National Semiconductor | High-performance Analog

 

 LP3852   
1.5A Fast Response Ultra Low Dropout Linear Regulators 		Click link to Download

Features

  • Ultra low dropout voltage
  • Stable with selected ceramic capacitors
  • Low ground pin current
  • Load regulation of 0.06%
  • 10nA quiescent current in shutdown mode
  • Guaranteed output current of 1.5A DC
  • Available in TO-263, TO-220 and SOT-223 packages
  • Output voltage accuracy ± 1.5%
  • ^Error flag indicates output status
  • Sense option improves load regulation
  • Overtemperature/overcurrent protection
  • −40°C to +125°C junction temperature range

    • Description

    The LP3852/LP3855 series of fast ultra low-dropout linear regulators operate from a +2.5V to +7.0V input supply. Wide range of preset output voltage options are available. These ultra low dropout linear regulators respond very quickly to step changes in load, which makes them suitable for low voltage microprocessor applications. The LP3852/LP3855 are developed on a CMOS process which allows low quiescent current operation independent of output load current. This CMOS process also allows the LP3852/LP3855 to operate under extremely low dropout conditions.

    Dropout Voltage: Ultra low dropout voltage; typically 24mV at 150mA load current and 240mV at 1.5A load current.

    Ground Pin Current: Typically 4mA at 1.5A load current.

    Shutdown Mode: Typically 10nA quiescent current when the shutdown pin is pulled low.

    ^Error Flag: ^Error flag goes low when the output voltage drops 10% below nominal value.

    SENSE: Sense pin improves regulation at remote loads.

    Precision Output Voltage: Multiple output voltage options are available ranging from 1.8V to 5.0V with a guaranteed accuracy of ±1.5% at room temperature, and ±3.0% over all conditions (varying line, load, and temperature).


    Applications

  • Microprocessor power supplies
  • GTL, GTL+, BTL, and SSTL bus terminators
  • Power supplies for DSPs
  • SCSI terminator
  • Post regulators
  • High efficiency linear regulators
  • Battery chargers
  • Other battery powered applications

    • Also Recommended
    LP38852▲New! National's LP38k Family Of High
    LP38855▲Performance LDOs Power Digital ICs
    LP38858▲See More At LDO.NATIONAL.COM



    Typical Application
    click for larger image


    		Block Diagram
    click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLP3852 LP38852 LP38855 LP38858
    Output Current1500 mA 1500 mA 1500 mA 1500 mA
    Output Min1.8, 2.5, 3.3, 5 Volt 0.8 Volt 1.2, 0.8 Volt 1.2, 0.8 Volt
    Input Min Voltage2.5 Volt 0.93 Volt 1.38, 0.98 Volt 1.38, 0.98 Volt
    Input Max Voltage7 Volt 5.5 Volt 5.5 Volt 5.5 Volt
    Dropout Voltage0.24 Volt 0.130 Volt 0.130 Volt 0.18 Volt
    Adjustable OutputNo Yes No No
    Quiescent Current3 mA 10 mA 10 mA 10 mA
    On/Off PinYes Yes Yes No
    PowerGood / Error FlagYes No No No
    RegTypeLDO, Linear Regulator LDO LDO LDO
    Temperature Min-40 deg C -40 deg C -40 deg C -40 deg C
    Temperature Max125 deg C 125 deg C 125 deg C 125 deg C
    Output Voltage1.8, 2.5, 3.3, 5 Volt 1.2, 0.8 Volt 1.2, 0.8 Volt
    Output Max1.8, 2.5, 3.3, 5 Volt 1.8 Volt 1.2, 0.8 Volt 1.2, 0.8 Volt

    Datasheets
    TitleSizeDateOther
    Language
    LP3852 1.5A Fast Response Ultra Low Dropout Linear Regulators408
    Kbytes    		9-Mar-11日本語  

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LP3852EMP-1.8/NOPB

    LP3852EMP-1.8

    RoHS Status

    SOT-223    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide1846
    		$1.83 each at 1K+ pcsreel
    of
    1000
    LP3852EMP-2.5/NOPB

    LP3852EMP-2.5

    RoHS Status

    SOT-223    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide990
    DIGI-KEYWorldwide1600
    MOUSERWorldwide998
    NEWARKAmericas39
    TAYLORAmericas990
    		$1.83 each at 1K+ pcsreel
    of
    1000
    LP3852EMP-3.3/NOPB

    LP3852EMP-3.3

    RoHS Status

    SOT-223    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide2288
    MOUSERWorldwide994
    RS COMPONENTSWorldwide889
    		$1.83 each at 1K+ pcsreel
    of
    1000
    LP3852EMP-5.0/NOPB

