Murata DC DC converter 5v 2w

Part number 811-3183-1, I have tested 5 different units and I get the same result on all of them. According to the spec sheet, these converters will take DC voltage of 10.8 to 13.2 volts dc and output a regulated 5.0 vdc. We always get approximately 9.05 to 9.15

volts dc. Seems simple but not as expected.
Would appreciate any ideas, thanks.

Hi Michael1,

Welcome to the community!

What resistance load do you have on the converter during your test?

The datasheet indicates you need a minimum of 10% max capacity, I believe the minimum would be 40mA.

That would be a 125 Ohm resistor on the output to ground. Any resistor between 15 Ohms and 120 Ohms would work for your test.

I really appreciate your response. When I increased the load, I was able to get the voltage down too an acceptable level.
Thanks again for the extremely fast reply.

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