RT9069-33GQU is a low dropout (LDO) linear voltage regulator manufactured by Richtek. It has an ultra-small UDFN-6 1.6x1.6 surface mount package, and is compliant with RoHS requirements. It offers an output voltage range of 0.8V to 6V, current limit of 1A, and a high PSRR of 80dB at 1KHz. The input voltage range is 2.7V to 5.5V, with a thermal shutdown temperature of 165°C. It has a low quiescent current of 1uA, fast transient response, output ripple rejection of 80dB and low noise of 10uVRMS. It is suitable for applications such as home appliances, office automation, industrial, communication systems, portable devices, and battery-powered devices.