The A7431MP8R from AiT Semiconductor is a Buck DC-DC Converter that converts an input voltage of 10 - 36 V to an output voltage of up to 12 V. It has a switching frequency of 125 kHz and an efficiency of up to 91%. This converter integrates low-equivalent series resistance (ESR) ceramic capacitors to provide stability and allow low-profile designs. It offers constant current control without an additional current sensing resistor thereby improving efficiency and lowering cost. This DC-DC converter benefits from resistor programmable current limit from 1.5 A to 3.5 A and up to 0.5 V excellent cable voltage drop compensation. It features integrated soft start, thermal shutdown, and cycle-by-cycle current limit. This RoHS-compliant buck converter is available in a surface-mount package that measures 5.10 x 4.00 mm and is ideal for car chargers/adaptors, rechargeable portable devices, and general-purpose constant current, constant voltage supply applications.