Re: Regulator - 12vdc to 5vdc for Raspberry Pi
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Cort..
would you like to post the values of the caps and inductor
Dan
On Tuesday, January 5, 2021, 9:59:03 a.m. EST, Cort Buffington, N0MJS via groups.io <n0mjs@...> wrote:
I use the same ¡°mini 360¡± regulator that RB uses on the Pi-hat STM32-DVM on my STM32-DVM-MTR2K and STM32-DVM-MASTR3 modems. Scott has had really good luck in sourcing his, but I found that often times I get regulators with sub-par inductors. This also led me to realize that the input and output capacitors don¡¯t match the regulator¡¯s specifications. The chip in the Mini 360 does produce some noise, but it¡¯s greatly diminished when I change the input and output caps as well as inductors for the right values and known good components. Other than a couple of failures based on my own soldering skills, I¡¯ve had no failures with the mini 360 once the inductor is changed, and the noise produced is also reduced with the correct capacitors. Before that, I had¡. Too many failures.
I've got, had, 2-3 of those. After running a Pi and RA- interface for a month or two, one of them popped and smoked... tossed them. The PowerWerx USB Buddy gadgets haven't failed yet.? Still experimenting with the ~$4 adjustable buck-converter units as part of building up some 3S Lithium battery backup packs.
Cort Buffington 785-865-7206
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