BUY MP2307 https://www.utsource.net/itm/p/5448279.html
3A, 23V, 340khz Synchronous Rectified Step-down Converter
Description: The MP2307 is a synchronous step-down DC-DC converter, capable of driving up to 3A of output current from input voltage of 4.5V to 28V. It integrates a high-side MOSFET and a low-side MOSFET, allowing for a compact solution size. Features: Input Voltage Range: 4.5V to 28V Output Voltage Range: 0.8V to 22V Output Current: Up to 3A High Efficiency: Up to 95% Low Quiescent Current: 10μA Soft-Start Over-Temperature Protection Over-Current Protection Short-Circuit Protection Adjustable Frequency Internal Compensation Programmable Soft-Start Programmable Over-Current Protection Programmable Over-Temperature Protection Programmable Frequency Programmable Soft-Start Programmable Over-Current Protection Programmable Over-Temperature Protection Programmable Frequency Applications: Automotive Electronics Industrial Power Supplies LED Lighting Portable Electronics Battery Powered Devices Power Management (For reference only)