BUY LM2577N-12 https://www.utsource.net/itm/p/387370.html
SIMPLE SWITCHER Step-Up Voltage Regulator
Description: The LM2577N-12 is a monolithic integrated circuit designed to provide all the active functions for a step-up (boost), flyback, forward or SEPIC switching regulator.
Features:
* Wide input voltage range: 4.5V to 40V
* Output voltage range: 1.23V to 37V
* Maximum output current: 3A
* Internal frequency compensation
* Internal soft-start
* Internal short-circuit current limit
* Internal thermal shutdown
Applications:
* Portable electronic devices
* Battery-powered systems
* Automotive systems
* Industrial systems
* Telecom systems
* LED lighting systems
(For reference only)
