The LP3980-18B5F is a Low Dropout Regulators (LDO) which is a linear voltage regulator that provides a precise output voltage regulation with low dropout voltage. This SOT23-5 RoHS device is manufactured by LOWPOWER and features an adjustable output voltage ranging from 1.2V to 18V. It has a low quiescent current and low noise performance. The LP3980-18B5F also features an internal over-temperature protection circuit, an internal short-circuit protection circuit, and an adjustable current limit. This LDO can offer up to 460 mA output current when powered by an input voltage ranging from 2.5V to 20V.