The TPS77033DBVR with LDO Voltage Regulators 50mA LDO is a low-noise, low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. The device is designed to provide a stable output voltage over a wide range of operating temperatures and loads for a wide range of applications, including cell phones, digital cameras, and PDAs. The device operates from a 1.8V to 5.5V input range and can generate a fixed output voltage of 1.5V, 1.8V, 2.5V, and 3.3V with a guaranteed output noise of less than 100 µVrms. The LDO regulator also offers fast transient response with a low dropout voltage, low ground current, and high power supply rejection ratio, making it ideal for portable applications. The device is available in an SOT-23-5 and an MSOP-10 package.