National Semiconductor | High-performance Analog

 

 LP3982   
Micropower, Ultra Low-Dropout, Low-Noise, 300mA CMOS Regulator 		Click link to Download

Features
  • MAX8860 pin, package and spec. compatible
  • LLP space saving package
  • 300mA guaranteed output current
  • 120mV typical dropout @ 300mA
  • 90µA typical quiescent current
  • 1nA typical shutdown mode
  • 60dB typical PSRR
  • 2.5V to 6V input range
  • 120µs typical turn-on time
  • Stable with small ceramic output capacitors
  • 37µV RMS output voltage noise (10Hz to 100kHz)
  • Over temperature/over current protection
  • ±2% output voltage tolerance

    • Description

    The LP3982 low-dropout (LDO) CMOS linear regulator is available in 1.8V, 2.5V, 2.77V, 2.82V, 3.0V, 3.3V, and adjustable versions. They deliver 300mA of output current. Packaged in an 8-Pin MSOP, the LP3982 is pin and package compatible with Maxim's MAX8860. The LM3982 is also available in the small footprint LLP package.

    The LP3982 suits battery powered applications because of its shutdown mode (1nA typ), low quiescent current (90µA typ), and LDO voltage (120mV typ). The low dropout voltage allows for more utilization of a battery's available energy by operating closer to its end-of-life voltage. The LP3982's PMOS output transistor consumes relatively no drive current compared to PNP LDO regulators.

    This PMOS regulator is stable with small ceramic capacitive loads (2.2µF typ).

    These devices also include regulation fault detection, a bandgap voltage reference, constant current limiting and thermal overload protection.


    Applications

  • Wireless handsets
  • DSP core power
  • Battery powered electronics
  • Portable information appliances

    • WEBENCH® LP3982
        Min   Max   Range  
      VIN – V    2.50 – 6.00V  
      VOUT V    2.50 – 2.50V  
      IOUT A    ≤ 0.30A  
      Ambient Temp °C    ≤ 100°C  
    Footprint BOM Cost Efficiency
    What are WEBENCH® tools?


    Also Recommended
    LP38691▲Higher Load Capability & Lower Ground Current
    LP38693▲Higher Load Capability & Lower Ground Current
    LP3878-ADJ▲Improved Output Current

    		Block Diagram
    click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLP3982 LP38691 LP38693 LP3878-ADJ
    Output Current300 mA 500 mA 500 mA 800 mA
    Output Min1.8, 2.5, 2.82, 1.25, 3.3, 3 Volt 1 Volt
    Input Min Voltage2.5 Volt 2.7 Volt 2.7 Volt 2.5 Volt
    Input Max Voltage6 Volt 10 Volt 10 Volt 16 Volt
    Dropout Voltage0.12 Volt 0.725, 0.450, 0.550 Volt 0.725, 0.450, 0.425, 0.550 Volt 0.475 Volt
    Adjustable OutputNo, Yes No No Yes
    Quiescent Current0.09, 0.095 mA 0.055 mA 0.055 mA 0.18 mA
    On/Off PinYes No Yes Yes
    PowerGood / Error FlagYes No No No
    RegTypeLDO LDO LDO LDO
    Temperature Min-40 deg C -40 deg C -40 deg C -40 deg C
    Temperature Max85 deg C 125 deg C 125 deg C 125 deg C
    Output Voltage1.8, 2.5, 2.82, 3.3, 3 Volt 1.8, 5.0, 5.5, 2.5, 3.3 Volt 1.8, 5.0, 2.5, 3.3 Volt Undefined Volt
    Output Max1.8, 2.5, 6, 2.82, 3.3, 3 Volt 5.5 Volt

    Datasheets
    TitleSizeDateOther
    Language
    LP3982 Micropower, Ultra Low-Dropout, Low-Noise, 300mA CMOS Regulator747
    Kbytes    		20-Mar-06   

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LP3982ILD-1.8/NOPB

    LP3982ILD-1.8

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide15899
    DIGI-KEYWorldwide1990
    NEWARKAmericas898
    		$0.35 each at 1K+ pcsreel
    of
    1000
    LP3982ILD-2.5/NOPB

    LP3982ILD-2.5

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide1056
    DIGI-KEYWorldwide0
    TAYLORAmericas1056
    		$0.35 each at 1K+ pcsreel
    of
    1000
    LP3982ILD-3.0/NOPB