    LP3852EMP-5.0

    RoHS Status

    SOT-223    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide670
    AVNET-EMWorldwide1819
    DIGI-KEYWorldwide1358
    TAYLORAmericas670
    		$1.83 each at 1K+ pcsreel
    of
    1000
    LP3852EMPX-1.8/NOPB

    LP3852EMPX-1.8

    RoHS Status

    SOT-223    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.83 each at 1K+ pcsreel
    of
    2000
    LP3852EMPX-2.5/NOPB

    LP3852EMPX-2.5

    RoHS Status

    SOT-223    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.83 each at 1K+ pcsreel
    of
    2000
    LP3852EMPX-3.3/NOPB

    LP3852EMPX-3.3

    RoHS Status

    SOT-223    		Full production
    Lead Time: 16 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.83 each at 1K+ pcsreel
    of
    2000
    LP3852EMPX-5.0/NOPB

    LP3852EMPX-5.0

    RoHS Status

    SOT-223    		Full production
    Lead Time: 16 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.83 each at 1K+ pcsreel
    of
    2000
    LP3852ES-1.8/NOPB

    LP3852ES-1.8

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide65
    AVNET-EMWorldwide167
    DIGI-KEYWorldwide1675
    RS COMPONENTSWorldwide1
    TAYLORAmericas65
    		$1.88 each at 1K+ pcsrail
    of
    45
    LP3852ES-2.5/NOPB

    LP3852ES-2.5

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide35
    AVNET-EMWorldwide198
    DIGI-KEYWorldwide191
    MOUSERWorldwide180
    TAYLORAmericas35
    		$1.88 each at 1K+ pcsrail
    of
    45
    LP3852ES-3.3/NOPB

    LP3852ES-3.3

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    DIGI-KEYWorldwide146
    MOUSERWorldwide128
    RS COMPONENTSWorldwide14
    		$1.88 each at 1K+ pcsrail
    of
    45
    LP3852ES-5.0/NOPB

    LP3852ES-5.0

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide30
    DIGI-KEYWorldwide195
    MOUSERWorldwide168
    RS COMPONENTSWorldwide13
    		$1.88 each at 1K+ pcsrail
    of
    45
    LP3852ESX-1.8/NOPB

    LP3852ESX-1.8

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide500
    DIGI-KEYWorldwide0
    		$1.88 each at 1K+ pcsreel
    of
    500
    LP3852ESX-2.5/NOPB

    LP3852ESX-2.5

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AITGAsia Pacific1000
    DIGI-KEYWorldwide0
    		$1.88 each at 1K+ pcsreel
    of
    500
    LP3852ESX-3.3/NOPB

    LP3852ESX-3.3

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AITGAsia Pacific1000
    DIGI-KEYWorldwide0
    		$1.88 each at 1K+ pcsreel
    of
    500
    LP3852ESX-5.0/NOPB

    LP3852ESX-5.0

    RoHS Status

    TO-263    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.88 each at 1K+ pcsreel
    of
    500
    LP3852ET-1.8/NOPB

    LP3852ET-1.8

    RoHS Status

    TO-220    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide75
    MOUSERWorldwide180
    		$1.88 each at 1K+ pcsrail
    of
    45
    LP3852ET-2.5/NOPB

    LP3852ET-2.5

    RoHS Status

    TO-220    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide58
    MOUSERWorldwide180
    RS COMPONENTSWorldwide31
    		$1.88 each at 1K+ pcsrail
    of
    45
    LP3852ET-3.3/NOPB

    LP3852ET-3.3

    RoHS Status

    TO-220    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide157
    DIGI-KEYWorldwide180
    MOUSERWorldwide180
    RS COMPONENTSWorldwide43
    		$1.88 each at 1K+ pcsrail
    of
    45
    LP3852ET-5.0/NOPB

    LP3852ET-5.0

    RoHS Status

    TO-220    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide260
    DIGI-KEYWorldwide364
    RS COMPONENTSWorldwide36
    		$1.88 each at 1K+ pcsrail
    of
    45

    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 LP3852.

    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 LP3852 is located at RoHS Status.

