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TPS2121: SWITCHING TIME ISSUE

Part Number: TPS2121

Tool/software:

Hello,

The voltage at IN1 is 5V, and the voltage at IN2 is 4.2V. During switching, I observed that the output voltage drops momentarily and then returns to normal after a certain period.

I believe that if the switching time is reduced, the voltage drop duration will be shortened, effectively resolving the issue.

Is it possible to achieve a switching time of less than 1µs in this case? If so, what modifications should be made to achieve this?

I would greatly appreciate the insights of experts on this matter.

Thank you always!