National Semiconductor | High-performance Analog

 

 LP3999   
Low Noise 150mA Voltage Regulator for RF/Analog Applications. 		Click link to Download

Features
  • 5 pin micro SMD Package
  • Stable with Ceramic Capacitor
  • Logic Controlled Enable
  • Fast Turn-on
  • Thermal-overload and short-circuit protection
  • -40 to +125°C junction temperature range for operation

    • Description

    The LP3999 regulator is designed to meet the requirements of portable wireless battery-powered applications and will provide an accurate output voltage with low noise and low quiescent current. Ideally suited for powering RF/Analog devices this device will also be used to meet more general circuit requirements.

    For battery powered applications the low dropout and low ground current provided by the device allows the lifetime of the battery to be maximized.The inclusion of an Enable(disable) control can be used by the system to further extend the battery lifetime by reducing the power consumption to virtually zero. Should the application require a device with an active disable function please refer to device LP3995.

    The LP3999 also features internal protection against short-circuit currents and over-temperature conditions.

    The LP3999 is designed to be stable with small 1.0 µF ceramic capacitors. The small outline of the LP3999 micro SMD package with the required ceramic capacitors can realize a system application within minimal board area.

    Performance is specified for a -40°C to +125°C temperature range.

    The device is available in micro SMD package. For other package options contact your local NSC sales office.

    The device is available in fixed output voltages in the ranges of 1.5V to 3.3V. For availability, please contact your local NSC sales office.

    Key Specification

  • 2.5V to 6.0V Input Range
  • Accurate Output Voltage; ±75mV / 2%
  • 60 mV Typical Dropout with 150 mA Load. Vout > 2.5V
  • Virtually Zero Quiescent Current when Disabled
  • 10 µVrms output noise over 10Hz to 100kHz
  • Stable with a 1 µF Output Capacitor
  • Guaranteed 150 mA Output Current
  • Fast Turn-on Time; 140 µs (Typ.)


    • Applications

  • GSM Portable Phones
  • CDMA Cellular Handsets
  • Wideband CDMA Cellular Handsets
  • Bluetooth Devices
  • Portable Information Appliances
  • Handheld MP3 Devices




    • Typical Application
    click for larger image


    		Block Diagram
    click for larger image



    Typical Performance
    click for larger image


     

    ParametersValues
    Output Current 150 mA
    Output Min 1.8, 2.4, 2.5, 3.3, 2.8, 1.5 Volt
    Input Min Voltage 2.5 Volt
    Input Max Voltage 6 Volt
    Dropout Voltage 0.06 Volt
    Adjustable Output No
    Quiescent Current 0.085 mA
    PSRR 60 dB
    Voltage Noise (rms) 30 uV
    On/Off Pin Yes
    PowerGood / Error Flag No
    RegType LDO
    Temperature Min -40 deg C
    Temperature Max 125 deg C
    Output Voltage 1.8, 2.4, 2.5, 3.3, 2.8, 1.5 Volt
    Output Max 1.8, 2.4, 2.5, 3.3, 2.8, 1.5 Volt

    Datasheets
    TitleSizeDateOther
    Language
    LP3999 Low Noise 150mA Voltage Regulator for RF/Analog Applications.691
    Kbytes    		7-Jul-06   


    Application Notes
    TitleSizeDateOther
    Language
    AN-2146: Application Note 2146 Power Design for SDI and other Noise Sensitive Devices516
    Kbytes    		9-Aug-11 


    Other Technical Documents
    TitleTypeDate
    Understanding Portable Applications Requirements to Improve System PerformancePower Designer 2007-03-22

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LP3999ITL-1.5/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    RS COMPONENTSWorldwide10
    TAYLORAmericas1000
    		$0.29 each at 1K+ pcsreel
    of
    250
    LP3999ITL-1.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide1988
    MOUSERWorldwide1250
    		$0.29 each at 1K+ pcsreel
    of
    250
    LP3999ITL-1875/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide246
    MOUSERWorldwide1250
    RS COMPONENTSWorldwide5
    		$0.29 each at 1K+ pcsreel
    of
    250
    LP3999ITL-2.4/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide245
    MOUSERWorldwide1250
    		$0.29 each at 1K+ pcsreel
    of
    250
    LP3999ITL-2.5/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide1056
    MOUSERWorldwide1250
    RS COMPONENTSWorldwide30
    		$0.29 each at 1K+ pcsreel
    of
    250
    LP3999ITL-2.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide785
    MOUSERWorldwide1250
    		$0.29 each at 1K+ pcsreel
    of
    250
    LP3999ITL-3.3/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 8 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide1149
    DIGI-KEYWorldwide1502
    RS COMPONENTSWorldwide195
    		$0.29 each at 1K+ pcsreel
    of
    250
    LP3999ITLX-1.5/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 16 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.29 each at 1K+ pcsreel
    of
    3000
    LP3999ITLX-1.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.29 each at 1K+ pcsreel
    of
    3000
    LP3999ITLX-1875/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.29 each at 1K+ pcsreel
    of
    3000
    LP3999ITLX-2.4/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 16 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.29 each at 1K+ pcsreel
    of
    3000
    LP3999ITLX-2.5/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.29 each at 1K+ pcsreel
    of
    3000
    LP3999ITLX-2.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.29 each at 1K+ pcsreel
    of
    3000
    LP3999ITLX-3.3/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide3000
    DIGI-KEYWorldwide0
    		$0.29 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 LP3999.

    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 LP3999 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LP3999ITL-1.5/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITL-1.8/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITL-1875/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITL-2.4/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITL-2.5/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITL-2.8/NOPB

    		1.768
    1.841
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITL-3.3/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITLX-1.5/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITLX-1.8/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITLX-1875/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITLX-2.4/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITLX-2.5/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITLX-2.8/NOPB

    		1.768
    1.841
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3999ITLX-3.3/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9

    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 LP3999.

    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 LP3999 is located at RoHS Status.

    CAD Symbols and Models
    Download LP3999 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LP3999ITL-1.5CMOS70213010015840003449464325
    LP3999ITL-1.8CMOS70213010015840003449464325
    LP3999ITL-1875CMOS70213010015840003449464325
    LP3999ITL-2.4CMOS70213010015840003449464325
    LP3999ITL-2.5CMOS70213010015840003449464325
    LP3999ITL-2.8CMOS70213010015840003449464325
    LP3999ITL-3.3CMOS70213010015840003449464325
    LP3999ITLX-1.5CMOS70213010015840003449464325
    LP3999ITLX-1.8CMOS70213010015840003449464325
    LP3999ITLX-1875CMOS70213010015840003449464325
    LP3999ITLX-2.4CMOS70213010015840003449464325
    LP3999ITLX-2.5CMOS70213010015840003449464325
    LP3999ITLX-2.8CMOS70213010015840003449464325
    LP3999ITLX-3.3CMOS70213010015840003449464325

    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 LP3999.

    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 LP3999 is located at RoHS Status.

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