordance with
AEC-Q100 (Grade 1)• Specified from -40 °C to +125 °C
Input operating voltage range (VIN): 2.5 V to 5.5 V
Maximum continuous current (IMAX): 2 A
ON resistance (RDS(on)):• VIN = 5.5 V: 55 mΩ (typical)• VIN = 3.6 V: 65 mΩ (typical)• VIN = 2.5 V: 80 mΩ (typical)
Adjustable current limit: 110 mA to 2.5 A±6 % current limit accuracy at 1.2 A
ILIM pin protection: can be shorted to ground or left
floating
Constant current during current limit
No body diode when disabled (no current path frompin OUT to pin IN)
Active reverse voltage protection
Built in soft start
UL 62368 recognition
SOT457 (TSOP6) and SOT8044-1 (HWSON6)
package option
ESD protection:• HBM: ANSI/ESDA/JEDEC JS-001 class 2
exceeds 2000 V• CDM: ANSI/ESDA/JEDEC JS-002 class C2a
exceeds 500 V• IEC 61000-4-2 contact discharge 8000 V• IEC 61000-4-2 air-gap discharge 15000 V

USB ports/hubs
Power distribution in Electronic Control Unit
Current limiting circuits
2.5 V to 5.5 V

100 kΩ

IN

OUT

0.1 µF

Fault indicator,
connect to controller

Control signal to turnon/off the device

120 µF

FLT

ILIM
15 kΩ

ON

GND
aaa-036930

Note: Connect at least 120 µF capacitor at output for
USB port application, other applications except USB
choose output capacitor according to actual transient
requirements.
Fig. 1.

Typical application circuit

NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

4. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range

Name

Description

Version

NPS4053GV-Q100-40 °C to +125 °C

SC-74;
TSOP6

plastic surface-mounted package; 6 leads

SOT457

NPS4053GH-Q100-40 °C to +125 °C

HWSON6 plastic thermal enhanced very very thin Small
Outline packages; no leads; 6 terminals;
0.65 mm pitch; 2.0 × 2.0 × 0.75 mm body

SOT8044-1

5. Marking
Table 2. Marking
Type number

Marking code

NPS4053GV-Q100

s3

NPS4053GH-Q100

s3

6. Functional diagramPower
switchIN

SupplyCurrent
sense

Driver

TRCB
OTP

ON

OUT

Current
limit

ILIM

Switchcontrol

FLG

GND

FLT
control

aaa-036931

Fig. 2.

Functional block diagram

NPS4053_Q100

Product data sheet

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

7. Pinning information
7.1. Pinning
GV package
SOT457 (SC-74; TSOP6)
IN

1

6

GND

2

5

ILIM

ON

3

4

FLG

OUT

terminal 1
index area

GH package
SOT8044-1 (HWSON6)

OUT 1

6 IN

ILIM 2

5 GND

FLG 3

Pad(1)

4 ON
sot8044-1_bp

aaa-037732

Transparent top view

aaa-036932(1) This is not a supply pin. Thermal pad should be soldered to GND externally; used to heat-sink the device tothe circuit board.

7.2. Pin description
Table 3. Pin description
Symbol Pin

I/O

Description

SOT8044-1 SOT457
IN

6

1

SupplyPower-switch input pin. Connect a ceramic capacitor of minimal 0.1 µF frompin IN to GND, as close to the IC as possible.

GND

5

2

SupplyGround connection; connect externally to PCB ground.

ON

4

3

I

ON/OFF (enable) input. LogicHIGH turns on power switch.

FLG

3

4

O

Active-low open-drain output, pulled up to VIN or other power rails via external
resistor. Asserts low during overcurrent, overtemperature and reverse-voltage
conditions. Can be shorted to GND or floating if not used.

ILIM

2

5

O

Connect external resistor between ILIM pin and GND to set current limit
threshold.

OUT

1

6

O

Power-switch output pin. Connect at least 120 μF capacitor at output for
USB port application. Choose output capacitor according to actual transient
requirements for other applications other than USB.