    LP3982ILD-3.0

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide11000
    AVNET-EMWorldwide5000
    DIGI-KEYWorldwide0
    MOUSERWorldwide844
    TAYLORAmericas11000
    TECHMOSAAsia Pacific4000
    		$0.35 each at 1K+ pcsreel
    of
    1000
    LP3982ILD-3.3/NOPB

    LP3982ILD-3.3

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1000
    AVNET-EMWorldwide2000
    DIGI-KEYWorldwide2332
    MOUSERWorldwide994
    NEWARKAmericas1699
    TAYLORAmericas1000
    		$0.35 each at 1K+ pcsreel
    of
    1000
    LP3982ILD-ADJ/NOPB

    LP3982ILD-ADJ

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide4083
    AVNET-EMWorldwide1000
    DIGI-KEYWorldwide5100
    FARNELLEurope and Asia11
    MOUSERWorldwide780
    NEWARKAmericas115
    RSL MICROAsia Pacific50000
    TAYLORAmericas4083
    TECHMOSAAsia Pacific29000
    		$0.35 each at 1K+ pcsreel
    of
    1000
    LP3982ILDX-1.8/NOPB

    LP3982ILDX-1.8

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    4500
    LP3982ILDX-3.0/NOPB

    LP3982ILDX-3.0

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    4500
    LP3982ILDX-3.3/NOPB

    LP3982ILDX-3.3

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    4500
    LP3982ILDX-ADJ/NOPB

    LP3982ILDX-ADJ

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    4500
    LP3982IMM-1.8/NOPB

    LP3982IMM-1.8

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide2000
    AVNET-EMWorldwide1000
    DIGI-KEYWorldwide1948
    MOUSERWorldwide1993
    NEWARKAmericas1505
    TAYLORAmericas4517
    		$0.34 each at 1K+ pcsreel
    of
    1000
    LP3982IMM-2.5/NOPB

    LP3982IMM-2.5

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide900
    AVNET-EMWorldwide1000
    DIGI-KEYWorldwide3478
    MOUSERWorldwide1875
    NEWARKAmericas1151
    TAYLORAmericas900
    		$0.34 each at 1K+ pcsreel
    of
    1000
    LP3982IMM-3.0/NOPB

    LP3982IMM-3.0

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide2000
    AVNET-EMWorldwide3000
    DIGI-KEYWorldwide0
    MOUSERWorldwide2000
    NEWARKAmericas1572
    TAYLORAmericas2000
    		$0.34 each at 1K+ pcsreel
    of
    1000
    LP3982IMM-3.3/NOPB

    LP3982IMM-3.3

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1467
    AVNET-EMWorldwide1148
    CEACAsia Pacific3000
    DIGI-KEYWorldwide1783
    NEWARKAmericas209
    RS COMPONENTSWorldwide260
    TAYLORAmericas1467
    		$0.34 each at 1K+ pcsreel
    of
    1000
    LP3982IMM-ADJ/NOPB

    LP3982IMM-ADJ

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide516
    AVNET-EMWorldwide5289
    DIGI-KEYWorldwide12506
    FARNELLEurope and Asia1376
    NEWARKAmericas657
    RS COMPONENTSWorldwide70
    TAYLORAmericas6937
    		$0.34 each at 1K+ pcsreel
    of
    1000
    LP3982IMMX-1.8/NOPB

    LP3982IMMX-1.8

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 8 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.34 each at 1K+ pcsreel
    of
    3500
    LP3982IMMX-2.5/NOPB

    LP3982IMMX-2.5

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.34 each at 1K+ pcsreel
    of
    3500
    LP3982IMMX-2.82/NOPB

    LP3982IMMX-2.82

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.34 each at 1K+ pcsreel
    of
    3500
    LP3982IMMX-ADJ/NOPB

    LP3982IMMX-ADJ

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide3500
    DIGI-KEYWorldwide0
    		$0.34 each at 1K+ pcsreel
    of
    3500

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LP3982ILD-2.77
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3982ILD-2.82
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3982ILDX-2.5
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3982ILDX-2.77
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3982IMM-2.82
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3982IMMX-3.3
    		LP3982IMM-3.3
    		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 LP3982.

