National Semiconductor | High-performance Analog

 

 LM4120   
Precision Micropower Low Dropout Voltage Reference from the PowerWise® Family		 Click link to Download

Features

Small SOT23-5 package

  

Low dropout voltage:

120 mV Typ @ 1 mA

High output voltage accuracy:

0.2%

Source and Sink current output:

±5 mA

Supply current:

160 µA Typ.

Low Temperature Coefficient:

50 ppm/°C

Enable pin

  

Fixed output voltages:

1.8, 2.048, 2.5, 3.0, 3.3, 4.096 and 5.0V

Industrial temperature Range:

-40°C to +85°C

(For extended temperature range, -40°C to 125°C, contact National Semiconductor)

  

Description

The LM4120 is a precision low power low dropout bandgap voltage reference with up to 5 mA output current source and sink capability.

This series reference operates with input voltages as low as 2V and up to 12V consuming 160 µA (Typ.) supply current. In power down mode, device current drops to less than 2 µA.

The LM4120 comes in two grades (A and Standard) and seven voltage options for greater flexibility. The best grade devices (A) have an initial accuracy of 0.2%, while the standard have an initial accuracy of 0.5%, both with a tempco of 50ppm/°C guaranteed from -40°C to +125°C.

The very low dropout voltage, low supply current and power-down capability of the LM4120 makes this product an ideal choice for battery powered and portable applications.

The device performance is guaranteed over the industrial temperature range (-40°C to +85°C), while certain specs are guaranteed over the extended temperature range (-40°C to +125°C). Please contact National for full specifications over the extended temperature range. The LM4120 is available in a standard 5-pin SOT-23 package.


Applications

  • Portable, battery powered equipment
  • Instrumentation and process control
  • Automotive & Industrial
  • Test equipment
  • Data acquisition systems
  • Precision regulators
  • Battery chargers
  • Base stations
  • Communications
  • Medical equipment

    • Also Recommended
    LM4050Lower Current Shunt Reference
    LM4132▲SOT-23 Precision Series Reference
    LM4140▲Ultra High Precision Reference



    Typical Application
    *click for larger image


    		Block Diagram
    click for larger image



    Typical Performance
    *click for larger image


    Parameters / ValuesLM4120 LM4132 LM4140
    Initial Accuracy (+/-) Max0.2, 0.5 % 0.2, 0.4, 0.1, 0.05, 0.5 % 0.1 %
    Reference Voltage1.8 V, 2.5 V, 5 V, 3 V, 4.096 V, 2.048 V, 3.3 V 1.8 V, 2.5 V, 4.096 V, 2.048 V, 3.3 V, 3.0 V 2.5 V, 1.25 V, 4.096 V, 2.048 V, 1.024 V
    Tempco, max (ppm/C)50 ppm 30, 20, 10 ppm 6, 3, 10 ppm
    Input Min Voltage3.3 Volt 2.2 Volt 1.8, 2.283, 2.735, 4.366 Volt
    Input Max Voltage14 Volt 5.5 Volt 5.5 Volt
    Dropout Voltage0.18 Volt 0.175 Volt 0.195, 0.16 Volt
    Quiescent Current0.16 mA 0.06 mA 0.23 mA
    Output Current5 mA 20 mA 8 mA
    Voltage Noise (rms)36 uV 170 uV 2.2 uV
    Long Term Stability (ppm/1000hr)100 ppm 50 ppm 60 ppm
    Temperature Min-40 deg C -40 deg C 0 deg C
    Temperature Max85 deg C 125 deg C 70 deg C
    AutomotiveNo No No
    PowerWiseYes Yes Yes

    Datasheets
    TitleSizeDateOther
    Language
    LM4120 Precision Micropower Low Dropout Voltage Reference723
    Kbytes    		24-Mar-05日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-1932: Application Note 1932 LMP2021MAEVAL - Bridge Sensor Instrumentation Amplifier Evaluation Board User Guide176
    Kbytes    		10-Dec-08 

