NDY Series

Isolated 3W Wide Input DC/DC Converters

KDC_NDY.F02 Page 3 of 4

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RoHS COMPLIANCE INFORMATION

This series is compatible with RoHS soldering

systems with a peak wave solder temperature of

300ºC for 10 seconds. The pin termination finish

on this product series is Bright Tin. The series

is backward compatible with Sn/Pb soldering

systems.

For further information, please visit www.murata-ps.com/rohs

APPLICATION NOTES

Recommended input & output capacitors

Although these converters will work without external capacitors, they are necessary in order to guarantee the full parametric performance over the full line and load

range. All parts have been tested and characterized using the following values and test circuit.

Input Voltage

Output Voltage

5V, 12V

100μF, 25V (0.25Ω at 100KHz)

3.3V

100μF, 25V (0.25Ω at 100KHz)

MPS# - 24100C

24V, 48V

10μF, 100V (1.5Ω at 100KHz)

5V, 12V, 15V

Not required

Test circuit, 5V, 12V and 15V output

Recommended circuit for reduced ripple 3.3V output

Output load

The minimum rated load across the whole input voltage range is 25% of the full load output. It is important to take care that the load does not fall below this as the output ripple

will greatly increase. While this condition will not harm the device the resultant increase in output ripple could cause customers’ application to malfunction.

NDY

- V

IN

+ V

IN

+ V

OUT

- V

OUT

NDY

- V

IN

+ V

IN

+ V

OUT

- V

OUT

L

OUT

NDY05 POWER DERATING CURVE

4.5

2

3

4

5

Input voltage (V)

1

0

56

7

8

9