SC4508集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF中文资料

SC4508属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由升特制造生产的SC4508DC-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。

Description

The SC4508 is a low voltage current mode switching regulator controller that drives a P-channel power MOSFET

with programmable switching frequency. It can be configured in either buck or buck boost (inverting) convert

ers. The converters can be operated from 2.7V to 15V input voltage range.

Features

Wide input voltage range 2.7V to 15V

Programmable output voltage

Programmable switching frequency up to 1.5MHz

Buck or buck boost(inverting) configuration

Current mode control with slope compensation

Very low quiescent current in shutdown mode

Accessible reference voltage

MLPQ-12 package

Applications

Low power point of use converters

Single or multiple output low power converters

Positive and/or negative output voltage

DSL cards

Graphic cards

I/O cards

Negative bias supplies