MCW03 Series
3W, Wide Input Range SIP, Single & Dual Output DC/DC Converters

Key Features


$1600
VDC

2:1

Low Cost

Low NoiseLow Profile

High Efficiency up to 83%
1600VDC Isolation
MTBF > 1,000,000 Hours
2:1 Wide Input Range
Low Cost
Remote On/Off Control
Temperature Performance -40] to +70]
UL 94V-0 Package MaterialInternal SMD Construction

Remote on/off

I/O Isolation

Wide Range

Minmax's MCW03-Series power modules are low-profile dc-dc converters that operate over input voltage ranges of 4.5-9VDC, 9-18VDC,
18-36VDC and 36-75VDC which provide precisely regulated single output voltages of 3.3V, 5V, 12V, 15V, {5V, {12V and {15VDC.
The -40] to +70] operating temperature range makes it ideal for data communication equipments, mobile battery driven equipments,
distributed power systems, telecommunication equipments, mixed analog/digital subsystems, process/machine control equipments, computer
peripheral systems and industrial robot systems.
The modules have a maximum power rating of 3W and a typical full-load efficiency of 81%, continuous short circuit, 30mV output ripple,built-in filtering for both input and output minimize the need for external filtering.

Absolute Maximum Ratings
Parameter
5VDC Input Models
Input Surge Voltage( 1000 mS )Environmental Specifications
Min.

Max.

Unit

Parameter

Conditions

Min.

Max.

Unit

-0.7

11

VDC

Operating Temperature

Ambient-40+70]

Case

12VDC Input Models

-0.7

25

VDC

Operating Temperature

24VDC Input Models

-0.7

50

VDC

Storage Temperature-40+100]-55+125]

95%

48VDC Input Models

-0.7

100

VDC

Humidity---Lead Temperature (1.5mm from case for 10 Sec.)---260]

CoolingFree-Air Convection

Internal Power Dissipation---

2,500mW

Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.

1MINMAX

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MCW03 Series
Model Selection Guide
Model
Number

Input
Voltage

OutputVoltage

VDC

VDC
3.3

Max.
mA
700

Min.
mA
175

@Max. LoadmA (Typ.)651

MCW03-05S05

5600

150822MCW03-05S1212250

63759

1520050759

MCW03-05D05{5{300{7581174

MCW03-05D12{12{125{3175979

MCW03-05D15{15{100{2575979

MCW03-12S033

3.370017525775

MCW03-12S05

560015032178

MCW03-12S121225063301

1520050301

MCW03-12D05{5{300{7531679

MCW03-12D12{12{125{3130183

MCW03-12D15{15{100{2530183

MCW03-24S033

3.370017512875

MCW03-24S05

5600

15016078

MCW03-24S121225063151

1520050151

MCW03-24D05{5{300{7515680

MCW03-24D12{12{125{3115183

MCW03-24D15{15{100{2515183

MCW03-48S033

3.37001756475

MCW03-48S05

5600

1508078

MCW03-48S12122506375152005075

MCW03-48D05{5{300{757880

MCW03-48D12{12{125{317583

MCW03-48D15{15{100{257583

MCW03-05S033

MCW03-05S15

MCW03-12S15

MCW03-24S15

MCW03-48S155( 4.5 ~ 9 )12( 9 ~ 18 )24
( 18 ~ 36 )48
( 36 ~ 75 )Output Current

Input Current

Efficiency@No LoadmA (Typ.)@Max. Load
% (Typ.)
7173
79

7079

83
2083

83
1083

83
883

Capacitive Load
Models by Vout

3.3V

5V

12V15V{5V #{12V #{15V #Unit

Maximum Capacitive Load

1760

100017011047010047uF# For each output

Input Fuse Selection Guide

25V Input Models

12V Input Models

24V Input Models

48V Input Models

2000mA Slow - Blow Type1000mA Slow - Blow Type

500mA Slow - Blow Type

250mA Slow - Blow TypeMINMAX

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MCW03 Series
Input Specifications
Parameter
Start Voltage

Under Voltage Shutdown

Model

Typ.

