National Semiconductor | High-performance Analog

 

 LM4051   
Precision Micropower Shunt Voltage Reference 		Click link to Download

Features
  • Small packages: SOT-23
  • No output capacitor required
  • Tolerates capacitive loads
  • Reverse breakdown voltage options of 1.225V and adjustable

    • Description

    Ideal for space critical applications, the LM4051 precision voltage reference is available in the sub-miniature (3 mm x 1.3 mm) SOT-23 surface-mount package. The LM4051's advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4051 easy to use. Further reducing design effort is the availability of a fixed (1.225V) and adjustable reverse breakdown voltage. The minimum operating current is 60 µA for the LM4051-1.2 and the LM4051-ADJ. Both versions have a maximum operating current of 12 mA.

    The LM4051 comes in three grades (A, B, and C). The best grade devices (A) have an initial accuracy of 0.1%, while the B-grade have 0.2% and the C-grade 0.5%, all with a tempco of 50 ppm/°C guaranteed from -40°C to 125°C.

    The LM4051 utilizes fuse and zener-zap trim of reference voltage during wafer sort to ensure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25°C.

    Key Specification
    Output voltage tolerance (A grade, 25°C)±0.1%(max)
    Low output noise (10 Hz to 10kHz)20µVrms
    Wide operating current range60µA to 12mA
    Industrial temperature range-40°C to +85°C
    Extended temperature range-40°C to +125°C
    Low temperature coefficient50 ppm/°C (max)


    Applications

  • Portable, Battery-Powered Equipment
  • Data Acquisition Systems
  • Instrumentation
  • Process Control
  • Energy Management
  • Automotive and Industrial
  • Precision Audio Components
  • Base Stations
  • Battery Chargers
  • Medical Equipment
  • Communication

    • Also Recommended
    LM4121Series (LDO) Type Voltage Reference
    LM4140Ultra High Precision
    LM4130Lower Tempco & Current, Better Accuracy



    Typical Application
    *click for larger image


     

    ParametersValues
    Initial Accuracy (+/-) Max 0.1 %
    Reference Voltage 1.225 V, Adjustable
    Tempco, max (ppm/C) 50 ppm
    Operating Current 0.060 mA
    Output Current 12 mA
    Reference with respect to Cathode (high side)
    Temperature Min -40 deg C
    Temperature Max 85 deg C

    Datasheets
    TitleSizeDateOther
    Language
    LM4051 Precision Micropower Shunt Voltage Reference746
    Kbytes    		25-Mar-05日本語  

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM4051AIM3-1.2/NOPB

    LM4051AIM3-1.2

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1375
    AVNET-EMWorldwide1000
    DIGI-KEYWorldwide4621
    MOUSERWorldwide945
    NEWARKAmericas992
    RS COMPONENTSWorldwide828
    TAYLORAmericas4830
    		$1.25 each at 1K+ pcsreel
    of
    1000
    LM4051AIM3-ADJ/NOPB

    LM4051AIM3-ADJ

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1901
    DIGI-KEYWorldwide2270
    FARNELLEurope and Asia2481
    MOUSERWorldwide995
    NEWARKAmericas653
    TAYLORAmericas1901
    		$1.25 each at 1K+ pcsreel
    of
    1000
    LM4051AIM3X-1.2/NOPB

    LM4051AIM3X-1.2

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.25 each at 1K+ pcsreel
    of
    3000
    LM4051AIM3X-ADJ/NOPB

    LM4051AIM3X-ADJ

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.25 each at 1K+ pcsreel
    of
    3000
    LM4051BEM3-1.2/NOPB

    LM4051BEM3-1.2

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide3000
    DIGI-KEYWorldwide2744
    MOUSERWorldwide975
    TAYLORAmericas3000
    		$0.99 each at 1K+ pcsreel
    of
    1000
    LM4051BIM3-1.2/NOPB

    LM4051BIM3-1.2

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide2810
    MOUSERWorldwide725
    NEWARKAmericas302
    		$0.95 each at 1K+ pcsreel
    of
    1000
    LM4051BIM3-ADJ/NOPB


    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1294
    DIGI-KEYWorldwide2166
    FARNELLEurope and Asia1992
    MOUSERWorldwide750
    NEWARKAmericas1000
    TAYLORAmericas1294
    		$0.95 each at 1K+ pcsreel
    of
    1000
    LM4051BIM3X-1.2/NOPB

    LM4051BIM3X-1.2

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.95 each at 1K+ pcsreel
    of
    3000
    LM4051BIM3X-ADJ/NOPB

