National Semiconductor | High-performance Analog

 

 LP3986   
Dual Micropower 150 mA Ultra Low-Dropout CMOS Voltage Regulators in micro SMD Package 		Click link to Download

Features
  • Miniature 8-I/O micro SMD package
  • Stable with 1µF ceramic and high quality tantalum output capacitors
  • Fast turn-on
  • Two independent regulators
  • Logic controlled enable
  • Over current and thermal protection

    • Description

    The LP3986 is a 150 mA dual low dropout regulator designed for portable and wireless applications with demanding performance and board space requirements.

    The LP3986 is stable with a small 1 µF ±30% ceramic output capacitor requiring smallest possible board space.

    The LP3986's performance is optimized for battery powered systems to deliver ultra low noise, extremely low dropout voltage and low quiescent current independent of load current. Regulator ground current increases very slightly in dropout, further prolonging the battery life. Optional external bypass capacitor reduces the output noise further without slowing down the load transient response. Fast start-up time is achieved by utilizing a speed-up circuit that actively pre-charges the bypass capacitor. Power supply rejection is better than 60 dB at low frequencies and 55 dB at 10 kHz. High power supply rejection is maintained at low input voltage levels common to battery operated circuits.

    The LP3986 is available in a micro SMD package. Performance is specified for a −40°C to +125°C temperature range. For single LDO applications, please refer to the LP3985 datasheet.

    Key Specification

  • Guaranteed 150 mA output current per regulator
  • 1nA typical quiescent current when both regulators in shutdown mode
  • 60 mV typical dropout voltage at 150 mA output current
  • 115 µA typical ground current
  • 40 µV typical output noise
  • 200 µs fast turn-on circuit
  • −40°C to +125°C junction temperature


    • Applications

  • CDMA cellular handsets
  • GSM cellular handsets
  • Portable information appliances
  • Portable battery applications




    • Typical Application
    click for larger image


    		Block Diagram
    click for larger image



    Typical Performance
    click for larger image


     

    ParametersValues
    Input Min Voltage 2.5 Volt
    Input Max Voltage 6 Volt
    Channels 2 Channels
    Output Accuracy 3 %
    Output1 VoutMin 3.0, 2.85, 2.8, 3.1 Volt
    Output1 VoutMax 3.0, 2.85, 2.8, 3.1 Volt
    Output1 IoutMax 300 mA
    Output1 Topology LDO
    Output2 VoutMin 3.0, 2.85, 2.8, 3.1 Volt
    Output2 VoutMax 3.0, 2.85, 2.8, 3.1 Volt
    Output2 IoutMax 150 mA
    Output2 Topology LDO
    Dropout Voltage 0.06 Volt
    Quiescent Current 0.115 mA
    On/Off Pin Yes
    PowerGood / Error Flag No
    Power on Reset No
    Ceramic Capacitors Stable Yes
    Output Range 3.1V, 3.0V, 2.8V, 2.85V
    Temperature Min -40 deg C
    Temperature Max 125 deg C
    Topology LDO Dual
    Multiple Output Capability Yes
    RegType LDO
    Step-Down Yes
    Adjustable Output No

    Datasheets
    TitleSizeDateOther
    Language
    LP3986 Dual Micropower 150 mA Ultra Low-Dropout CMOS Voltage Regulators in micro SMD Package300
    Kbytes    		8-Mar-07   


    Application Notes
    TitleSizeDateOther
    Language
    AN-1228: Application Note 1228 LP3986 microSMD Evaluation Board Instruction29
    Kbytes    		14-May-04 

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LP3986TL-2518/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide1392
    DIGI-KEYWorldwide1220
    		$0.35 each at 1K+ pcsreel
    of
    250
    LP3986TL-2525/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 10 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide230
    MOUSERWorldwide1000
    		$0.35 each at 1K+ pcsreel
    of
    250
    LP3986TL-2626/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 16 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    250
    LP3986TL-2818/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide1250
    MOUSERWorldwide1000
    		$0.35 each at 1K+ pcsreel
    of
    250
    LP3986TL-2828/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide114
    MOUSERWorldwide1000
    		$0.35 each at 1K+ pcsreel
    of
    250
    LP3986TL-285285/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide750
    DIGI-KEYWorldwide650
    MOUSERWorldwide1000
    		$0.35 each at 1K+ pcsreel
    of
    250
    LP3986TL-2929/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide1000
    MOUSERWorldwide1000
    		$0.35 each at 1K+ pcsreel
    of
    250
    LP3986TL-3028/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    250
    LP3986TL-3030/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide944
    MOUSERWorldwide750
    		$0.35 each at 1K+ pcsreel
    of
    250
    LP3986TL-3131/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 16 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    250
    LP3986TL-3333/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide545
    MOUSERWorldwide1000
    		$0.35 each at 1K+ pcsreel
    of
    250
    LP3986TLX-2518/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    3000
    LP3986TLX-2525/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    3000
    LP3986TLX-2626/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 16 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    3000
    LP3986TLX-2818/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    3000
    LP3986TLX-2828/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    3000
    LP3986TLX-2929/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    3000
    LP3986TLX-3028/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    3000
    LP3986TLX-3030/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    3000
    LP3986TLX-3333/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.35 each at 1K+ pcsreel
    of
    3000
    LP3986TLX285285/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide3000
    DIGI-KEYWorldwide0
    TAYLORAmericas3000
    		$0.35 each at 1K+ pcsreel
    of
    3000

