LM1086   
1.5A Low Dropout Positive Regulators 		Click link to Download

Features
  • Available in 1.8V, 2.5V, 2.85V, 3.3V, 3.45V, 5V and Adjustable Versions
  • Current Limiting and Thermal Protection

Output Current

1.5A

Line Regulation

0.015% (typical)

Load Regulation

0.1% (typical)

Description

The LM1086 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 1.5A of load current. It has the same pin-out as National Semiconductor's industry standard LM317.

The LM1086 is available in an adjustable version, which can set the output voltage with only two external resistors. It is also available in six fixed voltages: 1.8V, 2.5V, 2.85V, 3.3V, 3.45V and 5.0V. The fixed versions integrate the adjust resistors.

The LM1086 circuit includes a zener trimmed bandgap reference, current limiting and thermal shutdown.

The LM1086 series is available in TO-220, TO-263, and LLP packages. Refer to the LM1084 for the 5A version, and the LM1085 for the 3A version.

Applications
•SCSI-2 Active Terminator
•High Efficiency Linear Regulators
•Battery Charger
•Post Regulation for Switching Supplies
•Constant Current Regulator
•Microprocessor Supply
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                                              LM1086
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Paramaters / ValuesLM1086 LP38852 LP38855 LP38858
Output Current1500 mA
Output Min3.3, 1.25, 5, 2.5 Volt
Input Min Voltage2.6 Volt
Input Max Voltage27, 25, 30, 29 Volt
Dropout Voltage1.3 Volt
Adjustable OutputNo
Quiescent Current2 mA
On/Off PinNo
Error FlagNo
RegTypeLDO
Temperature Min-40 deg C
Temperature Max125 deg C
Output Max3.3, 27.5, 5, 2.5 Volt
Output Voltage3.3, 5, 2.5 Volt
Part Number(s)
(NSID)		Top ViewAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LM1086CS-2.5/NOPB
LM1086CS-2.5

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide778
DIGIKEYWorldwide442
FUTUREWorldwide85
NEWARKAmericas460
RS COMPONENTSWorldwide40
$0.90 each at 1K+ pcsrail
of
45
LM1086CS-3.3/NOPB
LM1086CS-3.3

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

Samples
DistributorRegionQty
ARROWWorldwide455
AVNET-EMWorldwide82
DIGIKEYWorldwide899
FARNELLEurope and Asia2973
FUTUREWorldwide1100
NEWARKAmericas308
RS COMPONENTSWorldwide195
$0.90 each at 1K+ pcsrail
of
45
LM1086CS-5.0/NOPB
LM1086CS-5.0

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
RS COMPONENTSWorldwide175
TAYLORAmericas2900
$0.90 each at 1K+ pcsrail
of
45
LM1086CS-ADJ/NOPB
LM1086CS-ADJ

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

Samples
DistributorRegionQty
ARROWWorldwide916
AVNET-EMWorldwide78
DIGIKEYWorldwide0
FUTUREWorldwide1100
RS COMPONENTSWorldwide169
TECHMOSAAsia Pacific40
$0.90 each at 1K+ pcsrail
of
45
LM1086CSX-2.5/NOPB
LM1086CSX-2.5

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
FUTUREWorldwide500
$0.90 each at 1K+ pcsreel
of
500
LM1086CSX-3.3/NOPB
LM1086CSX-3.3

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide478
DIGIKEYWorldwide0
FUTUREWorldwide1100
$0.90 each at 1K+ pcsreel
of
500
LM1086CSX-ADJ/NOPB
LM1086CSX-ADJ

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
AITGAsia Pacific1001
ARROWWorldwide8845
AVNET-EMWorldwide1500
DIGIKEYWorldwide0
FUTUREWorldwide1100
KEIKONGAsia Pacific500
$0.90 each at 1K+ pcsreel
of
500
LM1086CT-3.3/NOPB
LM1086CT-3.3