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM4120AIM5-1.8/NOPB

    LM4120AIM5-1.8

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1480
    AVNET-EMWorldwide1000
    DIGI-KEYWorldwide2400
    MOUSERWorldwide995
    NEWARKAmericas874
    TAYLORAmericas1480
    		$1.00 each at 1K+ pcsreel
    of
    1000
    LM4120AIM5-2.0/NOPB

    LM4120AIM5-2.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide2964
    DIGI-KEYWorldwide2551
    MOUSERWorldwide875
    NEWARKAmericas755
    RS COMPONENTSWorldwide675
    TAYLORAmericas2964
    		$1.00 each at 1K+ pcsreel
    of
    1000
    LM4120AIM5-2.5/NOPB

    LM4120AIM5-2.5

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1685
    DIGI-KEYWorldwide7342
    MOUSERWorldwide929
    NEWARKAmericas146
    RS COMPONENTSWorldwide610
    RSL MICROAsia Pacific4000
    TAYLORAmericas3833
    		$1.00 each at 1K+ pcsreel
    of
    1000
    LM4120AIM5-3.0/NOPB

    LM4120AIM5-3.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1606
    AVNET-EMWorldwide2535
    DIGI-KEYWorldwide11039
    MOUSERWorldwide933
    NEWARKAmericas979
    RS COMPONENTSWorldwide775
    TAYLORAmericas12906
    		$1.00 each at 1K+ pcsreel
    of
    1000
    LM4120AIM5-3.3/NOPB

    LM4120AIM5-3.3

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1970
    AVNET-EMWorldwide1000
    DIGI-KEYWorldwide2901
    MOUSERWorldwide975
    NEWARKAmericas405
    RS COMPONENTSWorldwide10
    TAYLORAmericas5182
    		$1.00 each at 1K+ pcsreel
    of
    1000
    LM4120AIM5-4.1/NOPB

    LM4120AIM5-4.1

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1915
    AVNET-EMWorldwide878
    DIGI-KEYWorldwide3945
    MOUSERWorldwide755
    NEWARKAmericas292
    RS COMPONENTSWorldwide545
    TAYLORAmericas1915
    TECHMOSAAsia Pacific1000
    		$1.00 each at 1K+ pcsreel
    of
    1000
    LM4120AIM5-5.0/NOPB

    LM4120AIM5-5.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1000
    AVNET-EMWorldwide2000
    DIGI-KEYWorldwide1538
    NEWARKAmericas950
    RSL MICROAsia Pacific1000
    TAYLORAmericas1979
    		$1.00 each at 1K+ pcsreel
    of
    1000
    LM4120AIM5X-1.8/NOPB

    LM4120AIM5X-1.8

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.00 each at 1K+ pcsreel
    of
    3000
    LM4120AIM5X-2.0/NOPB

    LM4120AIM5X-2.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide3000
    		$1.00 each at 1K+ pcsreel
    of
    3000
    LM4120AIM5X-2.5/NOPB

    LM4120AIM5X-2.5

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide3000
    		$1.00 each at 1K+ pcsreel
    of
    3000
    LM4120AIM5X-3.0/NOPB

    LM4120AIM5X-3.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide2996
    		$1.00 each at 1K+ pcsreel
    of
    3000
    LM4120AIM5X-3.3/NOPB

    LM4120AIM5X-3.3

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.00 each at 1K+ pcsreel
    of
    3000
    LM4120AIM5X-4.1/NOPB

    LM4120AIM5X-4.1

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.00 each at 1K+ pcsreel
    of
    3000
    LM4120AIM5X-5.0/NOPB

    LM4120AIM5X-5.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.00 each at 1K+ pcsreel
    of
    3000
    LM4120IM5-1.8/NOPB

    LM4120IM5-1.8

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide964
    DIGI-KEYWorldwide1339
    MOUSERWorldwide750
    RS COMPONENTSWorldwide10
    		$0.85 each at 1K+ pcsreel
    of
    1000
    LM4120IM5-2.0/NOPB

