National Semiconductor | High-performance Analog

 

 LM723   

Voltage Regulator
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Features
  • 150 mA output current without external pass transistor
  • Output currents in excess of 10A possible by adding external transistors
  • Input voltage 40V max
  • Output voltage adjustable from 2V to 37V
  • Can be used as either a linear or a switching regulator
  • Description

    The LM723/LM723C is a voltage regulator designed primarily for series regulator applications. By itself, it will supply output currents up to 150 mA; but external transistors can be added to provide any desired load current. The circuit features extremely low standby current drain, and provision is made for either linear or foldback current limiting.

    The LM723/LM723C is also useful in a wide range of other applications such as a shunt regulator, a current regulator or a temperature controller.

    The LM723C is identical to the LM723 except that the LM723C has its performance guaranteed over a 0°C to +70°C temperature range, instead of -55°C to +125°C.

    Also Recommended
    LM117Supports Higher Output Currents



    Typical Application
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    Connection Diagram
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    Typical Performance
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    Parameters / ValuesLM723 LM117
    Output Current150 mA 1500, 500 mA
    Output VoltageUndefined Volt Undefined Volt
    Input Min Voltage9.5 Volt 4.2 Volt
    Input Max Voltage40 Volt 40 Volt
    Adjustable OutputYes Yes
    On/Off PinNo No
    PowerGood / Error FlagNo No
    Temperature Min-55 deg C -55 deg C
    Temperature Max150 deg C 125 deg C
    RegTypeLinear Regulator Linear Regulator

    Datasheets
    TitleSizeDateOther
    Language
    LM723 Voltage Regulator470
    Kbytes
    23-Jun-99   


    Application Notes
    TitleSizeDateOther
    Language
    AN-173: Application Note 173 IC Zener Eases Reference Design54
    Kbytes
    1-Oct-02 

    Part Number(s)
    (NSID)
    Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM723H/NOPB

    LM723H

    RoHS Status


    TO-100
    Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide635
    AVNET-EMWorldwide527
    DIGI-KEYWorldwide617
    FARNELLEurope and Asia467
    MOUSERWorldwide469
    TAYLORAmericas1006
    $3.97 each at 1K+ pcsbox
    of
    500

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LM723H-MLS
    NONE
    NONE
    06 Sep 2000
    LM723J-MLS
    NONE
    NONE
    08 Sep 1998

    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 LM723.

    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 LM723 is located at RoHS Status.

    Part Number(s)
    (NSID)
    Weight
    (milligrams)
    TypePinsMSL RatingPeak ReflowRoHS
    Status
    CAD SymbolsModelsPackage
    Marking
    Format
    LM723H/NOPB

    LM723H
    1013.329
    1014.689
    TO-100101
    1
    NA
    NA
    DetailN/AN/A
    NSZXYTTE# LM723H

    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 LM723.

    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 LM723 is located at RoHS Status.

    CAD Symbols and Models
    N/A
     Models
    N/A


    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LM723H-MLS
    NONE
    NONE
    06 Sep 2000
    LM723J-MLS
    NONE
    NONE
    08 Sep 1998

    [Information as of 6-Feb-2012]