The NCP1402 series is a single chip micro power boost DC-DC converter designed for applications that power portable devices through one or two batteries. This series of devices are designed to start with a battery voltage of 0.8V, can work with a voltage below 0.3V, only three external components, can simply achieve the function of high efficiency converter, when Vin = 2.0V, VOUT = 3.0V, the output current can reach 200mA.