National Semiconductor | High-performance Analog

 

 LP3995   
Micropower 150mA CMOS Voltage Regulator with Active Shutdown. 		Click link to Download

Features

  • 5 pin micro SMD Package
  • 6 pin LLP Package
  • Stable with Ceramic Capacitor
  • Logic Controlled Enable
  • Fast Turn-on
  • Active Disable for Fast Turn-off.
  • Thermal-overload and Short-circuit Protection
  • −40 to +125°C Junction Temperature Range for Operation

    • Description

    The LP3995 linear regulator is designed to meet the requirements of portable 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 needs in which a fast turn-off is essential.

    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 Enable(/Disable) control allows the system to further extend the battery lifetime by reducing the power consumption to virtually zero.

    The Enable(/Disable) function on the device incorporates an active discharge circuit on the output for faster device shutdown. Where the fast turn-off is not required the LP3999 linear regulator is recommended.

    The LP3995 also features internal protection against short-circuit currents and over-temperature conditions.

    The LP3995 is designed to be stable with small 1.0 µF ceramic capacitors. The small outline of the LP3995 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 and LLP package. For other package options contact your local NSC sales office.

    The device is available in fixed output voltages in the ranges 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
  • Virtually Zero Quiescent Current when Disabled
  • Low Output Voltage Noise
  • Stable with a 1 µF Output Capacitor
  • Guaranteed 150 mA Output Current
  • Fast Turn-on; 30 µs (Typ.)
  • Fast Turn-off; 175 µs (Typ.)


    • Applications

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

    • Also Recommended
    LP2983▲0.9V, 1.0V And 1.2V Output Options



    Typical Application
    click for larger image


    		Block Diagram
    click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLP3995 LP2983
    Output Current150 mA 150 mA
    Output Min1.9, 3, 2.8 Volt 1, 1.2 Volt
    Input Min Voltage2.5, 2.9, 3.1 Volt 2.2 Volt
    Input Max Voltage6 Volt 16 Volt
    Dropout Voltage0.06 Volt 1, 1.2 Volt
    Adjustable OutputNo No
    Quiescent Current0.085 mA 0.065 mA
    PSRR60 dB
    Voltage Noise (rms)25 uV
    On/Off PinYes Yes
    PowerGood / Error FlagNo No
    RegTypeLDO LDO
    Temperature Min-40 deg C -40 deg C
    Temperature Max125 deg C 125 deg C
    Output Voltage1.9, 3, 2.8 Volt 1, 1.2 Volt
    Output Max1.9, 3, 2.8 Volt 1, 1.2 Volt

    Datasheets
    TitleSizeDateOther
    Language
    LP3995 Micropower 150mA CMOS Voltage Regulator with Active Shutdown.350
    Kbytes    		4-Jan-08   


    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
    LP3995ILD-1.5/NOPB

    LP3995ILD-1.5

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.36 each at 1K+ pcsreel
    of
    1000
    LP3995ILD-1.8/NOPB

    LP3995ILD-1.8

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide8899
    DIGI-KEYWorldwide2876
    		$0.36 each at 1K+ pcsreel
    of
    1000
    LP3995ILD-2.8/NOPB

    LP3995ILD-2.8

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide3958
    MOUSERWorldwide1000
    		$0.36 each at 1K+ pcsreel
    of
    1000
    LP3995ILD-3.0/NOPB

    LP3995ILD-3.0

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1000
    AVNET-EMWorldwide1000
    DIGI-KEYWorldwide3508
    MOUSERWorldwide1000
    TAYLORAmericas1000
    		$0.36 each at 1K+ pcsreel
    of
    1000
    LP3995ILDX-2.8/NOPB


    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide4500
    DIGI-KEYWorldwide0
    		$0.36 each at 1K+ pcsreel
    of
    4500
    LP3995ITL-1.5/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide0
    RS COMPONENTSWorldwide45
    		$0.32 each at 1K+ pcsreel
    of
    250
    LP3995ITL-1.6/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 12 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.32 each at 1K+ pcsreel
    of
    250
    LP3995ITL-1.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide988
    MOUSERWorldwide1000
    RS COMPONENTSWorldwide215
    		$0.32 each at 1K+ pcsreel
    of
    250
    LP3995ITL-1.9/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide1012
    MOUSERWorldwide1000
    RS COMPONENTSWorldwide5
    		$0.32 each at 1K+ pcsreel
    of
    250
    LP3995ITL-2.1/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide0
    RS COMPONENTSWorldwide5
    		$0.32 each at 1K+ pcsreel
    of
    250
    LP3995ITL-2.5/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 12 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide1000
    		$0.32 each at 1K+ pcsreel
    of
    250
    LP3995ITL-2.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide1000
    RS COMPONENTSWorldwide210
    		$0.32 each at 1K+ pcsreel
    of
    250
    LP3995ITL-2.85/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide184
    MOUSERWorldwide1000
    		$0.32 each at 1K+ pcsreel
    of
    250
    LP3995ITL-3.0/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide1607
    MOUSERWorldwide888
    RS COMPONENTSWorldwide10
    		$0.32 each at 1K+ pcsreel
    of
    250
    LP3995ITLX-1.5/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.32 each at 1K+ pcsreel
    of
    3000
    LP3995ITLX-1.6/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 8 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.32 each at 1K+ pcsreel
    of
    3000
    LP3995ITLX-1.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    TECHMOSAAsia Pacific60000
    		$0.32 each at 1K+ pcsreel
    of
    3000
    LP3995ITLX-1.9/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.32 each at 1K+ pcsreel
    of
    3000
    LP3995ITLX-2.1/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 16 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.32 each at 1K+ pcsreel
    of
    3000
    LP3995ITLX-2.5/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 16 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.32 each at 1K+ pcsreel
    of
    3000
    LP3995ITLX-2.8/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    TAYLORAmericas3000
    		$0.32 each at 1K+ pcsreel
    of
    3000
    LP3995ITLX-2.85/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$0.32 each at 1K+ pcsreel
    of
    3000
    LP3995ITLX-3.0/NOPB


