Datasheet > SC417_09

SC417_09

更新时间： 2024-09-26 11:55:35

品牌	Logo	应用领域
商升特 - SEMTECH		稳压器
页数	文件大小	规格书
30页	590K
描述
10A Integrated FET Regulator with Programmable LDO

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SC417_09 数据手册

SC417/SC427

10A Integrated FET Regulator

with Programmable LDO

POWER MANAGEMENT

Features

Description

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 V_INUVLO threshold

Independent enable for switcher and LDO

Selectable ultra-sonic power-save (SC417)

Selectable power-save (SC427)

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.

The SC417/SC427 supports using standard capacitor types

such as electrolytic or special polymer, in addition to

ceramic, at switching frequencies up to 1MHz. The pro-

grammable frequency, synchronous operation, and select-

able power-save provide high eﬃciency operation over a

wide load range.

Internal soft-start and soft-shutdown at output

Internal reference — 1% tolerance

Over-voltage/under-voltage fault protection

Power good output

The LDO output is programmable from 0.75V to 5.25V

using external resistors. The bias voltage for the device

can be supplied by the on-chip LDO when V_IN> 4.5V, or by

an external 5V supply. When a separate source is used as

the bias supply, the LDO can be programmed to provide a

diﬀerent voltage.

SmartDrive^TM

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

Additional features include cycle-by-cycle current limit,

soft-start, under and over-voltage protection, program-

mable over-current protection, soft shutdown, and select-

able power-save. The device also provides separate enable

inputs for the PWM controller and LDO as well as a power

good output for the PWM controller.

The input voltage can range from 3V to 28V. The wide

input voltage range, programmable frequency, and pro-

grammable LDO make the device extremely ﬂexible and

easy to use in a broad range of applications. Support is

provided for single cell or multi-cell battery systems in

addition to traditional DC power supply applications.

March 12, 2009

12 3 4 5 6 7...30

中文翻译

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与SC417_09相关器件

型号	品牌	获取价格	描述	数据表
SC417EVB	SEMTECH	获取价格	10A Integrated FET Regulator with Programmable LDO
SC417MLTRT	SEMTECH	获取价格	10A Integrated FET Regulator with Programmable LDO
SC418	SEMTECH	获取价格	EcoSpeedTM DC-DC Buck Controller with Programmable LDO
SC418EVB	SEMTECH	获取价格	EcoSpeedTM DC-DC Buck Controller with Programmable LDO
SC418ULTRT	SEMTECH	获取价格	EcoSpeedTM DC-DC Buck Controller with Programmable LDO
SC419	SEMTECH	获取价格	EcoSpeedTM DC-DC Converter with Integrated Boost Diode
SC419EVB	SEMTECH	获取价格	EcoSpeedTM DC-DC Converter with Integrated Boost Diode
SC419ULTRT	SEMTECH	获取价格	EcoSpeedTM DC-DC Converter with Integrated Boost Diode
SC41E6	INFINEON	获取价格	SIEMENS ANNOUNCES A SUB-MICTON GENERATION OF CHANNELLESS GATE-ARRAYS BASED ON THE PROVEN M
SC420	SEMTECH	获取价格	High Speed, Combi-SenseTM, Synchronous Power MOSFET Driver for Mobile Applications

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