Part Number:LM25118
Hi,
Input voltage to LM25118 is around 12V, then the output voltage is 12V.
When the output loaded to about 1.1A, the high side & low side gate driver keep on adjusting duty cycle non stop.
Then it cause the output to generate 1V ripple (15KHz sinewave noise).
This chip suppose can be load with 3A, therefore I don't think it cause by max current rating.
May I know what is reason behind to cause this problem ?
Thanks