The XCL210C251GR-G Integrated Circuit is a ultra-small, high efficiency, synchronous, buck-type switching voltage regulator with low ripple and high PSRR performance, suitable for a wide range of applications. It is manufactured by Torex Semiconductor. It integrates an LPF (Inductor Electromagnetic), a 50mA inductor, a DC-DC converter, an output stage, and a control circuit in a small SOT25-6 package. Its output voltage is adjustable with an external resistor divider and can be set to any voltage from 0.5V to 6.0V. It has a wide supply voltage range from 3V to 18V. It also has soft-start feature and can support operation up to 1.2MHz switching frequency.