    LM4120IM5-2.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide2164
    MOUSERWorldwide978
    RS COMPONENTSWorldwide25
    		$0.85 each at 1K+ pcsreel
    of
    1000
    LM4120IM5-2.5/NOPB

    LM4120IM5-2.5

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1000
    AVNET-EMWorldwide4643
    DIGI-KEYWorldwide3684
    MOUSERWorldwide660
    NEWARKAmericas1083
    RS COMPONENTSWorldwide855
    TAYLORAmericas1000
    		$0.85 each at 1K+ pcsreel
    of
    1000
    LM4120IM5-3.0/NOPB

    LM4120IM5-3.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide2000
    AVNET-EMWorldwide2000
    DIGI-KEYWorldwide4633
    MOUSERWorldwide1000
    NEWARKAmericas87
    RS COMPONENTSWorldwide10
    TAYLORAmericas2000
    		$0.85 each at 1K+ pcsreel
    of
    1000
    LM4120IM5-3.3/NOPB

    LM4120IM5-3.3

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1346
    DIGI-KEYWorldwide927
    MOUSERWorldwide870
    RS COMPONENTSWorldwide5
    TAYLORAmericas1346
    		$0.85 each at 1K+ pcsreel
    of
    1000
    LM4120IM5-4.1/NOPB

    LM4120IM5-4.1

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide800
    AVNET-EMWorldwide1000
    DIGI-KEYWorldwide1432
    MOUSERWorldwide776
    RS COMPONENTSWorldwide910
    TAYLORAmericas800
    		$0.85 each at 1K+ pcsreel
    of
    1000
    LM4120IM5-5.0/NOPB

    LM4120IM5-5.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide1427
    MOUSERWorldwide485
    NEWARKAmericas262
    RS COMPONENTSWorldwide640
    		$0.85 each at 1K+ pcsreel
    of
    1000
    LM4120IM5X-1.8/NOPB

    LM4120IM5X-1.8

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.85 each at 1K+ pcsreel
    of
    3000
    LM4120IM5X-2.0/NOPB

    LM4120IM5X-2.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.85 each at 1K+ pcsreel
    of
    3000
    LM4120IM5X-2.5/NOPB

    LM4120IM5X-2.5

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.85 each at 1K+ pcsreel
    of
    3000
    LM4120IM5X-3.0/NOPB

    LM4120IM5X-3.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide3000
    DIGI-KEYWorldwide0
    		$0.85 each at 1K+ pcsreel
    of
    3000
    LM4120IM5X-3.3/NOPB

    LM4120IM5X-3.3

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide2997
    		$0.85 each at 1K+ pcsreel
    of
    3000
    LM4120IM5X-4.1/NOPB

    LM4120IM5X-4.1

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.85 each at 1K+ pcsreel
    of
    3000
    LM4120IM5X-5.0/NOPB

    LM4120IM5X-5.0

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.85 each at 1K+ pcsreel
    of
    3000

    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 LM4120.

    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 LM4120 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LM4120AIM5-1.8/NOPB

    LM4120AIM5-1.8
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R21A
    XTT
    LM4120AIM5-2.0/NOPB

    LM4120AIM5-2.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R14A
    XTT
    LM4120AIM5-2.5/NOPB

    LM4120AIM5-2.5
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R08A
    XTT
    LM4120AIM5-3.0/NOPB

    LM4120AIM5-3.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R15A
    XTT
    LM4120AIM5-3.3/NOPB

    LM4120AIM5-3.3
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R16A
    XTT
    LM4120AIM5-4.1/NOPB

    LM4120AIM5-4.1
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R17A
    XTT
    LM4120AIM5-5.0/NOPB

    LM4120AIM5-5.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R18A
    XTT
    LM4120AIM5X-1.8/NOPB

    LM4120AIM5X-1.8
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R21A
    XTT
    LM4120AIM5X-2.0/NOPB

    LM4120AIM5X-2.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R14A
    XTT
    LM4120AIM5X-2.5/NOPB

    LM4120AIM5X-2.5
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R08A
    XTT
    LM4120AIM5X-3.0/NOPB

