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LM5122 Vin connect Vout

Hi

I have some question from customer about the following configuration.

Vin pin is connected to Vout after startup. (Vin pin is connected power supply rail (= real Vin line) when it startup.)

Do you have any concerns about the above configuration?

I wonder the CSx pin operation affects if the Vin pin is high voltage (e.g. 11V) and real Vin line is lower voltage (e.g 3V).

Regards,

Koji Hamamoto