National Semiconductor | High-performance Analog

 

 LMS1585A   
5A 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

    •  

    ParametersValues
    Output Current 5000 mA
    Output Min 1.25, 3.3, 1.5 Volt
    Input Min Voltage 2.5 Volt
    Input Max Voltage 13 Volt
    Dropout Voltage 1.2 Volt
    Adjustable Output No, Yes
    Quiescent Current 7 mA
    On/Off Pin No
    PowerGood / 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
    Feedback Voltage 1.250 Volt

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

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LMS1585ACS-1.5/NOPB

    LMS1585ACS-1.5

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide499
    AVNET-EMWorldwide95
    DIGI-KEYWorldwide0
    MOUSERWorldwide392
    RS COMPONENTSWorldwide139
    TAYLORAmericas499
    		$1.02 each at 1K+ pcsrail
    of
    45
    LMS1585ACS-3.3/NOPB

    LMS1585ACS-3.3

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide316
    AVNET-EMWorldwide162
    DIGI-KEYWorldwide1211
    MOUSERWorldwide395
    RS COMPONENTSWorldwide65
    TAYLORAmericas1526
    TECHMOSAAsia Pacific2
    		$1.02 each at 1K+ pcsrail
    of
    45
    LMS1585ACSX-1.5/NOPB

    LMS1585ACSX-1.5

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.02 each at 1K+ pcsreel
    of
    500
    LMS1585ACSX-3.3/NOPB

    LMS1585ACSX-3.3

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide500
    AVNET-EMWorldwide500
    BRITESTONESouth Korea52000
    DIGI-KEYWorldwide0
    MOUSERWorldwide496
    TAYLORAmericas500
    		$1.02 each at 1K+ pcsreel
    of
    500
    LMS1585ACSX-ADJ/NOPB

    LMS1585ACSX-ADJ

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide1000
    AVNET-EMWorldwide5000
    DIGI-KEYWorldwide0
    TAYLORAmericas1000
    		$1.02 each at 1K+ pcsreel
    of
    500
    LMS1585ACT-1.5/NOPB

    LMS1585ACT-1.5

    RoHS Status

    TO-220    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide67
    AVNET-EMWorldwide619
    DIGI-KEYWorldwide0
    MOUSERWorldwide405
    RS COMPONENTSWorldwide83
    TAYLORAmericas67
    		$1.00 each at 1K+ pcsrail
    of
    45
    LMS1585ACT-3.3/NOPB

    LMS1585ACT-3.3

    RoHS Status

    TO-220    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide20
    AVNET-EMWorldwide90
    DIGI-KEYWorldwide788
    MOUSERWorldwide402
    TAYLORAmericas420
    		$1.00 each at 1K+ pcsrail
    of
    45
    LMS1585AIS-1.5/NOPB

    LMS1585AIS-1.5

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide1891
    AVNET-EMWorldwide394
    DIGI-KEYWorldwide0
    MOUSERWorldwide380
    RS COMPONENTSWorldwide51
    TAYLORAmericas1891
    		$1.02 each at 1K+ pcsrail
    of
    45
    LMS1585AIS-3.3/NOPB

    LMS1585AIS-3.3

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide372
    AVNET-EMWorldwide173
    DIGI-KEYWorldwide1097
    TAYLORAmericas372
    		$1.02 each at 1K+ pcsrail
    of
    45

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LMS1585ACS-ADJ
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585ACT-ADJ
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AIS-ADJ
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AIS33EP
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LMS1585AISADJEP
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LMS1585AISX-1.5
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AISX-3.3
    		LMS1585ACSX-3.3
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AISX-ADJ
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AIT-1.5
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AIT-3.3
    		LMS1585ACSX-3.3
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AIT-ADJ
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009

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

    Moisture Sensitivity Level Data for LMS1585A.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for LMS1585A is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LMS1585ACS-1.5/NOPB

    LMS1585ACS-1.5
    		1289.225
    1289.976
    		TO-26333
    3    		245
    235    		DetailN/AN/A
    		NSUZXYTTE#
    LMS1585
    ACS-1.5
    LMS1585ACS-3.3/NOPB

    LMS1585ACS-3.3
    		1289.225
    1289.976
    		TO-26333
    3    		245
    235    		DetailN/AN/A
    		NSUZXYTTE#
    LMS1585
    ACS-3.3
    LMS1585ACSX-1.5/NOPB

    LMS1585ACSX-1.5
    		1289.225
    1289.976
    		TO-26333
    3    		245
    235    		DetailN/AN/A
    		NSUZXYTTE#
    LMS1585
    ACS-1.5
    LMS1585ACSX-3.3/NOPB

    LMS1585ACSX-3.3
    		1289.225
    1289.976
    		TO-26333
    3    		245
    235    		DetailN/AN/A
    		NSUZXYTTE#
    LMS1585
    ACS-3.3
    LMS1585ACSX-ADJ/NOPB

    LMS1585ACSX-ADJ
    		1289.225
    1289.976
    		TO-26333
    3    		245
    235    		DetailN/AN/A
    		NSUZXYTTE#
    LMS1585
    ACS-ADJ
    LMS1585ACT-1.5/NOPB

    LMS1585ACT-1.5
    		1991.806
    1993.446
    		TO-22031
    1    		NA
    NA    		DetailN/AN/A
    		NSUZXYTTE#
    LMS1585ACT
    1.5
    LMS1585ACT-3.3/NOPB

    LMS1585ACT-3.3
    		1991.806
    1993.446
    		TO-22031
    1    		NA
    NA    		DetailN/AN/A
    		NSUZXYTTE#
    LMS1585
    ACT-3.3
    LMS1585AIS-1.5/NOPB

    LMS1585AIS-1.5
    		1289.225
    1289.976
    		TO-26333
    3    		245
    235    		DetailN/AN/A
    		NSUZXYTTE#
    LMS1585
    AIS-1.5
    LMS1585AIS-3.3/NOPB

    LMS1585AIS-3.3
    		1289.225
    1289.976
    		TO-26333
    3    		245
    235    		DetailN/AN/A
    		NSUZXYTTE#
    LMS1585
    AIS-3.3

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

    Moisture Sensitivity Level Data for LMS1585A.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for LMS1585A is located at RoHS Status.

    Design Tools
    TitleSizeDate
    LMX158x Qualification Package684 Kbytes17-Apr-2000

    CAD Symbols and Models
    N/A
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LMS1585ACS-1.5LB30003437100416450011181688246
    LMS1585ACS-3.3LB30003437100416450011181688246
    LMS1585ACSX-1.5LB30003437100416450011181688246
    LMS1585ACSX-3.3LB30003437100416450011181688246
    LMS1585ACSX-ADJLB30003437100416450011181688246
    LMS1585ACT-1.5LB30003437100416450011181688246
    LMS1585ACT-3.3LB30003437100416450011181688246
    LMS1585AIS-1.5LB30003437100416450011181688246
    LMS1585AIS-3.3LB30003437100416450011181688246

    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/en/packaging/leadfree.html.

    Moisture Sensitivity Level Data for LMS1585A.

    A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

    National's certificate of product compliance for LMS1585A is located at RoHS Status.

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LMS1585ACS-ADJ
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585ACT-ADJ
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AIS-ADJ
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AIS33EP
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LMS1585AISADJEP
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LMS1585AISX-1.5
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AISX-3.3
    		LMS1585ACSX-3.3
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AISX-ADJ
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AIT-1.5
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AIT-3.3
    		LMS1585ACSX-3.3
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LMS1585AIT-ADJ
    		LMS1585ACSX-ADJ
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009

    [Information as of 9-Feb-2012]
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