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TPS62090-Q1: Will the specification of switching note (TPS62090-Q1)

Part Number: TPS62090-Q1

Hi Ti member,

About the switching note of SW output, whether have a spec to definition the overshoot & undershoot?

I know datasheet have SW(max) = Vin +0.3(V) / SW(min) = -0.3(V) in Absolute Ratings table. but it is correct spec for switch note?

and what will happen to the output voltage if the switching note is too high?

Thanks and best regards,
Bruce Hsin
Hardware Engineer

  • Hi Bruce,

    the datasheet specification shows the DC ratings. During operation at the switching transients you will see higher voltages which are related to normal operation. Those are normal and expected. If your design follows the layout recommendations in the datasheet or in the EVM users guide it should be ok. If you do a poor layout with high parasitic inductances in critical loops the switching can cause transient voltages which can damage the IC.

    Best regards,

    Juergen