    LM4120AIM5X-3.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R15A
    XTT
    LM4120AIM5X-3.3/NOPB

    LM4120AIM5X-3.3
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R16A
    XTT
    LM4120AIM5X-4.1/NOPB

    LM4120AIM5X-4.1
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R17A
    XTT
    LM4120AIM5X-5.0/NOPB

    LM4120AIM5X-5.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R18A
    XTT
    LM4120IM5-1.8/NOPB

    LM4120IM5-1.8
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R21B
    XTT
    LM4120IM5-2.0/NOPB

    LM4120IM5-2.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R14B
    XTT
    LM4120IM5-2.5/NOPB

    LM4120IM5-2.5
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R08B
    XTT
    LM4120IM5-3.0/NOPB

    LM4120IM5-3.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R15B
    XTT
    LM4120IM5-3.3/NOPB

    LM4120IM5-3.3
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R16B
    XTT
    LM4120IM5-4.1/NOPB

    LM4120IM5-4.1
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R17B
    XTT
    LM4120IM5-5.0/NOPB

    LM4120IM5-5.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R18B
    XTT
    LM4120IM5X-1.8/NOPB

    LM4120IM5X-1.8
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R21B
    XTT
    LM4120IM5X-2.0/NOPB

    LM4120IM5X-2.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R14B
    XTT
    LM4120IM5X-2.5/NOPB

    LM4120IM5X-2.5
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R08B
    XTT
    LM4120IM5X-3.0/NOPB

    LM4120IM5X-3.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R15B
    XTT
    LM4120IM5X-3.3/NOPB

    LM4120IM5X-3.3
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R16B
    XTT
    LM4120IM5X-4.1/NOPB

    LM4120IM5X-4.1
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R17B
    XTT
    LM4120IM5X-5.0/NOPB

    LM4120IM5X-5.0
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		R18B
    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 LM4120.

    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 LM4120 is located at RoHS Status.

    CAD Symbols and Models
    Download LM4120 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM4120AIM5-1.8LFAST10201400027850002790251354
    LM4120AIM5-2.0LFAST10201400027850002790251354
    LM4120AIM5-2.5LFAST10201400027850002790251354
    LM4120AIM5-3.0LFAST10201400027850002790251354
    LM4120AIM5-3.3LFAST10201400027850002790251354
    LM4120AIM5-4.1LFAST10201400027850002790251354
    LM4120AIM5-5.0LFAST10201400027850002790251354
    LM4120AIM5X-1.8LFAST10201400027850002790251354
    LM4120AIM5X-2.0LFAST10201400027850002790251354
    LM4120AIM5X-2.5LFAST10201400027850002790251354
    LM4120AIM5X-3.0LFAST10201400027850002790251354
    LM4120AIM5X-3.3LFAST10201400027850002790251354
    LM4120AIM5X-4.1LFAST10201400027850002790251354
    LM4120AIM5X-5.0LFAST10201400027850002790251354
    LM4120IM5-1.8LFAST10201400027850002790251354
    LM4120IM5-2.0LFAST10201400027850002790251354
    LM4120IM5-2.5LFAST10201400027850002790251354
    LM4120IM5-3.0LFAST10201400027850002790251354
    LM4120IM5-3.3LFAST10201400027850002790251354
    LM4120IM5-4.1LFAST10201400027850002790251354
    LM4120IM5-5.0LFAST10201400027850002790251354
    LM4120IM5X-1.8LFAST10201400027850002790251354
    LM4120IM5X-2.0LFAST10201400027850002790251354
    LM4120IM5X-2.5LFAST10201400027850002790251354
    LM4120IM5X-3.0LFAST10201400027850002790251354
    LM4120IM5X-3.3LFAST10201400027850002790251354
    LM4120IM5X-4.1LFAST10201400027850002790251354
    LM4120IM5X-5.0LFAST10201400027850002790251354

    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 LM4120.

    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 LM4120 is located at RoHS Status.

    [Information as of 9-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation