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The Vin and EN are connected together, the power on sequence is as follows.
the yellow waveform is Vout, blue waveform is Vin, why does Vout follow Vin when the EN pin is less than the threshold voltage? I think that Vout should be hold at 0 level.
EN is connected to the voltage divider circuit of the Vin, the power on sequence is as follows.
this sequence is consistent to my understanding.
Hello,
Thank you for reaching out.
Is it possible to share the circuit schematic and/or what is Vin, Vout and the resistor devider? It is really hard to read from the shared images.
Is the noise reduction capacitor being used? If so, has the board been cleaned thoroughly? Is it possible to re test this and clean the board using IPA and DI to make sure there is no resin residue on the PCB?
Best,
Edgar Acosta