LMS1587   
3A Low Dropout Fast Response Regulators 		Click link to Download

Features

Fast transient response

  

Available in Adjustable, 1.5V, and 3.3V versions

  

Current limiting and thermal protection

  

Commercial temp. range

0°C to 125°C

Industrial temp. range

-40°C to 125°C

Line regulation

0.005% (typical)

Load regulation

0.05% (typical)

Direct replacement for LT™1585A/87

  

Description

The LMS1585A and LMS1587 are low dropout positive regulators 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 microprocessor 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 .

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.

Applications
•Pentium™ processor supplies
•PowerPC™ supplies
•Other microprocessor supplies
•Low voltage logic supplies
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ParametersValues
Output Current 3000 mA
Output Min 1.25, 3.3, 1.5 Volt
Input Min Voltage 2.4, 2.5 Volt
Input Max Voltage 13 Volt
Dropout Voltage 1.15 Volt
Adjustable Output No, Yes
Quiescent Current 7 mA
On/Off Pin No
Error Flag No
RegType LDO
Temperature Min -40, 0 deg C
Temperature Max 125 deg C
Output Voltage Undefined, 3.3, 1.5 Volt
Output Max 5.75, 3.3, 1.5 Volt

Datasheets
TitleSizeDateOther
Language
LMS1585A/LMS1587 5A and 3A Low Dropout Fast Response Regulators514
Kbytes		6-Jun-05日本語

Part Number(s)
(NSID)		Top ViewAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LMS1587CS-1.5/NOPB
LMS1587CS-1.5

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide227
DIGIKEYWorldwide0
RS COMPONENTSWorldwide87
TAYLORAmericas1875
$1.14 each at 1K+ pcsrail
of
45
LMS1587CS-3.3/NOPB
LMS1587CS-3.3

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide1000
DIGIKEYWorldwide0
FUTUREWorldwide836
NEWARKAmericas248
RS COMPONENTSWorldwide135
$1.14 each at 1K+ pcsrail
of
45
LMS1587CS-ADJ/NOPB
LMS1587CS-ADJ

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

Samples
DistributorRegionQty
ARROWWorldwide377
DIGIKEYWorldwide180
FUTUREWorldwide1100
NEWARKAmericas462
RS COMPONENTSWorldwide117
TECHMOSAAsia Pacific1800
$1.14 each at 1K+ pcsrail
of
45
LMS1587CSX-1.5/NOPB
LMS1587CSX-1.5

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide500
DIGIKEYWorldwide0
FUTUREWorldwide112
TECHMOSAAsia Pacific1000
$1.14 each at 1K+ pcsreel
of
500
LMS1587CSX-3.3/NOPB
LMS1587CSX-3.3

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide1860
DIGIKEYWorldwide0
FUTUREWorldwide1100
$1.14 each at 1K+ pcsreel
of
500
LMS1587CSX-ADJ/NOPB
LMS1587CSX-ADJ

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
FUTUREWorldwide878
TECHMOSAAsia Pacific4000
$1.14 each at 1K+ pcsreel
of
500
LMS1587CT-3.3/NOPB
LMS1587CT-3.3

RoHS Status



TO-220		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide585
AVNET-EMWorldwide310
DIGIKEYWorldwide592
FUTUREWorldwide330
RS COMPONENTSWorldwide142
TAYLORAmericas2025
$1.07 each at 1K+ pcsrail
of
45
LMS1587CT-ADJ/NOPB
LMS1587CT-ADJ

RoHS Status



TO-220		Full production
Lead Time: 8 weeks

Samples
DistributorRegionQty
ARROWWorldwide401
DIGIKEYWorldwide328
FUTUREWorldwide205
RS COMPONENTSWorldwide110
TAYLORAmericas2025
$1.07 each at 1K+ pcsrail
of
45
LMS1587IS-1.5/NOPB
LMS1587IS-1.5

RoHS Status



TO-263		Full production
Lead Time: 8 weeks

 
DistributorRegionQty
ARROWWorldwide917
DIGIKEYWorldwide0
NEWARKAmericas179
$1.14 each at 1K+ pcsrail
of
45
LMS1587IS-3.3/NOPB
LMS1587IS-3.3

RoHS Status



TO-263		Full production
Lead Time: 12 weeks

 
DistributorRegionQty
ARROWWorldwide10
AVNET-EMWorldwide271
DIGIKEYWorldwide348
FUTUREWorldwide405
NEWARKAmericas257
RS COMPONENTSWorldwide122
TAYLORAmericas1295
$1.14 each at 1K+ pcsrail
of
45
LMS1587IS-ADJ/NOPB
LMS1587IS-ADJ

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide5
DIGIKEYWorldwide307
FUTUREWorldwide5
NEWARKAmericas20
TAYLORAmericas2264
$1.14 each at 1K+ pcsrail
of
45
LMS1587ISX-3.3/NOPB
LMS1587ISX-3.3

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.14 each at 1K+ pcsreel
of
500
LMS1587ISX-ADJ/NOPB
LMS1587ISX-ADJ

