Regulator

Once again this is hooked up as indicated in the MIC5319 datasheet. I finally am using the switch right, no more useless machine (and useless transistor) for me. As it turns out, that transistor was effectively built-in to the regulator, that's what the EN input is there for. This circuit supplies a nice 3.3V output on VCC to everything else. Previous versions had a current sensor, but this one doesn't, as I haven't gotten one of those to work yet.

It isn't visible in this image, but the bottom rail is GND.