Best approach for power supplies

SteveSFX

Well-known member
Hello all

Trying to design a base PCB for my Teensy 4.1.
Needs to be 230v AC input, so my original thought was to use a couple of Vigortronix AC/DC converters such as:

https://uk.farnell.com/w/c/power-li...?brand=vigortronix&output-voltage-output-1=5v

I can add a 3.3v and a 5v one to my PCB and that gives me a pretty decent amperage base for the footprint (5v @ 1000mA and 3.3v @ 1272mA. But it does take up a lot of space.
Any other ideas?

I did think of a 230v to 12v PSU and using the little Polulu step down regs, but this doesn't save me any space (in fact, its slightly larger) and a very expensive way to do it.

https://www.pololu.com/category/131/step-down-voltage-regulators

Just wondered if anyone had any ideas. Ideally... 230v AC to 5v and 3.3v with at least an Amp per bus.

Thanks
 
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