Max.
4.5

5V Input Models

3412V Input Models

4.57924V Input Models

81218Unit

48V Input Models

1624365V Input Models---

3.5412V Input Models---

6.58.524V Input Models---111748V Input Models---

2234------

1A------

2500mW

Reverse Polarity Input Current
Short Circuit Input PowerMin.

All Models

Input Filter

VDC

Capacitor typeOutput Specifications
ParameterConditions

Min.

Typ.

Max.

Unit

Full Load and Nominal Vin---{0.5{1%Line Regulation

Vin=Min. to Max.

---

{0.3{0.5%

Load Regulation

Io=25% to 100%---{0.5{1.0%---5075

mV P-P------

100mV P-P

---

---

15mV rms

Over Power Protection120------%

Transient Recovery Time---300500uS

Output Voltage Accuracy

Ripple & Noise (20MHz)
Ripple & Noise (20MHz)

Over Line, Load & Temp.

Ripple & Noise (20MHz)

Transient Response Deviation

25% Load Step Change

Temperature Coefficient
Output Short Circuit---{3{5%------{0.02%/]

Continuous

General Specifications
ParameterConditions

Min.

Typ.

Max.

Unit

Isolation Voltage Rated

60 Seconds

1600

---

---

VDC

Isolation Voltage Test

Flash Tested for 1 Second

1760

---

---

VDC

Isolation Resistance

500VDC

1000

---

---

M[Isolation Capacitance

100KHz,1V---

60200pF

---

300

---

KHz

1000

---

---

K Hours

Switching Frequency
MTBFMIL-HDBK-217F @ 25], Ground Benign

Remote On/Off Control
Parameter
DC/DC OnConditions

Min.

Typ.

Max.

Unit

Under 0.6 VDC or Open Circuit, drops down to 0VDC by 2mV/]

DC/DC Off

2.7 to 15 VDCControl Input Current ( on )Vctrl = 0V-------1mA

Control Input Current ( off )Vctrl = 5.0V

---

---

1mA

2.5mA

Control Common

Referenced to Negative Input

Standby Input Current

3---MINMAX

1

REV:4 2010/08/31

MCW03 Series
Notes:
1. Specifications typical at Ta=+25], resistive load, nominal input voltage, rated output current unless otherwise noted.
2. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%.
3. Ripple & Noise measurement bandwidth is 0-20 MHz.
4. These power converters require a minimum output loading to maintain specified regulation.
5. Operation under no-load conditions will not damage these modules; however, they may not meet all specifications listed.
6. All DC/DC converters should be externally fused at the front end for protection.
7. Other input and output voltage may be available, please contact factory.
8. Specifications subject to change without notice.

Block Diagram
Single Output

Dual Output+Vo+Vo+Vin+Vin

Com.
-Vo-Vo-Vin
On/Off4PFM

Isolation-Vin

Ref.Amp

On/OffMINMAXPFMIsolation

Ref.Amp

REV:4 2010/08/31

90100809070

Efficiency(%)

Efficiency(%)

MCW03 Series

6050408070605040303020203640454953586266713675

404549Input Voltage(V)Efficiency vs Input Voltage ( MCW03-48S05 )Efficiency(%)

Efficiency(%)

80706050403036V201048V75V

0203040506070805862667175

Efficiency vs Input Voltage ( MCW03-48D15)

901053

Input Voltage(V)9010090807060504030
2010036V
48V75V
10100

2030405060708090

100% of Full Load

% of Full Load

Efficiency vs Output Load ( MCW03-48S05 )Efficiency vs Output Load ( MCW03-48D15 )100

Output Power (%)

400LFM

100LFM

80200LFM

Naturalconvection60

40

200~-4050

60

7080

90100

110

Ambient Temperature ]Derating Curve

5MINMAX

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MCW0CW03 Series
Test Configurations
Input Reflected-Ripple Current Test Setup

Maximum Capacitive LoadInput reflected-ripple current is measured with a inductor
Lin (4.7uH) and Cin (220uF, ESR < 1.0[ at 100 KHz) tosimulate source impedance.
Capacitor Cin, offsets possible battery impedance.
Current ripple is measured at the input terminals of themodule, measurement bandwidth is 0-500 KHz.

The MCW03 series has limitation of maximum connected
capacitance at the output.
The power module may be operated in current limitingmode during start-up, affecting the ramp-up and the startuptime.
The maximum capacitance can be found in the datasheet.