    LM4051BIM3X-ADJ

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.95 each at 1K+ pcsreel
    of
    3000
    LM4051CIM3-1.2/NOPB

    LM4051CIM3-1.2

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1000
    AVNET-EMWorldwide1000
    DIGI-KEYWorldwide1939
    MOUSERWorldwide835
    NEWARKAmericas988
    TAYLORAmericas1000
    		$0.78 each at 1K+ pcsreel
    of
    1000
    LM4051CIM3-ADJ/NOPB

    LM4051CIM3-ADJ

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide4810
    DIGI-KEYWorldwide4139
    FARNELLEurope and Asia1505
    MOUSERWorldwide1000
    NEWARKAmericas673
    TAYLORAmericas4810
    		$0.78 each at 1K+ pcsreel
    of
    1000
    LM4051CIM3X-1.2/NOPB

    LM4051CIM3X-1.2

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.78 each at 1K+ pcsreel
    of
    3000
    LM4051CIM3X-ADJ/NOPB

    LM4051CIM3X-ADJ

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.78 each at 1K+ pcsreel
    of
    3000

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LM4051AEM3-1.2
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LM4051AEM3-ADJ
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LM4051AEM3X-ADJ
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LM4051CEM3-1.2
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LM4051CEM3-ADJ
    		NONE
    		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 LM4051.

    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 LM4051 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LM4051AIM3-1.2/NOPB

    LM4051AIM3-1.2
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RHA
    XTT
    LM4051AIM3-ADJ/NOPB

    LM4051AIM3-ADJ
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RIA
    XTT
    LM4051AIM3X-1.2/NOPB

    LM4051AIM3X-1.2
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RHA
    XTT
    LM4051AIM3X-ADJ/NOPB

    LM4051AIM3X-ADJ
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RIA
    XTT
    LM4051BEM3-1.2/NOPB

    LM4051BEM3-1.2
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RHB
    XTT
    LM4051BIM3-1.2/NOPB

    LM4051BIM3-1.2
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RHB
    XTT
    LM4051BIM3-ADJ/NOPB

    		10.34
    10.399
    		SOT-2331260DetailDownloadN/A
    		RIB
    XTT
    LM4051BIM3X-1.2/NOPB

    LM4051BIM3X-1.2
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RHB
    XTT
    LM4051BIM3X-ADJ/NOPB

    LM4051BIM3X-ADJ
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RIB
    XTT
    LM4051CIM3-1.2/NOPB

    LM4051CIM3-1.2
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RHC
    XTT
    LM4051CIM3-ADJ/NOPB

    LM4051CIM3-ADJ
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RIC
    XTT
    LM4051CIM3X-1.2/NOPB

    LM4051CIM3X-1.2
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RHC
    XTT
    LM4051CIM3X-ADJ/NOPB

    LM4051CIM3X-ADJ
    		10.34
    10.399
    		SOT-2331
    1    		260
    260    		DetailDownloadN/A
    		RIC
    XTT

    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 LM4051.

    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 LM4051 is located at RoHS Status.

    CAD Symbols and Models
    Download LM4051 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM4051AIM3-1.2LFAST10201400027850002790251354
    LM4051AIM3-ADJLFAST10201400027850002790251354
    LM4051AIM3X-1.2LFAST10201400027850002790251354
    LM4051AIM3X-ADJLFAST10201400027850002790251354
    LM4051BEM3-1.2LFAST10201400027850002790251354
    LM4051BIM3-1.2LFAST10201400027850002790251354
    LM4051BIM3-ADJLFAST10201400027850002790251354
    LM4051BIM3X-1.2LFAST10201400027850002790251354
    LM4051BIM3X-ADJLFAST10201400027850002790251354
    LM4051CIM3-1.2LFAST10201400027850002790251354
    LM4051CIM3-ADJLFAST10201400027850002790251354
    LM4051CIM3X-1.2LFAST10201400027850002790251354
    LM4051CIM3X-ADJLFAST10201400027850002790251354

    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 LM4051.

    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 LM4051 is located at RoHS Status.

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LM4051AEM3-1.2
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LM4051AEM3-ADJ
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LM4051AEM3X-ADJ
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LM4051CEM3-1.2
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LM4051CEM3-ADJ
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009

    LM5045/LM5046 Full-Bridge PWM Controllers with Integrated MOSFET Gate Drivers Overview
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    LM5045/LM5046 Full-Bridge PWM Controllers with Integrated MOSFET Gate Drivers Overview
    Date: 2011-03-23
    Length: 00:05:15
    [Information as of 9-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation