National Semiconductor | High-performance Analog

 

 LM5007   
High Voltage (80V) Step Down Switching Regulator 		Click link to Download

Features

  • Integrated 80V, 0.7A N-Channel Buck Switch
  • Internal HV Vcc Regulator
  • No Control Loop Compensation Required
  • Ultra-Fast Transient Response
  • On Time Varies Inversely with Line Voltage
  • Operating Frequency Nearly Constant with Varying Line Voltage
  • Adjustable Output Voltage
  • Highly Efficient Operation
  • Precision Reference
  • Low Bias Current
  • Intelligent Current Limit Protection
  • Thermal Shutdown
  • External Shutdown Control

    • Description

    The LM5007 Step Down Switching Regulator features all of the functions needed to implement low cost, efficient, Buck bias regulators. This high voltage regulator contains an 80 V, 0.7A N-Channel Buck Switch. The device is easy to apply and is provided in the MSOP-8 and the thermally enhanced LLP-8 packages. The regulator is based on a hysteretic control scheme using an on time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant with load and input voltage variations. The hysteretic control requires no control loop compensation, while providing very fast load transient response. An intelligent current limit is implemented in the LM5007 with forced off time that is inversely proportional to VOUT. This current limiting scheme reduces load current foldback. Additional protection features include: Thermal Shutdown, Vcc undervoltage lockout, gate drive undervoltage lockout, and Max Duty Cycle limiter.

    WEBENCH® LM5007
        Min   Max   Range  
      VIN – V    9.00 – 75.00V  
      VOUT V    2.50 – 75.00V  
      IOUT A    ≤ 0.50A  
      Ambient Temp °C    ≤ 100°C  
    Footprint BOM Cost Efficiency
    What are WEBENCH® tools?


    Also Recommended
    LM2936LM2936 - 60V 50mA Linear Regulator
    LM5008▲100V 350mA Switching Regulator
    LM5010▲1A 80V Switching Regulator
    LM2597HV▲0.5A 60V Simple Switcher W/ Pgood
    LM317HV60V 1.5A Linear Regulator
    LM5007EPHigher Temperature Enhanced Plastic Version

    		Block Diagram
    *click for larger image



    Typical Performance
    *click for larger image


    Parameters / ValuesLM5007 LM5008 LM5010 LM2597HV
    Output Current500 mA 350 mA 1000 mA 500 mA
    Input Min Voltage9 Volt 9.5 Volt 8 Volt 4.5, 7, 4.75, 15 Volt
    Input Max Voltage75 Volt 95 Volt 75 Volt 60 Volt
    Output Min2.5 Volt 2.5 Volt 2.5 Volt 3.3, 1.23, 12, 5 Volt
    Output Max73 Volt 75 Volt 70 Volt 57, 3.3, 12, 5 Volt
    Frequency Min50 kHz 50 kHz 50 kHz 150 kHz
    Frequency Max800 kHz 600 kHz 1000 kHz 150 kHz
    Efficiency (peak)93 % 92 % 91 % 88, 80, 82 %
    On/Off PinYes Yes Yes Yes
    PowerGood / Error FlagNo No No Yes
    SoftStartNo No Yes Yes
    Sync PinNo No No No
    InvertingYes Yes Yes Yes
    FlybackNo No No No
    RegTypeSwitching Regulator Switching Regulator Switching Regulator Switching Regulator
    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
    Adjustable OutputYes Yes Yes Yes, No
    Adj Switch FrequencyYes Yes Yes No
    PWM ModeConstant on-time Constant on-time Constant on-time Voltage
    TopologyBuck Buck Buck Buck
    Special FeaturesInternal startup regulator for Vin>9V, internal 80V/0.7A N-FET, Pull Ron pin to ground for shutdown Internal startup regulator for Vin>9V, internal 100V/0.5A N-FET, Pull Ron pin to ground for shutdown No compensation required, ultra-fast transient response SIMPLE SWITCHER regulator, error output delay
    Step-DownYes Yes Yes Yes
    Multiple Output CapabilityNo No No No
    Output PowerUndefined Watt Undefined Watt Undefined Watt Undefined Watt
    Output VoltageUndefined Volt Undefined Volt Undefined Volt 3.3, Undefined, 5, 15 Volt
    Output Range2.5V to 73V 2.5V to 75V 2.5V to 70V 15V, 5V, 3.3V, 1.23V to 57V
    Switching Frequency800 kHz 600 kHz 1000 kHz 150 kHz
    Feedback Voltage2.5 Volt 2.5 Volt 2.5 Volt
    Regulator FamilyUndefined Undefined Undefined SIMPLE SWITCHER
    AutomotiveYes Undefined
    Synchronous RectificationNo No No No
    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5007MM/NOPB

