Other Parts Discussed in Thread: UCC256303,
My customer used UCC256403 to replace UCC256303 and encountered some problems.We have calculated the line parameters through the design tool. The UCC256403 can work but it will crash when the light load is 0.3A (the output voltage waveform is as follows), but the output voltage is normal at 0A, I have tried to adjust the BW and LL/SS configuration is still the same, is there a way to solve this problem, thanks
The output voltage waveforms for design tool and 0.3A are provided below for your reference.
