NCP81174中文资料Multi-Phase Synchronous Buck Controller with Power Saving Mode and PWM VID Interface数据手册ONSEMI规格书

描述 Description

The NCP81174 is a general−purpose up to four−phase synchronous buck controller. It combines differential voltage sensing, differential phase current sensing, and PWM VID interface to provide accurate regulated power for the computer or graphic controllers. It can receive power saving command (PSI) from processors and operates in single−phase diode emulation mode to obtain high efficiency in light load. Dual−edge multiphase PWM modulation ensures a fast transient response with minimum possible capacitors.

应用 Application

• GPU and CPU power
• Power Management for Graphics cards
• Desktop Computers
• Notebook Computers

简介

NCP81174属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由制造生产的NCP81174DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。