PAD

-

-

-

Thermal pad should be soldered to GND externally; used to heat-sink thedevice to the circuit board

8. Limiting values
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V). [1]Symbol Parameter

Conditions

Min

Max

Unit

VIN

input voltage

pin IN

-0.3

+6

V

VOUT

output voltage

pin OUT

-0.3

+6

V

VON

ON/OFF (enable) input voltage

pin ON

-0.3

+6

V

VILIM

ILIM pin voltage

pin ILIM

-0.3

+6

V

VFLG

FLG pin voltage

pin FLG

-0.3

+6

V

NPS4053_Q100

Product data sheet

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit
Symbol Parameter

Conditions

Min

Max

Unit

-6

+6

V

VINVOUT

voltage range from pin IN to pin OUT

IFLG

FLG pin sink current

pin FLG

0

25

mA

IILIM

ILIM pin source current

pin ILIM

0

1

mA

Tj

junction temperature

-40

+150

°C

Tstg

storage temperature

-65

+150

°C

ESD
VESD

[1]

electrostatic discharge voltage

HBM ANSI/ESDA/JEDEC JS-001

-2

+2

kV

CDM ANSI/ESDA/JEDEC JS-002

-0.5

+0.5

kV

IEC 61000-4-2 contact discharge

-8

+8

kV

IEC 61000-4-2 air-gap discharge

-15

+15

kV

Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions
above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is
not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of thedevice.

9. Recommended operating conditions
Table 5. Recommended operating conditions
SymbolParameter

Conditions

Min

Max

Unit

VIN

input voltage

pin IN

2.2

5.5

V

VON

ON/OFF (enable) input voltage

pin ON

0

5.5

V

VIH

HIGH-level input voltage

ON pin

1.4

-

V

VIL

LOW-level input voltage

ON pin

0

0.35

V

IOUT

continuous output current

0

2

A

RILIM

current-limit threshold resistor range(nominal 1%) from pin ILIM to GND

9.31

210

kΩ

IFLG

continuous sink current pin FLG

0

10

mA

Tamb

ambient temperature

-40

+125

°C

10. Thermal Information
Table 6. Thermal information
Thermal resistance according JEDEC51 -5 and -7
Symbol Parameter

Package

Unit

SOT457(SC-74; TSOP6)

SOT8044-1 (HWSON6)

Junction to ambient thermal resistance

160

63.4

°C/W

RθJC(top) Junction to case(top) thermal resistance

132.1

98.2

°C/W

ΦJT

Junction to top char parameter

21.1

5.8

°C/W

ΦJB

Junction to board char parameter

37.1

33.1

°C/W

RθJA

NPS4053_Q100

Product data sheet

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

11. Static characteristics
Table 7. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
VIN = 5 V, RFLG = 100 kΩ, All typical values are measured at Tamb = 25 °C, unless otherwise specified.
Symbol Parameter

