LMR33630A, my built circuit doesn't match the expected output
You appear to be using a nice beefy inductor, so you've avoided that common noob mistake. 

But layout is important for these switchers and yours doesn't much resemble the LMR33630EVM - particularly the trace between the IC and inductor, and inductor &amp; output filter caps (which should all be short &amp; fat).
Similarly, your input caps are too "far away" from the IC - in particular look at the path between pin-1 and the ground pins on those caps - it goes all the way around the edge of your board. Lots of vias would probably help a bit here, but rearranging things to bring them physically closer together with more direct routing would help more.