The LT1117CM-5#PBF Voltage Regulator with Low Dropout (LDO) technology is manufactured by Analog Devices and is a 5V monolithic integrated circuit (IC). It is a type of three-terminal linear regulator and provides a stable 5V of regulated output voltage with a maximum dropout voltage of 200mV. The IC has a high output current up to 800mA, a wide operating input voltage range from 4.5V to 20V, and a temperature range of -40°C to 125°C. It is ideal for use in applications such as personal computers, cellular phones, and STBs, which require a small physical package, low current consumption, and high accuracy. It also features thermal shutdown protection, short-circuit protection, and improved line and load transient response.