BUY LM2665M6 https://www.utsource.net/itm/p/11224006.html

Description: The LM2665M6 is a step-up DC-DC converter IC from Texas Instruments. It is a high-efficiency, low-noise, low-dropout, fixed frequency, step-up DC-DC converter. Features: Input voltage range: 2.7 V to 5.5 V Output voltage range: 3.3 V to 28 V Maximum output current: 1.5 A Switching frequency: 1.2 MHz Low quiescent current: 5 μA High efficiency: Up to 95% Low dropout voltage: 100 mV Thermal shutdown protection Short-circuit protection Over-current protection Applications: Portable electronics Battery-powered systems Automotive systems Industrial systems LED drivers Telecom systems (For reference only)