Hi Experts,
Our customer is using our TPS53353 as the 12V to 1.2V power supply for their SoC Vcore, and found that it will see a output voltage drop when the load switched from light load to heavy load. We checked all the external circuits and actually the load is not very large, but no issues found related to this voltage drop. Can you kindly help to check what's possible reason for this issue? Thanks a lot!
Customer's application schematic is as below:
Some waveform we captured for your reference:
Customer's PCB layout is as below: