LMS1585AIS-1.5 National Semiconductor, LMS1585AIS-1.5 Datasheet

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LMS1585AIS-1.5

Manufacturer Part Number
LMS1585AIS-1.5
Description
IC,VOLT REGULATOR,FIXED,+1.5V,BIPOLAR,SIP,3PIN,PLASTIC
Manufacturer
National Semiconductor
Datasheet

Specifications of LMS1585AIS-1.5

Rohs Compliant
NO
© 2005 National Semiconductor Corporation
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

Related parts for LMS1585AIS-1.5

LMS1585AIS-1.5 Summary of contents

Page 1

... TO-220 Top View registered trademark of Linear Technology Corporation Pentium is a registered trademark of Intel Corporation PowerPC is a registred trademark of IBM © 2005 National Semiconductor Corporation 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 ...

Page 2

... LMS1587CT-ADJ LMS1587CT-1.5 LMS1587CT-3.3 LMS1587IT-ADJ LMS1587IT-1.5 LMS1587IT-3.3 0˚C to 125˚C LMS1585ACS-ADJ LMS1585ACSX-ADJ LMS1585ACS-1.5 LMS1585ACSX-1.5 LMS1585ACS-3.3 LMS1585ACSX-3.3 LMS1585AIS-ADJ LMS1585AISX-ADJ LMS1585AIS-1.5 LMS1585AISX-1.5 LMS1585AIS-3.3 LMS1585AISX-3.3 0˚C to 125˚C LMS1585ACT-ADJ LMS1585ACT-1.5 LMS1585ACT-3.3 LMS1585AIT-ADJ LMS1585AIT-1.5 LMS1585AIT-3.3 2 Transport Media NSC Drawing Rails Tape and Reel ...

Page 3

Simplified Schematic 3 10119714 www.national.com ...

Page 4

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Maximum Input to Output Voltage (V to GND) IN Electrical Characteristics Typicals and limits appearing in normal type apply for T tion temperature range for operation, 0˚C to 125˚C for commercial grade and −40˚C to 125˚C for industrial grade. ...

Page 5

Electrical Characteristics Typicals and limits appearing in normal type apply for T tion temperature range for operation, 0˚C to 125˚C for commercial grade and −40˚C to 125˚C for industrial grade. Symbol Parameter I Current Limit LMS1585A-ADJ/LMS1585A-3.3/LMS1585A-1.5 LIMIT V IN LMS1587-ADJ/LMS1587-3.3/LMS1587-1.5 ...

Page 6

Application Note OUTPUT VOLTAGE The adjustable version develops at 1.25V reference voltage between the output and the adjust terminal. As REF shown in Figure 1, this voltage is applied across resistor R1 to generate a constant current I1. ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted 3-Pin TO-263 NS Package Number TS3B 3-Pin TO-220 NS Package Number T03B 7 www.national.com ...

Page 8

... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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