He wound up using two common NPN transistors and 4 1K resistors. The circuit isn’t going to beat out a cheap linear regulator IC, but for the low component count, it is actually pretty good.

That’s a classic linear regulator like a 7805 ... In this installment of Circuit VR, we’ll look at a simple buck converter — that is a switching regulator that takes a higher voltage ...

A subset of linear voltage regulators is a class of circuits known as low dropout (LDO) regulators. This paper explains the fundamentals of LDOs and introduces Vidatronic’s LDO technology which solves ...

The agileLDO is a linear low-dropout voltage regulator (LDO) providing precision and programmable ... Whilst the low noise and high PSRR lends itself to powering noise-sensitive analog circuits.