Quote Originally Posted by Ioannis View Post
I would not trust those chinese modules for serious projects. Rather design your own based on the TI or Microchip App. Notes for you specific needs. ...
Well, that's disappointing. I looked only at Mouser, the IC alone is over $6 and most of the discrete components are not available. I don't know enough if I can replace them with components.

8V–24V to 5V/3A Buck Converter, through-hole, Page 7

https://www.microchip.com/content/da.../AN15-APID.pdf


And the SMD designs had a LOT less power (my first choice, to have them fully assembled by JLCPCB). Microchip's app note dates from March 2001, gonna check out TI...