Conditions

Tamb = -40 °C to +125 °C Unit
Min

Typ

Max

VIN= 5.5 V

-

55

88

mΩ

VIN= 3.6 V

-

65

109

mΩ

VIN= 2.5 V

-

80

140

mΩ

VIN = 5.5 V

-

0.3

1

ms

VIN = 2.5 V

-

0.2

1

ms

VIN = 5.5 V

-

0.2

0.3

ms

VIN = 2.5 V

-

0.2

0.3

ms

POWER SWITCHRDS(on)trtfdrain-source onstate resistancerise time output

fall time output

CL = 1 μF; RL = 100 Ω

CL = 1 μF; RL = 100 Ω

ON/OFF INPUT
ION

input current

VON = 0 V or 5.5 V

-0.5

-

0.5

uA

ton

turn-on time

VIN= 2.5 V to 5.5 V; CL = 1 μF; RL = 100 Ω

-

-

3

ms

toff

turn-off time

VIN=2.5 V to 5.5 V; CL = 1 μF; RL = 100 Ω

-

-

3

ms

ILIMIT

current-limit
threshold

VIN - VOUT = 1.0 V
RILIM = 9.31 kΩ; Tj ≤ 125 °C

2.25

2.5

2.72

A

RILIM = 10.2 kΩ; Tj ≤ 125 °C

2.06

2.3

2.50

A

RILIM = 12.7 kΩ; Tj ≤ 125 °C

1.68

1.85

2.01

A

RILIM = 15.0 kΩ; Tj ≤ 125 °C

1.48

1.57

1.67

A

RILIM = 20.0 kΩ; Tj ≤ 125 °C

1.09

1.18

1.25

A

RILIM = 49.9 kΩ; Tj ≤ 125 °C

0.42

0.47

0.51

A

RILIM = 210.0 kΩ; Tj ≤ 125 °C

0.08

0.11

0.14

A

pin LIMIT shorted to GND

-

2.46

-

A

pin LIMIT open

-

0.11

-

A

REVERSE VOLTAGE PROTECTION
Vreverse

reverse-voltage
comparator trip
point

-

75

110

mV

treverse

time from
VIN = 4 V; VOUT = 5 V
reverse-voltage
condition to
MOSFET turn off

-

0.5

5

µs

SUPPLY CURRENT
Iq

quiescent current VIN = VON= 5.5 V; no load on pin OUT; RILIM = 20 kΩ

-

-

285

µA

ISD

shut down
current

VIN = 5.5 V; no load on pin OUT, VON = 0 V;
RILIM = 20 kΩ

-

-

1

µA

IREV

reverse current
leakage

VIN = 0 V; VOUT = 5.5 V

-

150

-

nA

NPS4053_Q100

Product data sheet

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit
Symbol Parameter

Conditions

Tamb = -40 °C to +125 °C Unit
Min

Typ

Max

VIN rising

-

2.35

2.45

V

Tj = 25 °C

-

25

-

mV

UNDERVOLTAGE LOCKOUTVUVLOunder voltage
lockout low-level
input voltage

Vhys(UVLO) undervoltage
lockout
hysteresis
voltage
FLG INDICATORVOL

LOW-level output IFLG = 1 mA
voltage

-

-

180

mV

IS(OFF)

OFF-stateleakage current

VFLG = 5.5 V

-

-

1

µA

tdegl

deglitch time

FLG assertion or de-assertion due to overcurrent
condition

-

8.5

12

ms

FLG assertion or de-assertion due to reverse-voltage
condition

-

0.2

1

ms

THERMAL SHUTDOWN
Tth(sd)shutdown
thresholdtemperature

155

-

-

ºC

Tsd(hys)

shutdown
temperaturehysteresis

-

10

-

ºC

11.1. Typical characteristics

aaa-036933

aaa-036934

VIN=5 V, COUT = 1 µF, RILIM = 20 KΩ, Iload = 1 A
Fig. 3.

Turn ON

NPS4053_Q100

Product data sheet

VIN=5 V, COUT = 1 µF, RILIM = 20 KΩ, Iload = 1 A
Fig. 4.

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

aaa-036936

aaa-036935

VIN=5 V, VOUT=5 V, COUT = 1 µF, RILIM = 20 KΩ,
Iload = 1 A
Fig. 5.

Enable

VIN=5 V, VOUT=5 V, COUT = 1 µF, RILIM = 20 KΩ,
Iload = 1 A
Fig. 6.

Disableaaa-036937

Fig. 7.

Load transient 0 A to 2.5 A

aaa-036938

Fig. 8.

VIN transient 1 A to 2 A

aaa-036939

Fig. 9.

Enable to short

NPS4053_Q100

Product data sheet

aaa-036940

Fig. 10. Hard short

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

aaa-036942

aaa-036941

Fig. 11. Reverse voltage blocking

Fig. 12. Reverse voltage blocking

aaa-036943

80
RDS(on)(mΩ)
70

aaa-036944

3

ILIMIT
(A)
2.5

2
60
50

(1)
(2)
(3)
(4)
(5)

1.5

(1)
(2)
(3)
(4)

1

40
0.5
30
0
20
2.5

3

3.5

(1) Tamb = 125 °C(2) Tamb = 85 °C(3) Tamb = 25 °C(4) Tamb = -40 °C
Fig. 13. RDS(on) vs VIN

NPS4053_Q100

Product data sheet

4

4.5

5
VIN (V)

5.5

0

50

100

150

200
RILIM (kΩ)250(1) VIN = 2.5 V(2) VIN = 3.3 V(3) VIN = 3.6 V(4) VIN = 5.0 V(5) VIN = 5.5 V
Fig. 14. Current limit vs RILIM

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit
aaa-036945
(1)
(2)
(3)

250
Iq
(µA)
225

aaa-036946

100
Iq
(nA)
80

200
60
175
40

(1)
(2)
(3)

150
20

125
100
-50

-25

0

25

50

75

100 125
Tj (°C)

0
-50

150

(1) VIN = 5.0 V(2) VIN = 3.3 V(3) VIN = 2.5 V

-25

0

25

50

75

100 125
Tj (°C)

150(1) VIN = 5.0 V(2) VIN = 3.3 V(3) VIN = 2.5 V

Fig. 15. Supply current (output enabled)

Fig. 16. Supply current (output disabled)

12. Functional description
12.1. Overview
The NPS4053-Q100 is a 5.5 V, 55 mΩ P-channel load switch with overcurrent, overtemperature and active reverse voltage
protections. The NPS4053-Q100 allows users to program the current limit threshold between 110 mA and 2.5 A using an
external resistor.
The NPS4053-Q100 has built in soft-start functionality and controls the rising and falling times of the output voltage tolimit large current and voltage surges. Additional features include overtemperature protection and active reverse-voltage
protection.
NPS4053-Q100 enters constant-current limit when the load exceeds the current limit threshold.

