Tool/software:
Hello：
When using the TPS53355DQPT chip, it was found that there was no voltage output. The circuit was 12V-5V. The output waveform of the LL pin was abnormal. The picture is in the attachment. Please check it. Please also help locate the problem. The circuit diagram is also in the attachment. In addition, the chip itself is not hot, and there is no obvious short circuit in the back-stage measurement. Thank you!!!