RoHS Status



TO-220		Full production
Lead Time: 16 weeks

Samples
DistributorRegionQty
ARROWWorldwide764
AVNET-EMWorldwide3347
DIGIKEYWorldwide263
FARNELLEurope and Asia2324
FUTUREWorldwide1100
KEIKONGAsia Pacific3200
NEWARKAmericas247
RS COMPONENTSWorldwide1338
$0.88 each at 1K+ pcsrail
of
45
LM1086CT-5.0/NOPB
LM1086CT-5.0

RoHS Status



TO-220		Full production
Lead Time: 16 weeks

Samples
DistributorRegionQty
ARROWWorldwide2696
AVNET-EMWorldwide158
DIGIKEYWorldwide785
FUTUREWorldwide1100
KEIKONGAsia Pacific5805
NEWARKAmericas435
RS COMPONENTSWorldwide325
TAYLORAmericas2900
$0.88 each at 1K+ pcsrail
of
45
LM1086CT-ADJ/NOPB
LM1086CT-ADJ

RoHS Status



TO-220		Full production
Lead Time: 16 weeks

Samples
DistributorRegionQty
ARROWWorldwide493
AVNET-EMWorldwide315
DIGIKEYWorldwide1208
FARNELLEurope and Asia2416
FUTUREWorldwide1100
KEIKONGAsia Pacific12715
NEWARKAmericas122
RS COMPONENTSWorldwide168
TAYLORAmericas2900
$0.88 each at 1K+ pcsrail
of
45
LM1086ILD-3.3/NOPB
LM1086ILD-3.3

RoHS Status



LLP		Full production
Lead Time: 12 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$0.92 each at 1K+ pcsreel
of
1000
LM1086IS-1.8/NOPB
LM1086IS-1.8

RoHS Status



TO-263		Full production
Lead Time: 8 weeks

 
DistributorRegionQty
ARROWWorldwide445
DIGIKEYWorldwide0
FARNELLEurope and Asia692
RS COMPONENTSWorldwide45
$0.88 each at 1K+ pcsrail
of
45
LM1086IS-3.3/NOPB
LM1086IS-3.3

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

Samples
DistributorRegionQty
ARROWWorldwide45
DIGIKEYWorldwide495
FARNELLEurope and Asia2331
FUTUREWorldwide1100
NEWARKAmericas334
RS COMPONENTSWorldwide302
$0.88 each at 1K+ pcsrail
of
45
LM1086IS-5.0/NOPB
LM1086IS-5.0

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

Samples
DistributorRegionQty
ARROWWorldwide488
AVNET-EMWorldwide2443
DIGIKEYWorldwide592
FARNELLEurope and Asia3446
FUTUREWorldwide872
NEWARKAmericas401
RS COMPONENTSWorldwide235
TAYLORAmericas1648
$0.88 each at 1K+ pcsrail
of
45
LM1086IS-ADJ/NOPB
LM1086IS-ADJ

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

Samples
DistributorRegionQty
ARROWWorldwide502
AVNET-EMWorldwide235
DIGIKEYWorldwide5194
FUTUREWorldwide1100
NEWARKAmericas459
RS COMPONENTSWorldwide319
TAYLORAmericas2555
$0.88 each at 1K+ pcsrail
of
45
LM1086ISX-1.8/NOPB
LM1086ISX-1.8

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide500
DIGIKEYWorldwide0
FUTUREWorldwide1100
$0.88 each at 1K+ pcsreel
of
500
LM1086ISX-3.3/NOPB
LM1086ISX-3.3

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
FUTUREWorldwide1100
KEIKONGAsia Pacific2000
$0.88 each at 1K+ pcsreel
of
500
LM1086ISX-5.0/NOPB
LM1086ISX-5.0

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
FUTUREWorldwide1100
$0.88 each at 1K+ pcsreel
of
500
LM1086ISX-ADJ/NOPB
LM1086ISX-ADJ

RoHS Status



TO-263		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide18990
AVNET-EMWorldwide2000
DIGIKEYWorldwide0
FUTUREWorldwide1100
TECHMOSAAsia Pacific842
$0.88 each at 1K+ pcsreel
of
500
LM1086IT-3.3/NOPB
LM1086IT-3.3

