Hi team,
Abnormal Vout waveform has been observed, in which the interfere noise is synchronous with SW frequency, as below.
I think it should be caused by the bad layout.(One layour PCB)
I have tried to change the placement of Cin and Cout, and even do some change about the GND. But no improvement.
Would you please give some suggestion about how to verify this problem on the current PCB board.
I could send you the sch and layout by email.
Thanks.
yellow: Vout
purple: SW
