The DI78L05UAB is a SOT-89 voltage regulator manufactured by Diotec. It is a low dropout (LDO) device, providing a regulated output voltage of 4.8V to 5.2V, with an output current of up to 6mA. Worst-case total quiescent current is typically around 10uA, and shutdown current is typically 0.1uA. It features excellent load and line regulation, and is protected against reverse current, and has Short-Circuit Protection, Over-Voltage Protection, Over-Temperature Shutdown, and Current limit protection. The device has an input voltage of up to 30V.