SC4508集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關式控制器規(guī)格書PDF中文資料

SC4508屬于集成電路（IC）的PMIC-穩(wěn)壓器-DCDC開關式控制器。由Semtech Corporation制造生產的SC4508DC-DC 開關控制器PMIC（電源管理集成電路）DC 到 DC 開關式控制器是用于高效率電路的穩(wěn)壓 IC，其配置為生成高于（突升或步升）或低于（突降或步降）輸入電源的輸出電源電壓。其他拓撲結構可能包括：降壓-升壓、反激、正激、Cuk、SEPIC、全橋、半橋和推挽式。這些器件不同于需要最小電壓并“燒盡”多余電壓的線性穩(wěn)壓器。

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