The LOWPOWER LP3985-25B3F is a three-terminal, low-dropout (LDO) regulator in a SOT23-3 package that is RoHS compliant. It is adjustable over a wide output voltage range of 1.25 V to 36 V. It has an output current up to 1 A and a 2.1 V reference voltage. The device features a low shut-down current, high power supply rejection ratio, low dropout voltage, and thermal shutdown protection. It is especially designed for low noise applications, and the current limit and thermal shut-down protection provide high reliability and operational safety. The device is suitable for battery applications such as DVD players, mobile phones, audio amplifiers, and power management applications.