LM338 power supply pcb, I want to make on for personal use

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Someone told me how to remove the layers from the heatsink and now I can do a full ground plane. I also made a 3d rendering of the board so I have an idea on how it will look like. Pretty neat!
I will probably get some tantalum capacitors on the ADJ and output but for the test it's nice.
 

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A few comments:

- Think in terms of power planes. There's no reason your positive power traces should be so much smaller than the ground traces.

- There's an optimal way to connect r1 and r2 for optimal performance: r1 should be connected as close as possible to the output pin of the reg, not sharing the output track (or as little as possible) and the ground side of r2/c5 should not be tied to the power groundplane but by a dedicated track directly to the gnd ouput terminal.
 
A few comments:

- Think in terms of power planes. There's no reason your positive power traces should be so much smaller than the ground traces.

- There's an optimal way to connect r1 and r2 for optimal performance: r1 should be connected as close as possible to the output pin of the reg, not sharing the output track (or as little as possible) and the ground side of r2/c5 should not be tied to the power groundplane but by a dedicated track directly to the gnd ouput terminal.


You mean like this?
 

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