Hi, my customer design a circuit according to webench simulation as below:
But the output will not be stable.
yellow- boot, purple- ph, green- Vout.
It looks like to be Vout is gradually growing, and then at Vout=4V, the duty cycle is 100%, and then (BOOT-PH) voltage decrease, then high side FET turns off and Vout decrease.
Do we have any way to keep it stable with 4.8V to 4V converter?
If TPS54331 can't meet the requirement, do we have any other devices can meet the requirement? The input voltage range should be larger than 24V.
