u/Finnlukas

Hey,

I'm currently working on a switching regulator board based on the TPS54202. I basically took the reference circuit from the datasheet and tried to stick as closely as possible to the suggested layout example. The concept is that power enters through the 3-pin connector at the bottom (in my case likely mostly 12V) and gets regulated down to 3.3V and outputted through the same connector.

I don't have any prior experience dealing with EMI. Does this board look like it should work as is? Is the SW copper pour too small? Are the vias on the SW pin of the IC sufficient? And is the connection between the SW pin and the copper pour with the vias big enough?

Thanks in advance for any feedback!