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

描述 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.

特性 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