BUY TPS51123 https://www.utsource.net/itm/p/1913668.html
Dual-Synchronous, Step-Down Controller with Out-of-Audio? Operation and 100-mA LDOs for Notebook System Power
TPS51123 is a synchronous buck controller from Texas Instruments. It is a high-efficiency, low-cost, single-channel synchronous buck controller with integrated high-side and low-side MOSFET drivers. It is available in a 24-pin QFN package. Description: The TPS51123 is a high-efficiency, low-cost, single-channel synchronous buck controller with integrated high-side and low-side MOSFET drivers. It is designed to support a wide range of input voltage ranges and output voltages, and is optimized for low-cost, high-efficiency DC/DC converter applications. The TPS51123 features a programmable switching frequency up to 1.5 MHz, allowing for small external components and a small solution size. Features: Integrated high-side and low-side MOSFET drivers Programmable switching frequency up to 1.5 MHz Programmable soft-start Programmable over-current protection Programmable over-voltage protection Programmable under-voltage lockout Programmable dead-time Programmable soft-stop Internal compensation Internal voltage reference Internal oscillator Thermal shutdown Applications: Point-of-load (POL) DC/DC converters Notebook and desktop computer power supplies Set-top box power supplies LCD TV power supplies Networking and telecommunications equipment power supplies Automotive power supplies (For reference only)