The ME2188A50M3G is a DC-DC converter manufactured by Micro One. It comes in a SOT23-3 package, and is RoHS compliant. The ME2188A50M3G is a step-down switching regulator with an input voltage range of 2.7-5.5V and a continuous output current capacity up to 100mA. It also features high efficiency, low ripple, low quiescent current, adjustable output voltage, and programmable soft-start functionality. It is suitable for use in a range of applications such as portable power devices, communication, consumer, and industrial electronics.