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TPS62480: Undershoot on SW Node

Russell Wetherley1
Expert 4255 points
Part Number: TPS62480
Other Parts Discussed in Thread: TPS62866, TPS62869

Team,

I have a customer who is observing a negative voltage on the SW node.  This is of course standard for a sync buck.  However, we don't specify the transient undershoot in the DS.  Usually a DS will show a 10ns undershoot voltage minimum.  Is there a reason we don't have this on the TPS62480?

:

Thanks!

Russell