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LM2672 Vin get -4V till ~1mikrosec. What will happen?

Richard Remport
Prodigy 20 points
Other Parts Discussed in Thread: LM2672

Hi colleagues,

I have a question. I have a card that contains LM2672 simple switcher Regulator. Unfortunately there is a noise on the Vin, so the Vin pin get -4V short time: ~1mikrosecond (at the switch on).

What will it happen? Will be my LM2672 damaged or ... it will be nothing happened, the IC will not work, and it will not  be damaged? Is ist any protection in the IC, if Vin get -4V?

I am waiting for your answer!

Br,

Richard