The LD1117AG-1.8V-A is a SOT-223 RoHS linear voltage regulator manufactured by Unisonic. It is designed to provide a regulated output voltage of 1.8V with a maximum input voltage of 16V. It is available in a wide range of packages, making it highly suitable for a variety of applications including computer motherboards, USB power supplies, and portable equipment. It features an operating temperature range of -40°C to +85°C. It comes with extensive protection features including short circuit, overtemperature, and reverse-battery protection and can control the output current up to 800 mA. Additionally, it offers low dropout voltage, built-in thermal overload and current limit protection, an internal thermal shutdown, and industry-standard pinout. The LD1117AG-1.8V-A is an excellent choice for providing a stable output voltage in a wide range of applications.