SC4210AIMSTRT

更新时间： 2024-09-27 13:01:59

品牌	Logo	应用领域
商升特 - SEMTECH		控制器
页数	文件大小	规格书
11页	286K
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数据手册

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SC4210AIMSTRT 数据手册

SC4210A

8-Pin N-FET Linear

Regulator Controller

POWER MANAGEMENT

Features

Description

The SC4210A linear regulator controller includes all the

features required for an extremely low dropout linear

regulator that uses an external N-channel MOSFET as

the pass transistor. The device can operate from input

voltages as low as 1.75V and can provide high current

levels, thus providing an efficient linear solution for cus-

tom processor voltages, bus termination voltages, and

other logic level voltages down to 0.5V. The onboard

charge pump creates a gate drive voltage capable of driv-

ing an external N-MOSFET which is optimal for low drop-

out voltage and high efficiency. The wide versatility of

this IC allows the user to optimize the setting of both

current limit and output voltage for applications beyond

or between standard 3-terminal linear regulator ranges.

On-board charge pump to drive external N-MOSFET

Input voltage as low as 1.75V to 5.5V

Duty ratio mode over-current protection

Extremely low dropout voltage

Low external parts count

Output voltages as low as 0.5V

MSOP-8 package

Applications

Telecom and networking cards

Industrial applications

Wireless infrastructure

Set-top boxes

Post regulated power supplies

The 8-pin controller IC features a duty ratio current limit-

ing technique that provides peak transient loading capa-

bility while limiting the average power dissipation of the

pass transistor during fault conditions.

The SC4210A is available in an MSOP-8 surface mount

package.

Typical Application Circuit

0.015

Vin = 3.3V

22µF

VDD

CAP

0.01

0.1

GND

COMP

FDB7030BL

VOUT

Vout = 1.8V @ 6Ap-k

39k

1.30k

0.01

C7opt.

10µF

24k

SC4210A

150pF

499

www.semtech.com

Revision: October 26, 2004

12 3 4 5 6 7...11

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SC4211HSTRT	SEMTECH	获取价格	暂无描述
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