June 2004
LMS1585AEP/LMS1587EP
Enhanced Plastic 5A and 3A Low Dropout Fast
Response Regulators
General Description
Features
n Fast transient response
The LMS1585AEP and LMS1587EP are low dropout posi-
tive regulators with output load current of 5A and 3A respec-
tively. Their low dropout voltage (1.2V) and fast transient
response make them an excellent solution for low voltage
microprocessor applications.
n Available in Adjustable, 1.5V, and 3.3V versions
n Current limiting and thermal protection
n Line regulation
n Load regulation
0.005% (typical)
0.05% (typical)
The LMS1585AEP/87EP are available in adjustable ver-
sions, 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 12).
Applications
n Low voltage logic supplies
n Selected Military Applications
n Selected Avionics Applications
The LMS1585AEP/87EP circuits include a zener trimmed
bandgap reference, current limiting and thermal shutdown.
The LMS1585AEP/87EP series are available in TO-220 and
TO-263 packages.
ENHANCED PLASTIC
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Extended Temperature Performance of −40˚C to 125˚C
Baseline Control - Single Fab & Assembly Site
Process Change Notification (PCN)
Qualification & Reliability Data
Solder (PbSn) Lead Finish is standard
Enhanced Diminishing Manufacturing Sources (DMS)
Support
Ordering Information
PART NUMBER
LMS1585AIS33EP
LMS1585AISADJEP
LMS1587ISXADJEP
(Notes 1, 2)
VID PART NUMBER
V62/04639-01
V62/04639-02
V62/04639-03
TBD
NS PACKAGE NUMBER (Note 3)
TS3B
TS3B
TS3B
TBD
Note 1: For the following (Enhanced Plastic) version, check for availability: LMS1585ACT3.3EP, LMS1585ACTADJEP, LMS1585AIT1.5EP,
LMS1585AIT3.3EP, LMS1585AITADJEP, LMS1585ACS1.5EP, LMS1585ACS3.3EP, LMS1585ACSADJEP, LMS1585AIS1.5EP, LMS1585ACSX33EP,
LMS1585CSXADJEP, LMS1585AISX15EP, LMS1585AISX33EP, LMS1585ASXADJEP, LMS1587CT1.5EP, LMS1587CT3.3EP, LMS1587CTADJEP,
LMS1587IT1.5EP, LMS1587IT3.3EP, LMS1587ITADJEP, LMS1587CS1.5EP, LMS1587CS3.3EP, LMS1587CSADJEP, LMS1587IS1.5EP, LMS1587IS3.3EP,
LMS1587ISADJEP, LMS1587CSX3.3EP, LMS1587CSXADJEP, LMS1587ISX1.5EP, LMS1587ISX3.3EP. Parts listed with an "X" are provided in Tape &
Reel and parts without an "X" are in Rails.
Note 2: FOR ADDITIONAL ORDERING AND PRODUCT INFORMATION, PLEASE VISIT THE ENHANCED PLASTIC WEB SITE AT: www.national.com/
mil
Note 3: Refer to package details under Physical Dimensions
© 2004 National Semiconductor Corporation
DS200998
www.national.com