LMR14006: LMR14006 PCB placement

Bob,

Looks pretty good! A small optimization could be to reduce the SW surface area. You can do this by moving C45 southeast, and slide the inductor closer to the IC. Move D26 to the right as well (C42 can move to the right a bit to make space).

Replace C59 with a smaller package (less inductance) and swap positions with C47 to reduce the current path loop for C59.

Also make sure the VOUT FB path does not get too close to SW under the inductor to help noise immunity.

-Sam

Bob,

Looks great! A few notes:

• If D26 can be moved down a bit, that could further reduce the SW node area. Could also cut the top-right and top-left corners to 45 degrees on the SW polygon to further reduce surface area.
• Move R26 so you can have the GND plane fill to the GND pin like before.
• Add a via on the GND plane near the C41 pad and another at the GND pad of C59.

-Sam

Bob,

That looks great!

-Sam