    RoHS Status

    MICRO SMD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    TECHMOSAAsia Pacific24000
    		$0.32 each at 1K+ pcsreel
    of
    3000

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LP3995ILD-1.6
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3995ILDX-1.8
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3995ILDX-3.0
    		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 LP3995.

    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 LP3995 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LP3995ILD-1.5/NOPB

    LP3995ILD-1.5
    		21.851
    21.906
    		LLP63
    1    		260
    235    		DetailDownloadN/A
    		ZXYTT
    L020B
    LP3995ILD-1.8/NOPB

    LP3995ILD-1.8
    		21.851
    21.906
    		LLP63
    1    		260
    235    		DetailDownloadN/A
    		ZXYTT
    L022B
    LP3995ILD-2.8/NOPB

    LP3995ILD-2.8
    		21.851
    21.906
    		LLP63
    1    		260
    235    		DetailDownloadN/A
    		ZXYTT
    L026B
    LP3995ILD-3.0/NOPB

    LP3995ILD-3.0
    		21.851
    21.906
    		LLP63
    1    		260
    235    		DetailDownloadN/A
    		ZXYTT
    L030B
    LP3995ILDX-2.8/NOPB

    		21.851
    		LLP63260DetailDownloadN/A
    		ZXYTT
    L026B
    LP3995ITL-1.5/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITL-1.6/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITL-1.8/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITL-1.9/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITL-2.1/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITL-2.5/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITL-2.8/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITL-2.85/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITL-3.0/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITLX-1.5/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITLX-1.6/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITLX-1.8/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITLX-1.9/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITLX-2.1/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITLX-2.5/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITLX-2.8/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITLX-2.85/NOPB

    		1.768
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I 9
    LP3995ITLX-3.0/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 LP3995.

    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 LP3995 is located at RoHS Status.

    CAD Symbols and Models
    Download LP3995 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LP3995ILD-1.5CMOS70213010015840003449464325
    LP3995ILD-1.8CMOS70213010015840003449464325
    LP3995ILD-2.8CMOS70213010015840003449464325
    LP3995ILD-3.0CMOS70213010015840003449464325
    LP3995ILDX-2.8CMOS70213010015840003449464325
    LP3995ITL-1.5CMOS70213010015840003449464325
    LP3995ITL-1.6CMOS70213010015840003449464325
    LP3995ITL-1.8CMOS70213010015840003449464325
    LP3995ITL-1.9CMOS70213010015840003449464325
    LP3995ITL-2.1CMOS70213010015840003449464325
    LP3995ITL-2.5CMOS70213010015840003449464325
    LP3995ITL-2.8CMOS70213010015840003449464325
    LP3995ITL-2.85CMOS70213010015840003449464325
    LP3995ITL-3.0CMOS70213010015840003449464325
    LP3995ITLX-1.5CMOS70213010015840003449464325
    LP3995ITLX-1.6CMOS70213010015840003449464325
    LP3995ITLX-1.8CMOS70213010015840003449464325
    LP3995ITLX-1.9CMOS70213010015840003449464325
    LP3995ITLX-2.1CMOS70213010015840003449464325
    LP3995ITLX-2.5CMOS70213010015840003449464325
    LP3995ITLX-2.8CMOS70213010015840003449464325
    LP3995ITLX-2.85CMOS70213010015840003449464325
    LP3995ITLX-3.0CMOS70213010015840003449464325

    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 LP3995.

    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 LP3995 is located at RoHS Status.

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LP3995ILD-1.6
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3995ILDX-1.8
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009
    LP3995ILDX-3.0
    		NONE
    		NATIONAL SEMICONDUCTOR
    		01 Dec 2009

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