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Need helping figuring out noise and issues with TPS40210 AND QX9920 + LED

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MatCat:
This is the completed layout, let me know what you think before I send it off to JLC :P

MagicSmoker:
Looks better, but there is a slot in the ground plane underneath C6, C7 and C18. Also, don't place vias too close to SMT pads or solder will get sucked down into them during reflowing and the component might tombstone.

Oh, and are there no mounting holes, or are they just not shown?

MatCat:
I purposely put that slot there because of the feedback and current sense lines running for a short period on the bottom layer, and I didn't want the current from the voltage regulator current sense resistor flowing between those lines, and yeah mounting holes have been added since that pic :D

Apollyon25_:
Bit late to this party, but is there a reason you didn't simply use the schematic shown in Fig29 of the TPS40210 DS?

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