Datasheet > EZ158X

EZ158X

更新时间： 2024-11-22 23:51:27

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EZ158X 数据手册

DUAL INPUT

LOW DROPOUT REGULATOR

EZ1580/EZ1581

EZ1582/EZ1583

TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com

February 26, 1999

DESCRIPTION

ORDERING INFORMATION

The EZ158X family of high performance positive

voltage regulators are designed for use in applications

requiring very low dropout voltage at 7, 5, 3 and 1.5

amps. When supplying 2.5V on motherboards where

both 5V and 3.3V supplies are available, the superior

dropout characteristics of the EZ158X result in reduced

heat dissipation compared to regular LDOs, thus

allowing heat sink size reduction. Additionally, the

EZ158X provides excellent regulation over variations in

line, load and temperature. Remote sense operation

allows compensating for trace, connector and other

resistive losses.

DEVICE

PACKAGE I_OUT(A)

V_OUT(V)

EZ1580CT-X.X

EZ1581CT-X.X

EZ1582CT-X.X

EZ1583CT-X.X

EZ1580CM-X.X

EZ1581CM-X.X

EZ1582CM-X.X

EZ1583CM-X.X

TO-220,

5-pin

See Note (1)

1.5

TO-263,

5-pin⁽²⁾

See Note (1)

Outstanding features include very low dropout

performance at rated current, fast transient response,

remote sense, internal current limiting, thermal

shutdown and safe operating area protection of the

output device. The EZ158X is a five terminal

adjustable voltage regulator available in the popular 5

pin TO-220 and TO-263 plastic packages.

1.5

Notes:

(1) Where -X.X denotes voltage options. Available

voltages are: 1.5V and 2.5V. Leave blank for ad-

justable version (1.3 to 5.7V).

(2) Add suffix ‘TR’ for tape and reel (TO-263).

FEATURES

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol Maximum Units

•= ^{540mV dropout @ 7A in dual supply mode}

(EZ1580)

Input Voltage

V_POWER

V_CONTROL

•= Remote sense operation

•= Fast transient response

•= 0.5% initial accuracy

V_P

V_C

13.2

Power

Dissipation

P_D

Internally

Limited

•= 5 Pin TO-220 and TO-263 packages

APPLICATIONS

Thermal Resistance

Junction to Case

EZ1580/1 TO-220

EZ1580/1 TO-263

EZ1582/3 TO-220

EZ1582/3 TO-263

•= ^{Microprocessor supplies}

°C/W

θ_JC

•= Split plane microprocessor supplies

•= Pentium® Processor P54C and P55C

•= PowerPC™ 603/604EV

•= AMD5_K86™, AMD K6

Thermal Resistance

Junction to Ambient

EZ158X TO-220

EZ158X TO-263

BLOCK DIAGRAM

°C/W

°C

θ_JA

Operating Junction

Temperature Range

T_J

0 to 125

Storage Temperature

Range

T_STG

-65 to 125

260

°C

Lead Temperature

(Soldering) 10 Sec.

T_LEAD

Pentium is a registered trademark of Intel Corporation.

PowerPC is a trademark of IBM.

AMD5_K86 and K6 are trademarks of Advanced Micro Devices.

652 MITCHELL ROAD NEWBURY PARK CA 91320

12 3 4 5

中文翻译

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