AP8855A Overview
The AP8855A is a low-dropout linear regulator that operations in the input voltage range from +2.5V to +9.0V and delivers 500mA output current. The output voltages range of the adjustable type is from 1.22V to 5.0V. The AP8855A consists of a 1.22V bandgap reference, an error amplifier, and a P-channel pass transistor.