12.2. Functional block diagramPower
switchIN

SupplyCurrent
sense

Driver

TRCB
OTP

ON

OUT

Current
limit

ILIM

Switchcontrol

FLG

GND

FLT
control

aaa-036931

Fig. 17. Functional block diagram

NPS4053_Q100

Product data sheet

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

12.3. Feature description
12.3.1. Overcurrent protection
When the load current exceeds current limit threshold set by the external resistor, the NPS4053-Q100 enters constantcurrent mode by limiting the output current to the current limit threshold until the overcurrent condition is removed, FLG pin
asserts if the overcurrent condition persists for 8.5 ms.

12.3.2. Output short circuit protection (ILIMIT)
When the switch is turned on while the output pin is shorted to ground, the NPS4053-Q100 enters constant current mode
immediately and limits the output current to ILIMIT (see Fig. 18) until the short circuit condition is removed. When the output
pin is shorted to ground while the switch is fully turned on, a large current will flow through the switch. The switch responses
to short-circuit condition within the time tSC (see Fig. 19). Like previous case, NPS4053-Q100 limits the output current to
ILIMIT until the short circuit condition is removed.

VIN and ON

Short circuit released

VOUT shorted to GND

I LIMIT

Current limit

IOUT

Current limit removed

FLG

FLG deglitch time

FLG deglitch time
aaa-036947

Fig. 18. Power on to short circuit

NPS4053_Q100

Product data sheet

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit
VOUT
Hard short

Hard short release

Current limit ILIMIT

IOUTCurrent limit removed

tSC
FLG

FLG deglitch time

FLG deglitch time
aaa-036948

Fig. 19. Hot short

12.3.3. ILIM pin protection
As ILIM pin is used to configure the current limit threshold with an external resistor, it's performance of current limiting will be
impacted once the ILIM pin is shorted to ground or is floating. NPS4053-Q100 provides ILIM pin protection: ILIM pin can beshorted to ground or left floating. Load current is limited by internal current limit circuit under the two circumstances. Users
can leave ILIM pin shorted to ground or left floating in actual applications to save system cost.

12.3.4. Overtemperature protection
The NPS4053-Q100 thermal cycles if an over current condition is present long enough to activate thermal Limit in any of theabove cases. The switch turns off when the junction temperature exceeds 155 °C (typical). The switch remains off until thejunction temperature cools 10 °C (typical) and then restarts (see Fig. 20). FLG pin asserts immediately when the junction
temperature exceeds 155 °C.

NPS4053_Q100

Product data sheet

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

VIN and ON

Short circuit released

VOUT shorted to GND
Restarts
Current Limit

I SC

Thermal shutdown
IOUT

Current limit removed

Thermal cycling
FLG

FLG deglitch time

FLG deglitch time

aaa-036949

Fig. 20. Power on to short circuit until thermal shutdown

12.3.5. Reverse voltage protection
The NPS4053-Q100 integrates active reverse voltage protection. The switch turns off internal MOSFET whenever the
output voltage exceeds the input voltage by 75 mV for 0.5 µs. The NPS4053-Q100 switch turns on once the reverse voltage
condition is removed (see Fig. 21). FLG pin will assert low 0.2 ms after reverse voltage condition and de-assert after reverse
voltage condition is removed.

VIN

Reverse voltage
Reverse voltage release
VOUT = VINVOUT = VINVOUT = 0 V

FLG

FLG deglitch time

FLG deglitch time

aaa-036950

Fig. 21. Reverse voltage protection

NPS4053_Q100

Product data sheet

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

12.3.6. FAULT flag response
Fault flag (pin FLG) output is an N-MOS open drain output. FLG pin is asserted low during overcurrent, overtemperatureand reverse voltage conditions. An internal deglitch circuit is designed to eliminate false FLG reporting. Deglitch time forover current is 8.5 ms and that for reverse voltage is 0.2 ms. FLG pin voltage goes low 8.5 ms after over current and goeshigh 8.5 ms after over current condition is removed (see Fig. 18). FLG pin voltage goes low 0.2 ms after reverse voltage andgoes high 0.2 ms after reverse voltage condition is removed (see Fig. 21). Overtemperature condition is not deglitched andasserts the FLG signal immediately when the junction temperature exceeds 155 °C. FLG pin can be shorted to ground or left
floating when not used.

