lm2931 reg test

Thread Starter

seajay

Joined Mar 9, 2013
5
Hi

Does anybody know the best way to test a low voltage regulator, the full details on mine are as follows

HMO2AH
LM2931
AT5.0

This is fitted on a pcb for a range rover electric windows and this board is a known failure.

Cheers
 

Jony130

Joined Feb 17, 2009
5,487
Simply measure the output voltage on the output leg. The voltmeter should indicate something around 5V. Also measure the input voltage (must be larger then 5.6V).
 

Thread Starter

seajay

Joined Mar 9, 2013
5
Ok thanks for that I will give that a try do you know where I can get a data sheet for the pin configuration
 
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