Re: Voltage rating of LM317

pjdd@xxxxxxxxxxxxxx wrote:


Mike Monett wrote:
pjdd@xxxxxxxxxxxxxx wrote:

Can the LM317 be safely used with an
input of, say 45V and a filtered output of 12V ?

Ask yourself this question - what would happen if the cap shorted?

That's obvious. But that's a sustained fault condition.
I'm talking about a momentary initial spike, under which
many devices can withstand levels that exceed their
continuous max ratings.

See SOA

Regards,

Mike Monett

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