Our customer is considering to use TPS54388-Q1.
They found attached PH waveform in their circuit.
Absolute Maximum Ratings of PH is in datasheet P4 (http://www.ti.com/lit/ds/symlink/tps54388-q1.pdf).
PH 10-ns transient: –2V to10V
Their wavform is -1.48V and 21.8ns.
Question
1.Does this waveform cause any problem or does this wave form destroy this IC?
2.Please let us know why these waveform is found and what cause this ringing.
3.If you have any idea for improvement, please let us know.
They are usng FET probe.
regards,