    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 LP3982 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LP3982ILD-1.8/NOPB

    LP3982ILD-1.8
    		16.251
    16.298
    		LLP83
    1    		260
    235    		DetailDownloadN/A
    		XYTT
    LNB
    LP3982ILD-2.5/NOPB

    LP3982ILD-2.5
    		16.251
    16.298
    		LLP83
    1    		260
    235    		DetailDownloadN/A
    		XYTT
    LPB
    LP3982ILD-3.0/NOPB

    LP3982ILD-3.0
    		16.251
    16.298
    		LLP83
    1    		260
    235    		DetailDownloadN/A
    		XYTT
    LTB
    LP3982ILD-3.3/NOPB

    LP3982ILD-3.3
    		16.251
    16.298
    		LLP83
    1    		260
    235    		DetailDownloadN/A
    		XYTT
    LUB
    LP3982ILD-ADJ/NOPB

    LP3982ILD-ADJ
    		16.251
    16.298
    		LLP83
    1    		260
    235    		DetailDownloadN/A
    		XYTT
    LVB
    LP3982ILDX-1.8/NOPB

    LP3982ILDX-1.8
    		16.251
    16.298
    		LLP83
    1    		260
    235    		DetailDownloadN/A
    		XYTT
    LNB
    LP3982ILDX-3.0/NOPB

    LP3982ILDX-3.0
    		16.251
    16.298
    		LLP83
    1    		260
    235    		DetailDownloadN/A
    		XYTT
    LTB
    LP3982ILDX-3.3/NOPB

    LP3982ILDX-3.3
    		16.251
    16.298
    		LLP83
    1    		260
    235    		DetailDownloadN/A
    		XYTT
    LUB
    LP3982ILDX-ADJ/NOPB

    LP3982ILDX-ADJ
    		16.251
    16.298
    		LLP83
    1    		260
    235    		DetailDownloadN/A
    		XYTT
    LVB
    LP3982IMM-1.8/NOPB

    LP3982IMM-1.8
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadN/A
    		ZXTT
    LENB
    LP3982IMM-2.5/NOPB

    LP3982IMM-2.5
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadN/A
    		ZXTT
    LEPB
    LP3982IMM-3.0/NOPB

    LP3982IMM-3.0
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadN/A
    		ZXTT
    LETB
    LP3982IMM-3.3/NOPB

    LP3982IMM-3.3
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadN/A
    		ZXTT
    LEUB
    LP3982IMM-ADJ/NOPB

    LP3982IMM-ADJ
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadN/A
    		ZXTT
    LEVB
    LP3982IMMX-1.8/NOPB

    LP3982IMMX-1.8
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadN/A
    		ZXTT
    LENB
    LP3982IMMX-2.5/NOPB

    LP3982IMMX-2.5
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadN/A
    		ZXTT
    LEPB
    LP3982IMMX-2.82/NOPB

    LP3982IMMX-2.82
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadN/A
    		ZXTT
    LESB
    LP3982IMMX-ADJ/NOPB

    LP3982IMMX-ADJ
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadN/A
    		ZXTT
    LEVB

    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 LP3982.

    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 LP3982 is located at RoHS Status.

    CAD Symbols and Models
    Download LP3982 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LP3982ILD-1.8CMOS70213010015840003449464325
    LP3982ILD-2.5CMOS70213010015840003449464325
    LP3982ILD-3.0CMOS70213010015840003449464325
    LP3982ILD-3.3CMOS70213010015840003449464325
    LP3982ILD-ADJCMOS70213010015840003449464325
    LP3982ILDX-1.8CMOS70213010015840003449464325
    LP3982ILDX-3.0CMOS70213010015840003449464325
    LP3982ILDX-3.3CMOS70213010015840003449464325
    LP3982ILDX-ADJCMOS70213010015840003449464325
    LP3982IMM-1.8CMOS70213010015840003449464325
    LP3982IMM-2.5CMOS70213010015840003449464325
    LP3982IMM-3.0CMOS70213010015840003449464325
    LP3982IMM-3.3CMOS70213010015840003449464325
    LP3982IMM-ADJCMOS70213010015840003449464325
    LP3982IMMX-1.8CMOS70213010015840003449464325
    LP3982IMMX-2.5CMOS70213010015840003449464325
    LP3982IMMX-2.82CMOS70213010015840003449464325
    LP3982IMMX-ADJCMOS70213010015840003449464325

    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 LP3982.

    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 LP3982 is located at RoHS Status.

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LP3982ILD-2.77
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3982ILD-2.82
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3982ILDX-2.5
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3982ILDX-2.77
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3982IMM-2.82
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3982IMMX-3.3
    		LP3982IMM-3.3
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009

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