BUY LM2574M-5.0P https://www.utsource.net/itm/p/1767208.html
SIMPLE SWITCHER? 0.5A Step-Down Voltage Regulator
Description: The LM2574M-5.0P is a monolithic integrated circuit in a SOP (Small Outline Package) from National Semiconductor. It is a step-down switching regulator with a maximum output current of 5A. Features: Input voltage range: 4.5V to 40V Output voltage range: 0.8V to 37V Output current: 5A Switching frequency: 150kHz Internal soft-start Internal over-temperature protection Internal current limit Output voltage accuracy: ±2% Low quiescent current Thermal shutdown Applications: Automotive Industrial Telecommunications Computer peripherals Battery powered systems (For reference only)