Datasheet > CS5257A-1

CS5257A-1

更新时间： 2024-09-28 06:49:27

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器
页数	文件大小	规格书
11页	269K
描述
7.0 A LDO 5−Pin Adjustable Linear Regulator

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CS5257A-1 数据手册

CS5257A−1

7.0 A LDO 5−Pin Adjustable

Linear Regulator

This new very low dropout regulator is designed to power the next

generation of advanced microprocessors. To achieve very low

dropout, the internal pass transistor is powered separately from the

control circuitry. Furthermore, with the control and power inputs tied

together, this device can be used in single supply configuration and

still offer a better dropout voltage than conventional PNP−NPN based

LDO regulators. In this mode the dropout is determined by the

minimum control voltage.

http://onsemi.com

TO−220−5

T SUFFIX

It is supplied in five−terminal TO−220−5 and D PAK−5 packages,

CASE 314D

allowing for the implementation of a remote−sense pin permitting

very accurate regulation of output voltage directly at the load, where it

counts, rather than at the regulator. This remote sensing feature

virtually eliminates output voltage variations due to load changes and

resistive voltage drops. Typical load regulation measured at the sense

pin is 1.0 mV for an output voltage of 2.5 V with a load step of 10 mA

to 7.0 A.

The very fast transient loop response easily meets the needs of the

latest microprocessors. In addition, a small capacitor on the Adjust pin

will further improve the transient capabilities.

Internal protection circuitry provides for “bust−proof” operation,

similar to three−terminal regulators. This circuitry, which includes

overcurrent, short circuit, supply sequencing and overtemperature

protection will self protect the regulator under all fault conditions.

The CS5257A−1 is ideal for generating a secondary 2.0 V − 2.5 V

low voltage supply on a motherboard where both 5.0 V and 3.3 V are

already available.

Tab = V

Pin 1. V

OUT

SENSE

2. Adjust

3. V

4. V

5. V

OUT

CONTRO

POWER

D PAK−5

DP SUFFIX

CASE 936AC

MARKING DIAGRAMS

TO−220−5

D PAK−5

5257A−1

AWLYWW

Features

• 1.25 V to 5.0 V V

at 7.0 A

OUT

CS5257A−1

AWLYWW

• V

Dropout < 0.35 V @ 7.0 A

POWER

Dropout < 1.1 V @ 7.0 A

CONTROL

• 1.5% Trimmed Reference

• Fast Transient Response

• Remote Voltage Sensing

• Thermal Shutdown

= Assembly Location

WL, L = Wafer Lot

YY, Y = Year

WW, W = Work Week

• Current Limit

• Short Circuit Protection

• Drop−In Replacement for LT1580

• Backwards Compatible with 3−Pin Regulators

ORDERING INFORMATION

†

Device

Package

Shipping

TO−220−5

CS5257A−1GT5

CS5257A−1GDP5

50 Units/Rail

D PAK−5

CS5257A−1GDPR5 D PAK−5 750 Tape & Reel

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

Publication Order Number:

September, 2006 − Rev. 10

CS5257A−1/D

12 3 4 5 6 7...11

中文翻译

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与CS5257A-1相关器件

型号	品牌	获取价格	描述	数据表
CS5257A-1/D	ETC	获取价格	7A LDO 5-Pin Adjustable Linear Regulator
CS5257A-1GDP5	CHERRY	获取价格	7A LDO 5-Pin Adjustable Linear Regulator
CS5257A-1GDP5	ONSEMI	获取价格	7.0 A LDO 5−Pin Adjustable Linear Regulator
CS5257A-1GDPR5	ONSEMI	获取价格	7.0 A LDO 5−Pin Adjustable Linear Regulator
CS5257A-1GDPR5	CHERRY	获取价格	7A LDO 5-Pin Adjustable Linear Regulator
CS5257A-1GT5	CHERRY	获取价格	7A LDO 5-Pin Adjustable Linear Regulator
CS5257A-1GT5	ONSEMI	获取价格	7.0 A LDO 5−Pin Adjustable Linear Regulator
CS-5257A-1T5	ETC	获取价格	Positive Adjustable Voltage Regulator
CS5258-1	CHERRY	获取价格	8A LDO 5-Pin Adjustable Linear Regulator
CS5258-1/D	ETC	获取价格	8A LDO 5-Pin Adjustable Linear Regulator

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