12.3.7. Undervoltage lockout (UVLO)
The undervoltage lockout (UVLO) circuit prevents the power switch from turning on until input voltage reaches the UVLO
turn on threshold. Hysteresis is also built in to present unwanted on and off cycling due to input voltage drop from large
current surges.

12.3.8. Enable (ON)The logic enable (pin ON) circuit controls the power switch, a logic high enables the internal MOSFET. The enable input
is compatible with both TTL and CMOS logic levels. The enable circuit also provides power to other circuits to reduce thesupply current. The power supply current is reduced to less than 1 µA when a logic low is present on ON pin.

12.3.9. Adjustable current limit threshold
NPS4053-Q100 can change current limit threshold from 110 mA to 2.5 A by connecting an external resistor between ILIM
pin and GND. The resistor value is required to be between 9.31 KΩ to 210 kΩ (1 % tolerance) to ensure the stability of theinternal regulation loop. The relationship between external resistor and current limit threshold is shown in equation below:

13. Application information
13.1. One-level current limit application
2.5 V to 5.5 V
100 kΩ

IN

OUT

0.1 µF

Fault indicator,
connect to controller

Control signal to turnon/off the device

100 µF

FLT

ILIM
15 kΩ

ON

GND
aaa-036951

VIN = 2.5 V to 5.5 V; VOUT = 2.5 V to 5.5 V; current limitation = 1.57 A
Fig. 22. One-level current limit circuit

NPS4053_Q100

Product data sheet

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

13.2. Two-level current limit circuit
2.5 V to 5.5 V

IN

OUT
COUT

0.1 µF

100 kΩ

Fault indicator,
connect to controller

Control signal to turnon/off the device

FLT

ILIM
20 kΩ

ON

20 kΩ

GND
Two current limit
threshold control signal
aaa-036952

VIN = 2.5 V to 5.5 V; VOUT = 2.5 V to 5.5 V;
current limitation 1 = 1.18 A;
current limitation 2 = 2.36 A
Fig. 23. Two-level current limit circuit

13.3. Auto-retry configuration
NPS4053-Q100 switch limits the output current to a safe level by using a constant-current mode when the output load
exceeds the current limit threshold or shorted. Constant-current version can be configured as auto-retry version via external
resistor and capacitor as Fig. 24 shows. When over current occurs, FLG pin will be pulled low. Since ON pin is tied to FLG
pin, ON pin will also be pulled low thus disable the load switch. The over current condition will not exist once the switch
is turned off so the FLG pin and ON pin voltage will go high and the switch will be turn on again. ON/OFF time will be
determined by RC time constant. An actual test result can be found in Fig. 25.
2.5 V to 5.5 V
10 kΩ

0.1 µF

IN

OUT

FLT

ILIM

COUT

9.31 kΩON

GND

0.1 µF

aaa-036953

Fig. 24. Auto-retry configuration circuit

aaa-036954

Fig. 25. Auto-retry test result

NPS4053_Q100

Product data sheet

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

13.4. Programming the current limit threshold via a resistor
The NPS4053-Q100 is capable of adjusting the current limit threshold via an external resistor placed between the ILIM
pin and ground. The NPS4053-Q100 uses an internal regulation loop to provide a regulated voltage on the ILIM pin. The
NPS4053-Q100 offers short circuit and open protection on the ILIM pin to prevent damage to the device if the ILIM pin is
not properly configured. The recommended 1% resistor range for RILIM is 9.31 kΩ ≤ RILIM ≤ 210 kΩ to ensure stability of theinternal regulation loop. The following tables and charts provide information about how the RILIM resistor affect the current
limit threshold (ILIMIT) at specific input voltages.
Table 8. Current limit threshold at VIN = 2.5 V

VIN = 2.5 V; Tamb = 25 °C

RILIM resistance connected
between pin ILIM and GND (kΩ)

ILIMIT current limit threshold (A)

