BUY LM2596HVS-ADJ https://www.utsource.net/itm/p/382172.html
SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator
Description: The LM2596HVS-ADJ is a monolithic integrated circuit in a TO-263 package. It is a step-down switching regulator with an adjustable output voltage.
Features:
Output voltage adjustable from 1.23V to 37V
Output current up to 3A
High efficiency up to 96%
Low ripple and noise
Internal over-temperature protection
Internal short-circuit protection
Internal current limit
Applications:
Battery-powered systems
Automotive electronics
Portable electronic devices
LED lighting
Telecom and networking systems
(For reference only)