RoHS Status



TO-220		Full production
Lead Time: 16 weeks

Samples
DistributorRegionQty
ARROWWorldwide632
DIGIKEYWorldwide0
FUTUREWorldwide68
RS COMPONENTSWorldwide459
$0.88 each at 1K+ pcsrail
of
45
LM1086IT-5.0/NOPB
LM1086IT-5.0

RoHS Status



TO-220		Full production
Lead Time: 16 weeks

 
DistributorRegionQty
ARROWWorldwide817
AVNET-EMWorldwide487
DIGIKEYWorldwide445
FUTUREWorldwide380
NEWARKAmericas8
RS COMPONENTSWorldwide345
TAYLORAmericas2490
$0.88 each at 1K+ pcsrail
of
45
LM1086IT-ADJ/NOPB
LM1086IT-ADJ

RoHS Status



TO-220		Full production
Lead Time: 16 weeks

Samples
DistributorRegionQty
ARROWWorldwide1575
AVNET-EMWorldwide1
DIGIKEYWorldwide640
FUTUREWorldwide1100
NEWARKAmericas469
RS COMPONENTSWorldwide365
TAYLORAmericas2600
$0.88 each at 1K+ pcsrail
of
45
LM1086-ADJ MDC

RoHS Status

Full production
Lead Time: N/A

 

Contact your distributor
CALLtray
of
N/A

Obsolete Versions
Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LM1086CS-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086CSX-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086CSX-5.0
LM1086CS-ADJ
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086CT-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILD-1.8
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILD-2.5
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILD-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILD-5.0
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILD-ADJ
LM1086IS-ADJ
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086ILDX-2.5
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILDX-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILDX-3.3
LM1086IS-3.3
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086ILDX-5.0
LM1086IS-3.3
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086ILDX-ADJ
LM1086IS-ADJ
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086IS-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086IS-3.45
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ISX-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ISX-3.45
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086IT-1.8
LM1086ISX-1.8
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086IT-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086S-3.3
NONE
NONE
06 Dec 2000
LM1086S-ADJ
NONE
NONE
06 Dec 2000
LM1086T-3.3
NONE
NONE
06 Dec 2000
LM1086T-ADJ
NONE
NONE
06 Dec 2000

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
LM1086CS-2.5/NOPB
LM1086CS-2.5
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
CS-2.5
LM1086CS-3.3/NOPB
LM1086CS-3.3
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
CS-3.3
LM1086CS-5.0/NOPB
LM1086CS-5.0
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
CS-5.0
LM1086CS-ADJ/NOPB
LM1086CS-ADJ
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
CS-ADJ
LM1086CSX-2.5/NOPB
LM1086CSX-2.5
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
CS-2.5
LM1086CSX-3.3/NOPB
LM1086CSX-3.3
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
CS-3.3
LM1086CSX-ADJ/NOPB
LM1086CSX-ADJ
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
CS-ADJ
LM1086CT-3.3/NOPB
LM1086CT-3.3
TO-22031
1		NA
NA		DetailDownloadN/A
NSUZXYTTE#
LM1086
CT-3.3
LM1086CT-5.0/NOPB
LM1086CT-5.0
TO-22031
1		NA
NA		DetailDownloadN/A
NSUZXYTTE#
LM1086
CT-5.0
LM1086CT-ADJ/NOPB
LM1086CT-ADJ
TO-22031
1		NA
NA		DetailDownloadN/A
NSUZXYTTE#
LM1086
CT-ADJ
LM1086ILD-3.3/NOPB
LM1086ILD-3.3
LLP83
1		260
235		DetailDownloadN/A
NS
UZXYTT
1086I33
LM1086IS-1.8/NOPB
LM1086IS-1.8
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
IS-1.8
LM1086IS-3.3/NOPB
LM1086IS-3.3
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
IS-3.3
LM1086IS-5.0/NOPB
LM1086IS-5.0
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
IS-5.0
LM1086IS-ADJ/NOPB
LM1086IS-ADJ
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
IS-ADJ
LM1086ISX-1.8/NOPB
LM1086ISX-1.8
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
IS-1.8
LM1086ISX-3.3/NOPB
LM1086ISX-3.3
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
IS-3.3
LM1086ISX-5.0/NOPB
LM1086ISX-5.0
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
IS-5.0
LM1086ISX-ADJ/NOPB
LM1086ISX-ADJ
TO-26333
3		245
235		DetailDownloadN/A
NSUZXYTTE#
LM1086
IS-ADJ
LM1086IT-3.3/NOPB
LM1086IT-3.3
TO-22031
1		NA
NA		DetailDownloadN/A
NSUZXYTTE#
LM1086
IT-3.3
LM1086IT-5.0/NOPB
LM1086IT-5.0
TO-22031
1		NA
NA		DetailDownloadN/A
NSUZXYTTE#
LM1086
IT-5.0
LM1086IT-ADJ/NOPB
LM1086IT-ADJ
TO-22031
1		NA
NA		DetailDownloadN/A
NSUZXYTTE#
LM1086
IT-ADJ
LM1086-ADJ MDC
Unpackaged DieN/A
-