9.31

1.9

10.2

1.84

12.7

1.67

15

1.55

20

1.17

49.9

0.46

210

0.11
aaa-036955

2

ILIMIT
(A)

1.6

1.2

0.8

0.4

0

0

50

100

150

200
RILIM (kΩ)

250

VIN = 2.5 V; Tamb = 25 °C
Fig. 26. Current limit threshold vs RILIM
Table 9. Current limit threshold at VIN = 3.3 V

VIN = 3.3 V; Tamb = 25 °C

RILIM resistance connected
between pin ILIM and GND (kΩ)

ILIMIT current limit threshold (A)

9.31

2.5

10.2

2.3

12.7

1.85

15

1.57

20

1.17

49.9

0.47

210

0.11

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit
aaa-036956

2.5
ILIMIT
(A)
2

1.5

1

0.5

0

0

50

100

150

200
RILIM (kΩ)

250

VIN = 3.3 V; Tamb = 25 °C
Fig. 27. Current limit threshold vs RILIM
Table 10. Current limit threshold at VIN = 5 V

VIN = 5 V; Tamb = 25 °C

RILIM resistance connected
between pin ILIM and GND (kΩ)

ILIMIT current limit threshold (A)

9.31

2.49

10.2

2.3

12.7

1.85

15

1.57

20

1.18

49.9

0.47

210

0.11
aaa-036957

2.5
ILIMIT
(A)
2

1.5

1

0.5

0

0

50

100

150

200
RILIM (kΩ)

250

VIN = 5 V; Tamb = 25 °C
Fig. 28. Current limit threshold vs RILIM

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

14. Layout
14.1. Power supply recommendations
The NPS4053-Q100 is designed to operate with a VIN range of 2.5 V to 5.5 V. The VIN power supply must be well regulated
and placed as close to the device terminal as possible. The power supply must be able to withstand all transient load current
steps. In most situations, using an input capacitance (CIN) of 1 μF is sufficient to prevent the supply voltage from dipping
when the switch is turned on. In cases where the power supply is slow to respond to a large transient current or large load
current step, additional bulk capacitance may be required on the input.

14.2. Layout guidelines
For best performance, all traces must be as short as possible. To be most effective, the input and output capacitors must beplaced close to the device to minimize the effects that parasitic trace inductances may have on normal operation. Using wide
traces for VIN, VOUT, and GND helps minimize the parasitic electrical effects.

14.3. Layout example

VIN

IN 1

6 OUT

GND 2

5 ILIM

ON 3

4 FLG

VOUT

aaa-037059

Fig. 29. NPS4053-Q100 layout example (SOT457)

VIN

IN

6

1 OUT

GND 5

2 ILIM

ON 4

3 FLG

GND

VOUT

GND
aaa-036958

Fig. 30. NPS4053-Q100 layout example (SOT8044-1)

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

15. Thermal considerations
The maximum IC junction temperature should be restricted to 125 °C under normal operating conditions. To calculate themaximum allowable dissipation, PD(max) for a given output current and ambient temperature, the equation as shown below
can be used:

Where:
PD(MAX) = maximum allowable power dissipation
TJ(MAX) = maximum allowable junction temperature (125 °C for the NPS4053-Q100 devices)
Tamb = ambient temperature of the device
θJA = junction to air thermal impedance. This parameter is highly dependent upon board layout.

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

16. Package outline
Plastic, surface-mounted package (SC-74; TSOP6); 6 leads

D

SOT457

B

E

y

A

X

HE

6

5

v M A

4

Q

A
pin 1
index

A1
c

1

2

Lp

3

bp

e

detail X

w M B

0

1

2 mm

scale

Dimensions (mm are the original dimensions)
Unit
max
nom
min

mm

A

A1

bp

1.1

0.1

0.9

c

D

E

0.40 0.26

3.1

1.7

0.013 0.25 0.10

2.7

1.3

e
0.95

HE

Lp

Q

3.0

0.6

0.33

2.5

0.2

0.23

v

w

y

0.2

0.2

0.1

sot457_po

OutlineversionReferences
IEC

JEDEC

JEITA

SOT457

SC-74

Europeanprojection

Issue date
06-03-16
18-11-27

Fig. 31. Package outline SOT457 (SC-74; TSOP6)

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit
HWSON6: plastic thermal enhanced very very thin Small Outline packages, no leads;
6 terminals; 0.65 mm pitch; 2.0 mm x 2.0 mm x 0.75 mm bodyD2b (6×)1