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LP3986BL-2518
    		LP3986TL-2518
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-2525
    		LP3986TL-2525
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-2626
    		LP3986TL-2626
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-2818
    		LP3986TL-2818
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-2828
    		LP3986TL-2828
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-285285
    		LP3996SD-2828
    		NATIONAL SEMICONDUCTOR
    		05 Mar 2008
    LP3986BL-2929
    		LP3996SD-2828
    		NATIONAL SEMICONDUCTOR
    		05 Mar 2008
    LP3986BL-3028
    		LP3986TL-3028
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-3030
    		LP3996SD-3030
    		NATIONAL SEMICONDUCTOR
    		05 Mar 2008
    LP3986BL-3131
    		LP3996SD-3030
    		NATIONAL SEMICONDUCTOR
    		05 Mar 2008
    LP3986BL-3133
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-3333
    		LP3986TL-3333
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2518
    		LP3986TLX-2518
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2525
    		LP3986TLX-2525
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2528
    		LP3996SDX-2828
    		NATIONAL SEMICONDUCTOR
    		05 Mar 2008
    LP3986BLX-2626
    		LP3986TLX-2626
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2818
    		LP3986TLX-2818
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2828
    		LP3986TLX-2828
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2929
    		LP3986TLX-2929
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-3028
    		LP3986TLX-3028
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-3030
    		LP3986TLX-3030
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-3133
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-3333
    		LP3986TLX-3333
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX285285
    		LP3986TLX285285
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986TL-2528
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986TL-3133
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986TLX-2528
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986TLX-3131
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986TLX-3133
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008

    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 LP3986.

    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 LP3986 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LP3986TL-2518/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 30
    LP3986TL-2525/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 27
    LP3986TL-2626/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 28
    LP3986TL-2818/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 25
    LP3986TL-2828/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 10
    LP3986TL-285285/NOPB

    		2.947
    3.06
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 11
    LP3986TL-2929/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 15
    LP3986TL-3028/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 26
    LP3986TL-3030/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 12
    LP3986TL-3131/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 13
    LP3986TL-3333/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 17
    LP3986TLX-2518/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 30
    LP3986TLX-2525/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 27
    LP3986TLX-2626/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 28
    LP3986TLX-2818/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 25
    LP3986TLX-2828/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 10
    LP3986TLX-2929/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 15
    LP3986TLX-3028/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 26
    LP3986TLX-3030/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 12
    LP3986TLX-3333/NOPB

    		2.947
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 17
    LP3986TLX285285/NOPB

    		2.947
    3.06
    		MICRO SMD81260DetailDownloadN/A
    		XVD
    I 11

    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 LP3986.

    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 LP3986 is located at RoHS Status.

    CAD Symbols and Models
    Download LP3986 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LP3986TL-2518CMOS70213010015840003449464325
    LP3986TL-2525CMOS70213010015840003449464325
    LP3986TL-2626CMOS70213010015840003449464325
    LP3986TL-2818CMOS70213010015840003449464325
    LP3986TL-2828CMOS70213010015840003449464325
    LP3986TL-285285CMOS70213010015840003449464325
    LP3986TL-2929CMOS70213010015840003449464325
    LP3986TL-3028CMOS70213010015840003449464325
    LP3986TL-3030CMOS70213010015840003449464325
    LP3986TL-3131CMOS70213010015840003449464325
    LP3986TL-3333CMOS70213010015840003449464325
    LP3986TLX-2518CMOS70213010015840003449464325
    LP3986TLX-2525CMOS70213010015840003449464325
    LP3986TLX-2626CMOS70213010015840003449464325
    LP3986TLX-2818CMOS70213010015840003449464325
    LP3986TLX-2828CMOS70213010015840003449464325
    LP3986TLX-2929CMOS70213010015840003449464325
    LP3986TLX-3028CMOS70213010015840003449464325
    LP3986TLX-3030CMOS70213010015840003449464325
    LP3986TLX-3333CMOS70213010015840003449464325
    LP3986TLX285285CMOS70213010015840003449464325

    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 LP3986.

    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 LP3986 is located at RoHS Status.

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LP3986BL-2518
    		LP3986TL-2518
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-2525
    		LP3986TL-2525
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-2626
    		LP3986TL-2626
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-2818
    		LP3986TL-2818
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-2828
    		LP3986TL-2828
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-285285
    		LP3996SD-2828
    		NATIONAL SEMICONDUCTOR
    		05 Mar 2008
    LP3986BL-2929
    		LP3996SD-2828
    		NATIONAL SEMICONDUCTOR
    		05 Mar 2008
    LP3986BL-3028
    		LP3986TL-3028
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-3030
    		LP3996SD-3030
    		NATIONAL SEMICONDUCTOR
    		05 Mar 2008
    LP3986BL-3131
    		LP3996SD-3030
    		NATIONAL SEMICONDUCTOR
    		05 Mar 2008
    LP3986BL-3133
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BL-3333
    		LP3986TL-3333
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2518
    		LP3986TLX-2518
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2525
    		LP3986TLX-2525
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2528
    		LP3996SDX-2828
    		NATIONAL SEMICONDUCTOR
    		05 Mar 2008
    LP3986BLX-2626
    		LP3986TLX-2626
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2818
    		LP3986TLX-2818
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2828
    		LP3986TLX-2828
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-2929
    		LP3986TLX-2929
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-3028
    		LP3986TLX-3028
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-3030
    		LP3986TLX-3030
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-3133
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX-3333
    		LP3986TLX-3333
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986BLX285285
    		LP3986TLX285285
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986TL-2528
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986TL-3133
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986TLX-2528
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986TLX-3131
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008
    LP3986TLX-3133
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008

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