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
FUTUREWorldwide500
$1.14 each at 1K+ pcsreel
of
500
LMS1587IT-1.5/NOPB
LMS1587IT-1.5

RoHS Status



TO-220		Full production
Lead Time: 8 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
TAYLORAmericas440
$1.12 each at 1K+ pcsrail
of
45

Obsolete Versions
Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LMS1587CT-1.5
LMS1587CSX-1.5
NATIONAL SEMICONDUCTOR
01 Dec 2009
LMS1587I1.5 MDC
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LMS1587I1.5 MWC
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LMS1587ISX-1.5
LMS1587CSX-1.5
NATIONAL SEMICONDUCTOR
01 Dec 2009
LMS1587ISXADJEP
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LMS1587IT-3.3
LMS1587CSX-3.3
NATIONAL SEMICONDUCTOR
01 Dec 2009
LMS1587IT-ADJ
LMS1587ISX-ADJ
NATIONAL SEMICONDUCTOR
01 Dec 2009

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

Part Number(s)
(NSID)		Top ViewTypePinsMSL RatingPeak ReflowRoHS
Status		CAD SymbolsModelsPackage
Marking
Format
LMS1587CS-1.5/NOPB
LMS1587CS-1.5
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LMS1587
CS-1.5
LMS1587CS-3.3/NOPB
LMS1587CS-3.3
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LMS1587
CS-3.3
LMS1587CS-ADJ/NOPB
LMS1587CS-ADJ
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LMS1587
CS-ADJ
LMS1587CSX-1.5/NOPB
LMS1587CSX-1.5
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LMS1587
CS-1.5
LMS1587CSX-3.3/NOPB
LMS1587CSX-3.3
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LMS1587
CS-3.3
LMS1587CSX-ADJ/NOPB
LMS1587CSX-ADJ
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LMS1587
CS-ADJ
LMS1587CT-3.3/NOPB
LMS1587CT-3.3
TO-22031
1		NA
NA		DetailDownloadN/A
NSUZXYTTE#
LMS1587
CT-3.3
LMS1587CT-ADJ/NOPB
LMS1587CT-ADJ
TO-22031
1		NA
NA		DetailDownloadN/A
NSUZXYTTE#
LMS1587
CT-ADJ
LMS1587IS-1.5/NOPB
LMS1587IS-1.5
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LMS1587
IS-1.5
LMS1587IS-3.3/NOPB
LMS1587IS-3.3
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LMS1587
IS-3.3
LMS1587IS-ADJ/NOPB
LMS1587IS-ADJ
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LMS1587
IS-ADJ
LMS1587ISX-3.3/NOPB
LMS1587ISX-3.3
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LMS1587
IS-3.3
LMS1587ISX-ADJ/NOPB
LMS1587ISX-ADJ
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LMS1587
IS-ADJ
LMS1587IT-1.5/NOPB
LMS1587IT-1.5
TO-22031
1		NA
NA		DetailDownloadN/A
NSUZXYTTE#
LMS1587
IT-1.5

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

Design Tools
TitleSizeDate
LMX158x Qualification Package684 Kbytes17-Apr-2000

CAD Symbols and Models
Download LMS1587 CAD Symbols
 Models
N/A

Reliability Metrics
Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LMS1587CS-1.5LB30003366400383050011086914834
LMS1587CS-3.3LB30003366400383050011086914834
LMS1587CS-ADJLB30003366400383050011086914834
LMS1587CSX-1.5LB30003366400383050011086914834
LMS1587CSX-3.3LB30003366400383050011086914834
LMS1587CSX-ADJLB30003366400383050011086914834
LMS1587CT-1.5LB30003366400383050011086914834
LMS1587CT-3.3LB30003366400383050011086914834
LMS1587CT-ADJLB30003366400383050011086914834
LMS1587IS-1.5LB30003366400383050011086914834
LMS1587IS-3.3LB30003366400383050011086914834
LMS1587IS-ADJLB30003366400383050011086914834
LMS1587ISX-1.5LB30003366400383050011086914834
LMS1587ISX-3.3LB30003366400383050011086914834
LMS1587ISX-ADJLB30003366400383050011086914834
LMS1587IT-1.5LB30003366400383050011086914834
LMS1587IT-3.3LB30003366400383050011086914834
LMS1587IT-ADJLB30003366400383050011086914834

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

National's certificate of product compliance is located at RoHS Status.

Obsolete Versions
Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LMS1587CT-1.5
LMS1587CSX-1.5
NATIONAL SEMICONDUCTOR
01 Dec 2009
LMS1587I1.5 MDC
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LMS1587I1.5 MWC
NONE
NATIONAL SEMICONDUCTOR
03 Dec 2008
LMS1587ISX-1.5
LMS1587CSX-1.5
NATIONAL SEMICONDUCTOR
01 Dec 2009
LMS1587ISXADJEP
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LMS1587IT-3.3
LMS1587CSX-3.3
NATIONAL SEMICONDUCTOR
01 Dec 2009
LMS1587IT-ADJ
LMS1587ISX-ADJ
NATIONAL SEMICONDUCTOR
01 Dec 2009

[Information as of 9-Feb-2010]