To Oscilloscope+Vin++Lin

Battery

Cin

Current
Probe+Out

DC / DCConverter-Vin

Overcurrent Protection
To provide protection in a fault (output overload) condition,
the unit is equipped with internal current limiting circuitry andcan endure current limiting for an unlimited duration. At thepoint of current-limit inception, the unit shifts from voltage
control to current control. The unit operates normally once theoutput current is brought back into its specified range.

Load-Out

Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.47uF ceramic capacitor.
Scope measurement should be made by using a BNC
socket, measurement bandwidth is 0-20 MHz. Position theload between 50 mm and 75 mm from the DC/DC Converter.
+Vin+Out

Single Output
DC / DCConverter

Copper Strip
Cout-Vin-Out

Copper Strip+Vin+Out

Copper Strip

Dual Output
DC / DCConverter-VinCoutCom.

ResistiveLoad

The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the power module.
In applications where power is supplied over long lines
and output loading is high, it may be necessary to use acapacitor at the input to ensure startup.
Capacitor mounted close to the power module helps
ensure stability of the unit, it is recommended to use a goodquality low Equivalent Series Resistance (ESR < 1.0[ at 100KHz) capacitor of a 8.2uF for the 5V input devices, a 3.3uF forthe 12V input devices and a 1.5uF for the 24V and 48Vdevices.

Scope
ResistiveLoad

Copper Strip
Cout-OutScope

Input Source Impedance+Scope

Copper StripDC PowerSource-+Vin++Out

DC / DCConverter

LoadCin-Vin-Out

Design & Feature Considerations
Remote On/Off
Negative logic remote on/off turns the module off during alogic high voltage on the remote on/off pin, and on during a
logic low.
To turn the power module on and off, the user must supply
a switch to control the voltage between the on/off terminal andthe -Vin terminal.
The switch can be an open collector or equivalent.
A logic high is 2.7V to 15V.
A logic low is under 0.6 VDC or open circuit, drops downto 0VDC by 2mV/]The maximum sink current at on/off terminal during a logic
low is 1 mA.
The maximum allowable leakage current of the switch aton/off terminal= (under 0.6VDC or open circuit) is 1mA.

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MCW0CW03 Series
Output Ripple Reduction
A good quality low ESR capacitor placed as close aspracticable across the load will give the best ripple and noise
performance.
To reduce output ripple, it is recommended to use 3.3uF
capacitors at the output.
++VinSingle Output
DC / DCConverterDC Power
Source-+-Vin+Vin

Cout

Load-Out+Out
Dual Output
DC / DCCom.
Converter

DC Power
Source-+Out-Vin-OutCout

Load
Load

Cout

Thermal Considerations
Many conditions affect the thermal performance of thepower module, such as orientation, airflow over the moduleand board spacing. To avoid exceeding the maximum
temperature rating of the components inside the power
module, the case temperature must be kept below 90° C.
The derating curves are determined from measurements
obtained in an experimental apparatus.

Position of air velocity
probe and thermocouple
15mm / 0.6in

750mm / 2in

Air Flow

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MCW03 Series
Physical Characteristics

Mechanical Dimensions
21.8 [0.86]

2X2.54 5.08
[2X0.10] [0.20]

21.8*9.3*11.2mm
0.86*0.37*0.44inches

11.2 [0.44]

0.5 [0.02]
0.5[0.02]
2.0[0.08]:

Case Material:

Non-Conductive Black Plastic

3.2[0.13]

Case Size

Weight:4.8g

Flammability:

UL94V-03X2.54[3X0.10]1235678

2.7 [0.11]

9.3 [0.37]

Bottom View

0.25 [0.01]

20.8 [0.82]

0.50[0.02]

Tolerance

PinMillimeters

Inches

X.X{0.5

X.XX{0.02

X.XX{0.25

X.XXX{0.01{0.1{0.004

Pin Connections
PinSingle Output

Dual Output

1-Vin-Vin

2+Vin+Vin

3

Remote On/Off

Remote On/Off

5NC

NC

6+Vout+Vout

7-VoutCommon8

NC-Vout

NC: No Connection

8MINMAX

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