Wow! You did a lot of work!
I am pretty sure that the extra layers TI suggest are for less noise ad better heat dissipation. Have you checked how much extra cost is added by JLCPCB?
In general if you want/need to make the board smaller, you can move all componets to the left, connector closer to the inductor and the right board edge also moved to the left. I don't see why this pcb needs to be that large. Saves cost also I guess.
I'd add an extra output capacitor for less noise and better operation without much cost. Parallel capacitors make for lower ESR also.
Nice design. You become an KiCad expert!
Ioannis
Bookmarks