The LT1117CST-3.3#TRPBF is a low dropout (LDO) voltage regulator manufactured by Analog Devices, with a maximum current output of 800mA. The regulator is adjustable and fixed at 2.85V, 3.3V, and 5V. It is a tiny package and is designed to endure a wide temperature range and features ultra-low quiescent current and low noise. It is appropriate for use in a variety of applications, including battery-backed systems, digital cameras, PDAs, and various portable electronics. Its advanced protection circuitry includes current limit, reverse current, and thermal shutdown protection.