Hi,
The attached pdf is the schematic for the 3.3V output application.
My problem is no output, I had to do some troubleshooting below, but it's still not working,
1. Ensured the output(VDD_3V3_SYS) doesn't short to GND or the other net.
2. Removed R29 and C26.
3. BUCK_3V3_EN is a DC 3.3V signal.
4. Increase the OCP by chang the R25 to 56K ohm.
5. Chang the L6 to 2.2uH(IDC is 3.7A/ DCR is 4.7m ohm)
I have also attached the DRVH & DRVL waveform for your reference.
The DRVH keeps low and DRVL keeps 5V after a while.
Could you help to figure out what the problem is?
Sincerely
webber