    LM5007MM

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide2492
    AVNET-EMWorldwide725
    CEACAsia Pacific35000
    DIGI-KEYWorldwide5727
    FARNELLEurope and Asia3091
    MOUSERWorldwide2994
    NEWARKAmericas526
    RS COMPONENTSWorldwide305
    TAYLORAmericas24206
    		$1.50 each at 1K+ pcsreel
    of
    1000
    LM5007MMX/NOPB

    LM5007MMX

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide10500
    DIGI-KEYWorldwide0
    RSL MICROAsia Pacific7000
    TAYLORAmericas10500
    		$1.50 each at 1K+ pcsreel
    of
    3500
    LM5007SD/NOPB

    LM5007SD

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide2501
    AVNET-EMWorldwide1000
    DIGI-KEYWorldwide1839
    FARNELLEurope and Asia912
    MOUSERWorldwide748
    NEWARKAmericas161
    TAYLORAmericas2501
    		$1.50 each at 1K+ pcsreel
    of
    1000
    LM5007SDX/NOPB


    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.50 each at 1K+ pcsreel
    of
    4500

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LM5007MMEP
    		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 LM5007.

    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 LM5007 is located at RoHS Status.

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5007EVAL/NOPB

    		High Voltage (80V) Step Down Switching Regulator Evaluation BoardFull production
    Lead Free (RoHS)

     
    DistributorRegionQty
    DIGI-KEYWorldwide9
    FARNELLEurope and Asia6
    MOUSERWorldwide1
    NEWARKAmericas3
    RS COMPONENTSWorldwide2
    		$30.00 each1

    LM5007 High Voltage (80 V) Step Down Switching Regulator

    Features:

    • Integrated 80 V, 0.7 A N-Channel Buck Switch
    • Internal HV Vcc Regulator
    • No Control Loop Compensation Required
    • Ultra-Fast Transient Response
    • On Time Varies Inversely with Line Voltage
    • Operating Frequency Nearly Constant with Varying Line Voltage
    • Adjustable Output Voltage
    • Highly Efficient Operation
    • Precision Reference
    • Low Bias Current
    • Intelligent Current Limit Protection
    • Thermal Shutdown
    • External Shutdown Control

    Applications:

    • Non-Isolated Buck Regulator
    • Secondary High Voltage Post Regulator
    • +42 V Automotive Systems

    Contents:

    • A fully assembled LM5007 evaluation board
    • LM5007 appnote (Included in datasheet)
    • LM5007 datasheet

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5007SD-EVAL
    		High Voltage (80V) Step Down Switching RegulatorFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide1
    		$33.80 each1

    LM5007 High Voltage (80 V) Step Down Switching Regulator

    Features:

    • Integrated 80 V, 0.7 A N-Channel Buck Switch
    • Internal HV VCC Regulator
    • No Control Loop Compensation Required
    • Ultra-Fast Transient Response
    • On Time Varies Inversely with Line Voltage
    • Operating Frequency Nearly Constant with Varying Line Voltage
    • Adjustable Output Voltage
    • Highly Efficient Operation
    • Precision Reference
    • Low Bias Current
    • Intelligent Current Limit Protection
    • Thermal Shutdown
    • External Shutdown Control

    Applications:

    • Non-Isolated Buck Regulator
    • Secondary High Voltage Post Regulator
    • +42 V Automotive Systems

    Contents:

    • A fully assembled LM5007SD evaluation board
    • LM5007 datasheet
    • LM5007 evaluation board appnote



    National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

    Lead Free product status is available through the search tool located here

    Part Number(s)
    (NSID)    		Weight
    (milligrams)    		TypePinsMSL RatingPeak ReflowRoHS
    Status    		CAD SymbolsModelsPackage
    Marking
    Format
    LM5007MM/NOPB

    LM5007MM
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadspice file
    		ZXTT
    S81B
    LM5007MMX/NOPB

    LM5007MMX
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadspice file
    		ZXTT
    S81B
    LM5007SD/NOPB

    LM5007SD
    		40.107
    40.25
    		LLP81
    1    		260
    260    		DetailDownloadspice file
    		NS
    UZXYTT
    L00031B
    LM5007SDX/NOPB

    		40.107
    		LLP81260DetailDownloadspice file
    		NS
    UZXYTT
    L00031B

    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 LM5007.

    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 LM5007 is located at RoHS Status.

    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM5007MMABCD150XV1038680025950002736338335
    LM5007MMXABCD150XV1038680025950002736338335
    LM5007SDABCD150XV1038680025950002736338335
    LM5007SDXABCD150XV1038680025950002736338335

    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 LM5007.

    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 LM5007 is located at RoHS Status.

    Obsolete Versions
    Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
    LM5007MMEP
    		NONE
    		NATIONAL SEMICONDUCTOR
    		16 Nov 2008

    MotionFire Development Platform
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    MotionFire Development Platform
    Date: 2009-03-25
    Length: 0:30:00
    [Information as of 6-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation