If you need, say, a 5V regulator, you grab a 7805 ... The schematic notes you can also replace the IC with an MT2492. With a right-angled header, you can swap the board in for a standard 78XX.

Yes, you’ll still need to use a regulator if the rest of your project is running at 5V, but if the pins are 5V tolerant, interfacing the ESP8266 with a variety of hardware becomes very easy.

Based on SMIC 0.18μm 3.3v/1.8v Logic process, this design of Low-Dropout (LDO) regulator is to provide both 3.3V and 1.8V supplies that are regulated from the single 5V input. The maximum output ...

Integrated circuit (IC) linear voltage regulators use an active pass element to reduce the ... use an NPN Darlington configuration and have a dropout voltage between 1.5V and 2.2 V. Low dropout (LDO) ...