RC4227FD is an integrated circuit from ON Semiconductor, used as a Low Drop Out (LDO) regulator. The LDO's purpose is to maintain a lower voltage drop than a standard linear regulator by using an internal p-channel DMOS transistor, reducing power dissipation and increasing efficiency. Its wide input voltage range allows it to be used with both DC and AC power supplies. Additionally, it offers low quiescent current and a wide operating temperature range, making it suitable for use in a variety of sensitive applications. The RC4227FD is single-channel, rated at a maximum output current of 1A, and includes build-in overtemperature protection, output voltage tracking and short-circuit protection.