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LP3852EMP-1.8/NOPB

    LP3852EMP-1.8
    		119.55
    120.002
    		SOT-22351
    1    		260
    260    		DetailDownloadN/A
    		XYTT
    LHTB
    LP3852EMP-2.5/NOPB

    LP3852EMP-2.5
    		119.55
    120.002
    		SOT-22351
    1    		260
    260    		DetailDownloadN/A
    		XYTT
    LHUB
    LP3852EMP-3.3/NOPB

    LP3852EMP-3.3
    		119.55
    120.002
    		SOT-22351
    1    		260
    260    		DetailDownloadN/A
    		XYTT
    LHVB
    LP3852EMP-5.0/NOPB

    LP3852EMP-5.0
    		119.55
    120.002
    		SOT-22351
    1    		260
    260    		DetailDownloadN/A
    		XYTT
    LHXB
    LP3852EMPX-1.8/NOPB

    LP3852EMPX-1.8
    		119.55
    120.002
    		SOT-22351
    1    		260
    260    		DetailDownloadN/A
    		XYTT
    LHTB
    LP3852EMPX-2.5/NOPB

    LP3852EMPX-2.5
    		119.55
    120.002
    		SOT-22351
    1    		260
    260    		DetailDownloadN/A
    		XYTT
    LHUB
    LP3852EMPX-3.3/NOPB

    LP3852EMPX-3.3
    		119.55
    120.002
    		SOT-22351
    1    		260
    260    		DetailDownloadN/A
    		XYTT
    LHVB
    LP3852EMPX-5.0/NOPB

    LP3852EMPX-5.0
    		119.55
    120.002
    		SOT-22351
    1    		260
    260    		DetailDownloadN/A
    		XYTT
    LHXB
    LP3852ES-1.8/NOPB

    LP3852ES-1.8
    		1448.647
    1449.868
    		TO-26353
    3    		245
    235    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ES
    -1.8
    LP3852ES-2.5/NOPB

    LP3852ES-2.5
    		1448.647
    1449.868
    		TO-26353
    3    		245
    235    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ES
    -2.5
    LP3852ES-3.3/NOPB

    LP3852ES-3.3
    		1448.647
    1449.868
    		TO-26353
    3    		245
    235    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ES
    -3.3
    LP3852ES-5.0/NOPB

    LP3852ES-5.0
    		1448.647
    1449.868
    		TO-26353
    3    		245
    235    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ES
    -5.0
    LP3852ESX-1.8/NOPB

    LP3852ESX-1.8
    		1448.647
    1449.868
    		TO-26353
    3    		245
    235    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ES
    -1.8
    LP3852ESX-2.5/NOPB

    LP3852ESX-2.5
    		1448.647
    1449.868
    		TO-26353
    3    		245
    235    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ES
    -2.5
    LP3852ESX-3.3/NOPB

    LP3852ESX-3.3
    		1448.647
    1449.868
    		TO-26353
    3    		245
    235    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ES
    -3.3
    LP3852ESX-5.0/NOPB

    LP3852ESX-5.0
    		1448.647
    1449.868
    		TO-26353
    3    		245
    235    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ES
    -5.0
    LP3852ET-1.8/NOPB

    LP3852ET-1.8
    		1957.896
    1908.876
    		TO-22051
    1    		NA
    NA    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ET
    -1.8
    LP3852ET-2.5/NOPB

    LP3852ET-2.5
    		1957.896
    1908.876
    		TO-22051
    1    		NA
    NA    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ET
    -2.5
    LP3852ET-3.3/NOPB

    LP3852ET-3.3
    		1957.896
    1908.876
    		TO-22051
    1    		NA
    NA    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ET
    -3.3
    LP3852ET-5.0/NOPB

    LP3852ET-5.0
    		1957.896
    1908.876
    		TO-22051
    1    		NA
    NA    		DetailDownloadN/A
    		NSUZXYTTE#
    LP3852ET
    -5.0

    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 LP3852.

    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 LP3852 is located at RoHS Status.

    CAD Symbols and Models
    Download LP3852 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LP3852EMP-1.8CS065247473430552700011568301341
    LP3852EMP-2.5CS065247473430552700011568301341
    LP3852EMP-3.3CS065247473430552700011568301341
    LP3852EMP-5.0CS065247473430552700011568301341
    LP3852EMPX-1.8CS065247473430552700011568301341
    LP3852EMPX-2.5CS065247473430552700011568301341
    LP3852EMPX-3.3CS065247473430552700011568301341
    LP3852EMPX-5.0CS065247473430552700011568301341
    LP3852ES-1.8CS065247473430552700011568301341
    LP3852ES-2.5CS065247473430552700011568301341
    LP3852ES-3.3CS065247473430552700011568301341
    LP3852ES-5.0CS065247473430552700011568301341
    LP3852ESX-1.8CS065247473430552700011568301341
    LP3852ESX-2.5CS065247473430552700011568301341
    LP3852ESX-3.3CS065247473430552700011568301341
    LP3852ESX-5.0CS065247473430552700011568301341
    LP3852ET-1.8CS065247473430552700011568301341
    LP3852ET-2.5CS065247473430552700011568301341
    LP3852ET-3.3CS065247473430552700011568301341
    LP3852ET-5.0CS065247473430552700011568301341

    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 LP3852.

    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 LP3852 is located at RoHS Status.

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