Hello, TI team.
This is a question from momenta. In our project, we are using the LM5143-Q1 as the primary power supply, with a 12V input and a 5V output. The two output channels are connected in parallel to deliver 5V. During testing, we observed significant overshoot and ringing at the SW node, which increased with higher load currents. We tried adding a snubber circuit, which seemed to help reduce the ringing to some extent, but it had minimal effect on the first overshoot waveform. Are there any other methods we can use to mitigate the initial overshoot? Attached are our schematic and test waveforms.