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
LM108X Qualification Package1455 Kbytes24-Jun-1999

CAD Symbols and Models
Download LM1086 CAD Symbols
 Models
N/A

Reliability Metrics
Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM1086-ADJ MDCLB30003366400383050011086914834
LM1086CS-2.5LB30003366400383050011086914834
LM1086CS-2.85LB30003366400383050011086914834
LM1086CS-3.3LB30003366400383050011086914834
LM1086CS-5.0LB30003366400383050011086914834
LM1086CS-ADJLB30003366400383050011086914834
LM1086CSX-2.5LB30003366400383050011086914834
LM1086CSX-3.3LB30003366400383050011086914834
LM1086CSX-5.0LB30003366400383050011086914834
LM1086CSX-ADJLB30003366400383050011086914834
LM1086CT-3.3LB30003366400383050011086914834
LM1086CT-5.0LB30003366400383050011086914834
LM1086CT-ADJLB30003366400383050011086914834
LM1086ILD-3.3LB30003366400383050011086914834
LM1086ILD-ADJLB30003366400383050011086914834
LM1086ILDX-3.3LB30003366400383050011086914834
LM1086ILDX-5.0LB30003366400383050011086914834
LM1086ILDX-ADJLB30003366400383050011086914834
LM1086IS-1.8LB30003366400383050011086914834
LM1086IS-3.3LB30003366400383050011086914834
LM1086IS-3.45LB30003366400383050011086914834
LM1086IS-5.0LB30003366400383050011086914834
LM1086IS-ADJLB30003366400383050011086914834
LM1086ISX-1.8LB30003366400383050011086914834
LM1086ISX-3.3LB30003366400383050011086914834
LM1086ISX-3.45LB30003366400383050011086914834
LM1086ISX-5.0LB30003366400383050011086914834
LM1086ISX-ADJLB30003366400383050011086914834
LM1086IT-1.8LB30003366400383050011086914834
LM1086IT-2.85LB30003366400383050011086914834
LM1086IT-3.3LB30003366400383050011086914834
LM1086IT-5.0LB30003366400383050011086914834
LM1086IT-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
LM1086CS-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086CSX-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086CSX-5.0
LM1086CS-ADJ
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086CT-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILD-1.8
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILD-2.5
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILD-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILD-5.0
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILD-ADJ
LM1086IS-ADJ
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086ILDX-2.5
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILDX-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ILDX-3.3
LM1086IS-3.3
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086ILDX-5.0
LM1086IS-3.3
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086ILDX-ADJ
LM1086IS-ADJ
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086IS-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086IS-3.45
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ISX-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086ISX-3.45
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086IT-1.8
LM1086ISX-1.8
NATIONAL SEMICONDUCTOR
01 Dec 2009
LM1086IT-2.85
NONE
NATIONAL SEMICONDUCTOR
16 Nov 2008
LM1086S-3.3
NONE
NONE
06 Dec 2000
LM1086S-ADJ
NONE
NONE
06 Dec 2000
LM1086T-3.3
NONE
NONE
06 Dec 2000
LM1086T-ADJ
NONE
NONE
06 Dec 2000

[Information as of 9-Feb-2010]