Hi Sir,
My customer simulate TPS54528 on TI's EVM board, but have one issue, at 20mA load occur audio noise, source from inductor, waveform as below FIG.
Green is current
Blue is PWM
Currently increase inductance from 3.3uH change to 10uH, can solve this issue, i know this method can decrease peak current, so I also need attention what parts impact performance?
if you have better solution, please advise me, thanks.