LMS1585AIS-3.3 National Semiconductor, LMS1585AIS-3.3 Datasheet

LMS1585AIS-3.3

Manufacturer Part Number

LMS1585AIS-3.3

Description

IC,VOLT REGULATOR,FIXED,+3.3V,BIPOLAR,SIP,3PIN,PLASTIC

Manufacturer

National Semiconductor

Datasheets

1.LMS1585AIS-3.3.pdf (8 pages)

2.LMS1585AIS-3.3.pdf (8 pages)

Specifications of LMS1585AIS-3.3

Rohs Compliant

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Bonase Electronics (HK) Co., Limited

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LMS1585A/LMS1587

5A and 3A Low Dropout Fast Response Regulators

General Description

The LMS1585A and LMS1587 are low dropout positive regu-

lators with output load current of 5A and 3A respectively.

Their low dropout voltage (1.2V) and fast transient response

make them an excellent solution for low voltage micropro-

cessor applications.

The LMS1585A/87 are available in adjustable versions,

which can set the output voltage with only two external

resistors. In addition, they are also available in 1.5V and

3.3V fixed voltage versions (Note 9).

The LMS1585A/87 circuits include a zener trimmed bandgap

reference, current limiting and thermal shutdown.

The LMS1585A/87 series are available in TO-220 and TO-

263 packages.

Typical Application

Connection Diagrams

LT is a registered trademark of Linear Technology Corporation

Pentium is a registered trademark of Intel Corporation

PowerPC is a registred trademark of IBM

Top View

TO-220

DS101197

10119736

Features

n Fast transient response

n Available in Adjustable, 1.5V, and 3.3V versions

n Current limiting and thermal protection

n Commercial temp. range

n Industrial temp. range

n Line regulation

n Load regulation

n Direct replacement for LT

Applications

n Pentium

n PowerPC

n Other microprocessor supplies

n Low voltage logic supplies

™

processor supplies

supplies

Top View

TO-263

10119701

™

1585A/87

10119735

0.005% (typical)

−40˚C to 125˚C

0.05% (typical)

www.national.com

0˚C to 125˚C

June 2005

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