[Kevin Darrah] wanted to make a simple 3.3V regulator without using an ... and 4 1K resistors. The circuit isn’t going to beat out a cheap linear regulator IC, but for the low component count ...

By going contrary to conventional thinking, a design team devised a more-efficient regulator device for the DC-power path.

If you need, say, a 5V regulator, you grab a 7805, add a capacitor for stability, and send in enough voltage for the regulator to work with. Cheap and easy. However, the part is not without its ...