SC427集成電路（IC）的線性穩(wěn)壓器控制器規(guī)格書PDF中文資料

SC427屬于集成電路（IC）的線性穩(wěn)壓器控制器。由Semtech Corporation制造生產(chǎn)的SC427穩(wěn)壓器 - 線性 + 開關(guān)此產(chǎn)品族中的產(chǎn)品用于構(gòu)建執(zhí)行 DC-DC 轉(zhuǎn)換或電壓調(diào)節(jié)功能的電路，采用的是開關(guān)模式和線性穩(wěn)壓器功能的組合。雖然具體的拓?fù)涓鞑幌嗤?，但此類產(chǎn)品的主要目的是將開關(guān)模式技術(shù)的效率優(yōu)勢與線性穩(wěn)壓技術(shù)的低噪聲特性結(jié)合在一起。

Description

The SC417/SC427 is a stand-alone synchronous buck power supply. It features integrated power MOSFETs, a bootstrap switch, and a programmable LDO in a space saving MLPQ-5x5mm 32-pin package. The device is highly efficient and uses minimal PCB area. It uses pseudo-fixed frequency adaptive on-time operation to provide fast transient response.

Features

Input voltage — 3V to 28V

Internal power MOSFETs — 10A

Integrated bootstrap switch

Smart power-save protection

Configurable 150mA LDO with bypass capability

TC compensated R

DS(ON) sensed current limit

Pseudo-fixed frequency adaptive on-time control

Designed for use with ceramic capacitors

Programmable VIN UVLO threshold

Independent enable for switcher and LDO

Selectable ultra-sonic power-save (SC417)

Selectable power-save (SC427)

Internal soft-start and soft-shutdown at output

Internal reference — 1 tolerance

Over-voltage/under-voltage fault protection

Power good output

Lead-free 5x5mm, 32 Pin MLPQ package

Fully WEEE and RoHS compliant

Applications

Notebook, desktop, tablet, and server computers

Networking and telecommunication equipment

Printers, DSL, and STB applications

Embedded applications

Power supply modules

Point of load power supplies