Voltage regulation circuit 12V to 5V in 5A range

[Demon]

...Have you checked how much extra cost is added by JLCPCB? ...

Not yet, I wanted to get as close to a "finalized design" before using JLCPCB's quote generator.

... I'd add an extra output capacitor for less noise and better operation without much cost. Parallel capacitors make for lower ESR also. ...

I didn't know that about the lower ESR.

EDIT the CAPS section

I just noticed the datasheet has a range of output capacitance at 5V from 25 to 100uF (table 4). So I just added 10uF and 1uF ceramics alongside the 47uF.

These guys have a nice bla-bla about "why there can be too much output capacitance on SMPS circuits":
https://www.cui.com/blog/understandi...citance-limits

... Nice design. You become an KiCad expert!

Ioannis

Thanks, but I can't really take credit for the design. I feel like Mr. Bean copying the test answers from the guy next to him. I really did put a lot of effort to do as close to what TI recommends.

As for "Kicad expert", that remains to be seen.

[Demon]

Well, if I'm going to have all that unused real-estate at the top, might as well do something with it:

- DC jack,
- power switch,
- multiple output headers,
- amp and volt test points.

It's all parts I have on hand, so it's not really costing me more. I don't see how it would disturb the cooling, since TI placed all the ventilation holes on the bottom section. It anything, it's extra cooling fins.




Now I just have to remember to slap a jumper on the amp test point for the circuit to work.