BUY LT3431EFE https://www.utsource.net/itm/p/1152201.html
LT3431 - High Voltage, 3A, 500kHz Step-Down Switching Regulator; Package: TSSOP; Pins: 16; Temperature Range: -40°C to 85°C
The LT3431EFE is a high-efficiency, low-noise, step-down switching regulator with an internal 2.5A, 40V power switch. It operates from an input voltage range of 4.5V to 40V and provides an adjustable output voltage of 0.8V to 38V. The LT3431EFE features a high efficiency of up to 95%, low quiescent current of only 10μA, and low noise of only 40μVRMS. It also features a programmable soft-start and a programmable frequency of 200kHz to 2MHz. The LT3431EFE is ideal for applications such as automotive, industrial, and consumer electronics. It is suitable for powering microprocessors, FPGAs, ASICs, and other low-voltage integrated circuits. It can also be used for powering LED lighting, battery chargers, and other low-voltage applications. (For reference only)