Hi,
We measure Vout waveform when turn off with full load condition and get the waveform with bump as below.
CH1:Vin CH2:EN CH3:Vout
After install 2.2uF cap on PC54 for EN, the symptom is gone. Please see below:
Can we add cap on EN?
Why there's bump voltage after EN low? Looks like it related to Vin voltage?