3
L (6×)

z

C A B

v
w

C A B
C

z

C A B

SOT8044-1

E2

k (6×)
6

4

detail M

e
y1 C

A

C
seating plane
M
(6×)
B

D

A3

y C

A1

A

u C

E
0

terminal 1
index area

2 mm
scale

Dimensions (mm are the original dimensions)
Unit

A

A1

A3

b

max 0.80 0.05
0.35
0.2
nom 0.75
0.30
Ref.
min 0.70 0.00
0.25

mm

D

D2

E

E2

e

k

1.70
1.10
2.00
2.00
0.65
1.60
1.00
BSC
BSC
BSC
1.50
0.90

0.25
Ref.

L

u

v

w

y

y1

z

0.30
0.25 0.05 0.10 0.05 0.05 0.05 0.10
0.20
sot8044-1_po

Outlineversion
SOT8044-1

References
IEC

JEDEC

JEITA

Europeanprojection

Issue date
22-06-15
23-05-25

MO-229Fig. 32. Package outline SOT8044-1 (HWSON6)

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit

17. Abbreviations
Table 11. Abbreviations
AcronymDescription
CDM

Charged Device Model

CMOS

Complementary Metal Oxide Semiconductor

DUT

Device Under Test

ESD

ElectroStatic Discharge

HBM

Human Body Model

TTL

Transistor-Transistor Logic

18. Revision history
Table 12. Revision history
Document ID
Release date

Data sheet status

Change notice

Supersedes

NPS4053_Q100 v.2

20231020

Product data sheet-

NPS4053_Q100 v.1

Modifications:••

NPS4053_Q100 v.1

20230629

NPS4053_Q100

Product data sheet

Added type number NPS4053GV-Q100 (SOT457/SC-74; TSOP6)
Table 7: typical output rise time at VIN = 2.5 V changed to 0.2 ms.
Product data sheet-

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit
equipment, nor in applications where failure or malfunction of an Nexperia
product can reasonably be expected to result in personal injury, death orsevere property or environmental damage. Nexperia and its suppliers accept
no liability for inclusion and/or use of Nexperia products in such equipment orapplications and therefore such inclusion and/or use is at the customer's own
risk.

19. Legal information
Data sheet status
Document status[1][2]

Product
status [3]Definition

Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of thisdocument, and as such is not complete, exhaustive or legally binding.

Objective [short]data sheet

Development

This document contains data fromthe objective specification for
product development.

Preliminary [short]data sheet

Qualification

This document contains data fromthe preliminary specification.

Applications — Applications that are described herein for any of theseproducts are for illustrative purposes only. Nexperia makes no representation
or warranty that such applications will be suitable for the specified use
without further testing or modification.

Product [short]data sheet

Production

This document contains the productspecification.

[1]
[2]
[3]

Please consult the most recently issued document before initiating orcompleting a design.
The term 'short data sheet' is explained in section "Definitions".
The product status of device(s) described in this document may havechanged since this document was published and may differ in case ofmultiple devices. The latest product status information is available on
the internet at https://www.nexperia.com.

Definitions
Draft — The document is a draft version only. The content is still underinternal review and subject to formal approval, which may result in
modifications or additions. Nexperia does not give any representations or
warranties as to the accuracy or completeness of information included hereinand shall have no liability for the consequences of use of such information.
Short data sheet — A short data sheet is an extract from a full data sheetwith the same product type number(s) and title. A short data sheet isintended for quick reference only and should not be relied upon to containdetailed and full information. For detailed and full information see the relevant
full data sheet, which is available on request via the local Nexperia sales
office. In case of any inconsistency or conflict with the short data sheet, thefull data sheet shall prevail.
Product specification — The information and data provided in a Productdata sheet shall define the specification of the product as agreed between
Nexperia and its customer, unless Nexperia and customer have explicitly
agreed otherwise in writing. In no event however, shall an agreement bevalid in which the Nexperia product is deemed to offer functions and qualities
beyond those described in the Product data sheet.

Disclaimers
Limited warranty and liability — Information in this document is believed
to be accurate and reliable. However, Nexperia does not give any
representations or warranties, expressed or implied, as to the accuracy
or completeness of such information and shall have no liability for theconsequences of use of such information. Nexperia takes no responsibility
for the content in this document if provided by an information source outsideof Nexperia.
In no event shall Nexperia be liable for any indirect, incidental, punitive,
special or consequential damages (including - without limitation - lost
profits, lost savings, business interruption, costs related to the removalor replacement of any products or rework charges) whether or not suchdamages are based on tort (including negligence), warranty, breach ofcontract or any other legal theory.

