Small 3.7V to 3.3V regulator (AP2112K-3.3TRG1)

Simple 3.3V regulator based on the AP2112K-3.3TRG1 that can output around 600mA. It consists of the regulator, aswell as four decoupling capacitors (100nF and 10uF). Since it has low dropout voltage you can use it to regulate voltage from a Li-Po or a Li-Ion battery to stable 3.3V that can be used for example to power an ESP8266/32. The components used in this project are commonly available and are almost always in stock.

To use this regulator, you need to short the jumper pad on the bottom with a little bit of solder. Otherwise - the chip won't be enabled.