Datasheet
NDY Series
Isolated 3W Wide Input DC/DC Converters
KDC_NDY.F03 Page 3 of 4
www.murata-ps.com/support
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 C
IN Output Voltage COUT LOUT
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
COUT
CIN
- V
IN
+ V
IN
+ V
OUT
- V
OUT
NDY
COUT
CIN
- V
IN
+ V
IN
+ V
OUT
- V
OUT
L
OUT
NDY05 POWER DERATING CURVE
4.5
2
3
4
5
Input voltage (V)
Output Power (W)
1
0
56789