Customers are responsible for the design and operation of their applications
and products using Nexperia products, and Nexperia accepts no liability forany assistance with applications or customer product design. It is customer’ssole responsibility to determine whether the Nexperia product is suitableand fit for the customer’s applications and products planned, as well as
for the planned application and use of customer’s third party customer(s).
Customers should provide appropriate design and operating safeguards tominimize the risks associated with their applications and products.
Nexperia does not accept any liability related to any default, damage, costs
or problem which is based on any weakness or default in the customer’s
applications or products, or the application or use by customer’s third party
customer(s). Customer is responsible for doing all necessary testing for thecustomer’s applications and products using Nexperia products in order toavoid a default of the applications and the products or of the application or
use by customer’s third party customer(s). Nexperia does not accept any
liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above thosegiven in the Recommended operating conditions section (if present) or theCharacteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial sale — Nexperia products are
sold subject to the general terms and conditions of commercial sale, as
published at http://www.nexperia.com/profile/terms, unless otherwise agreed
in a valid written individual agreement. In case an individual agreement isconcluded only the terms and conditions of the respective agreement shallapply. Nexperia hereby expressly objects to applying the customer’s generalterms and conditions with regard to the purchase of Nexperia products bycustomer.
No offer to sell or license — Nothing in this document may be interpreted
or construed as an offer to sell products that is open for acceptance or the
grant, conveyance or implication of any license under any copyrights, patents
or other industrial or intellectual property rights.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a priorauthorization from competent authorities.
Translations — A non-English (translated) version of a document is forreference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.

Trademarks
Notice: All referenced brands, product names, service names andtrademarks are the property of their respective owners.

Notwithstanding any damages that customer might incur for any reason
whatsoever, Nexperia’s aggregate and cumulative liability towards customer
for the products described herein shall be limited in accordance with theTerms and conditions of commercial sale of Nexperia.
Right to make changes — Nexperia reserves the right to make changes
to information published in this document, including without limitation
specifications and product descriptions, at any time and without notice. This
document supersedes and replaces all information supplied prior to the
publication hereof.
Suitability for use in automotive applications — This Nexperia producthas been qualified for use in automotive applications. Unless otherwise
agreed in writing, the product is not designed, authorized or warranted tobe suitable for use in life support, life-critical or safety-critical systems or

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NPS4053-Q100

Nexperia

5.5 V, 55 mΩ load switch with precision adjustable current limit
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Date of release: 20 October 2023

Contents
1. General description...................................................... 1
2. Features and benefits.................................................. 1
3. Applications.................................................................. 1
4. Ordering information....................................................2
5. Marking.......................................................................... 2
6. Functional diagram.......................................................2
7. Pinning information......................................................3
7.1. Pinning.........................................................................3
7.2. Pin description............................................................. 3
8. Limiting values............................................................. 3
9. Recommended operating conditions..........................4
10. Thermal Information................................................... 4
11. Static characteristics..................................................5
11.1. Typical characteristics................................................6
12. Functional description............................................... 912.1. Overview.................................................................... 912.2. Functional block diagram...........................................912.3. Feature description.................................................. 1012.3.1. Overcurrent protection.......................................... 1012.3.2. Output short circuit protection (ILIMIT)....................1012.3.3. ILIM pin protection................................................ 1112.3.4. Overtemperature protection.................................. 1112.3.5. Reverse voltage protection................................... 1212.3.6. FAULT flag response............................................ 13
12.3.7. Undervoltage lockout (UVLO)............................... 13
12.3.8. Enable (ON)..........................................................1312.3.9. Adjustable current limit threshold..........................13
13. Application information........................................... 13
13.1. One-level current limit application............................1313.2. Two-level current limit circuit................................... 14
13.3. Auto-retry configuration........................................... 14
13.4. Programming the current limit threshold via a
resistor................................................................................15
14. Layout........................................................................ 17
14.1. Power supply recommendations..............................17
14.2. Layout guidelines.....................................................17
14.3. Layout example....................................................... 17
15. Thermal considerations........................................... 18
16. Package outline........................................................ 19
17. Abbreviations............................................................ 21
18. Revision history........................................................21
19. Legal information......................................................22© Nexperia B.V. 2023. All rights reserved

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