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TPS53015: About the diode in evaluation modules

Part Number: TPS53015
Other Parts Discussed in Thread: , TPS51215A, TPS51916

Hi, support team

My customer has the questions as follow:

There's an D1 BAT54XV2T1 in TPS53015EVM-126.
According to the follow post, I know that it clamps the negative voltage on the SW pin and it's best not to be removed.

In addition to TPS53015, we also discussed the circuits using TPS51215A and TPS51916.
However, in the circuit diagrams of the user's Guide (sluuc 79, slu526) of the evaluation modules of TPS51215A and TPS51916,
the diode equivalent to D1 of TPS53015 can not be found.

Thanks so much.

Best regards,