The RT9073A-18GQZ is a Low Dropout Regulator (LDO) with a ZQFN-4L RoHS package manufactured by Richtek. This regulator is designed for applications where efficient voltage regulation is required. It features low dropout voltage, high PSRR (Power Supply Rejection Ratio) and low output noise performance, making it ideal for a wide range of applications such as industrial control systems, LED lighting, consumer electronics, medical equipment, and automotive supplies. Its wide input voltage range of 2.5V to 5.5V ensures robust operation over a wide range of load currents, and its low dropout voltage ensures high efficiency and power savings. The Richtek RT9073A-18GQZ also features an extremely low quiescent current for operation in standby modes, and its high PSRR and low output noise make it an ideal choice for noise sensitive applications. This regulator is also available in a RoHS compliant E-pad package.