National Semiconductor | High-performance Analog

 

 LM5009   
150 mA, 100V Step-Down Switching Regulator from the PowerWise® Family		 Click link to Download

Features

  • Integrated N-Channel MOSFET
  • Guaranteed 150 mA output current capability
  • Ultra-Fast Transient Response
  • No loop compensation required
  • Vin feed forward provides constant operating frequency
  • Switching frequency can exceed 600 kHz
  • Highly efficient operation
  • 2% accurate 2.5V feedback from -40°C to 125°C
  • Internal startup regulator
  • Intelligent current limit protection
  • External shutdown control
  • Thermal shutdown
  • MSOP-8 and thermally enhanced LLP packages

    • Description

    The LM5009 Step Down Switching Regulator features all of the functions needed to implement a low cost, efficient, Buck bias regulator. This device is capable of driving a 150 mA load current from a 9.5V to 95V input source. The switching frequency can exceed 600 kHz, depending on the input and output voltages. The output voltage may be set from 2.5V to 85V. This high voltage regulator contains an N-Channel buck switch and internal startup regulator. The device is easy to implement and is provided in the MSOP-8 and the thermally enhanced LLP-8 packages. The LM5009 is a well suited alternative to a high voltage monolithic or discrete linear solution where the power loss becomes unacceptable. The regulator’s operation is based on a control scheme using an ON time inversely proportional to VIN. This feature allows the operating frequency to remain relatively constant over load and input voltage variations. The control scheme requires no loop compensation, resulting in an ultra-fast transient response. An intelligent current limit is implemented with forced OFF time, which is inversely proportional to Vout. This scheme ensures short circuit protection while providing minimum foldback. Other features include: Thermal Shutdown, Vcc under-voltage lockout, Gate drive under-voltage lockout, and Maximum Duty Cycle limiter.

    WEBENCH® LM5009
        Min   Max   Range  
      VIN – V    9.50 – 95.00V  
      VOUT V    2.50 – 75.00V  
      IOUT A    ≤ 0.15A  
      Ambient Temp °C    ≤ 100°C  
    Footprint BOM Cost Efficiency
    What are WEBENCH® tools?


    Also Recommended
    LM25007▲42V, 0.5A Step-Down Switching Regulator
    LM5007▲500mA High Voltage (80V) Step-Down Switching Regulator
    LM5008▲350mA High Voltage (100V) Step-Down Switching Regulator
    LM5009A▲A Version: Minimum Input Voltage Decreased From 9.5V To 6V



    Typical Application
    click for larger image


    		Block Diagram
    *click for larger image



    Typical Performance
    *click for larger image


    Parameters / ValuesLM5009 LM25007 LM5007 LM5008 LM5009A
    Output Current150 mA 500 mA 500 mA 350 mA 150 mA
    Input Min Voltage9.5 Volt 9 Volt 9 Volt 9.5 Volt 6 Volt
    Input Max Voltage95 Volt 42 Volt 75 Volt 95 Volt 95 Volt
    Output Min2.5 Volt 2.5 Volt 2.5 Volt 2.5 Volt 2.5 Volt
    Output Max85 Volt 37 Volt 73 Volt 75 Volt 85 Volt
    Frequency Min50 kHz 50 kHz 50 kHz 50 kHz 50 kHz
    Frequency Max600 kHz 800 kHz 800 kHz 600 kHz 600 kHz
    Efficiency (peak)93 % 93 % 93 % 92 % 93 %
    On/Off PinYes Yes Yes Yes Yes
    PowerGood / Error FlagNo No No No No
    SoftStartNo No No No No
    Sync PinNo No No No No
    InvertingYes Yes Yes Yes Yes
    FlybackNo No No No No
    RegTypeSwitching Regulator Switching Regulator Switching Regulator Switching Regulator Switching Regulator
    Temperature Min-40 deg C -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 125 deg C
    Adjustable OutputYes Yes Yes Yes Yes
    Adj Switch FrequencyYes Yes Yes Yes Yes
    PWM ModeConstant on-time Constant on-time Constant on-time Constant on-time Constant On-Time
    TopologyBuck Buck Buck Buck Buck
    Special FeaturesInternal startup regulator for Vin>9V, internal 100V/0.25A N-FET, Pull Ron pin to ground for shutdown Internal startup regulator for Vin>9V, internal 42V/07A N-FET, Pull Ron pin to ground for shutdown Internal 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 Internal Startup regulator
    Step-DownYes Yes Yes Yes Yes
    Multiple Output CapabilityNo No No No No
    Output PowerUndefined Watt Undefined Watt Undefined Watt Undefined Watt
    Output VoltageUndefined Volt Undefined Volt Undefined Volt Undefined Volt
    Output Range2.5V to 85V 2.5V to 37V 2.5V to 73V 2.5V to 75V 2.5V to 85V
    Switching Frequency600 kHz 800 kHz 800 kHz 600 kHz 600 kHz
    Feedback Voltage2.5 Volt 2.5 Volt 2.5 Volt 2.5 Volt 2.5 Volt
    Regulator FamilyUndefined Undefined Undefined Undefined
    PowerWiseYes Yes
    Synchronous RectificationNo No No No No

    Datasheets
    TitleSizeDateOther
    Language
    LM5009 150 mA, 100V Step-Down Switching Regulator329
    Kbytes    		15-Nov-11   


    Application Notes
    TitleSizeDateOther
    Language
    AN-1962: Application Note 1962 LM5032 Interleaved Boost Evaluation Board2506
    Kbytes    		27-Aug-09 
    AN-1820: Application Note 1820 LM5032 Interleaved Boost Converter1942
    Kbytes    		30-May-08 
    AN-1445: Application Note 1445 LM5009 Evaluation Board484
    Kbytes    		14-Feb-11 
    AN-1481: Application Note 1481 Controlling Output Ripple and Achieving ESR Independence in Constant On-Time (COT) Regulator Designs574
    Kbytes    		27-Sep-06日本語
    中文
    AN-1955: Application Note 1955 LM5009A Evaluation Board487
    Kbytes    		2-Jun-09 


    Other Technical Documents
    TitleTypeDate
    Interleaving is Good for Boost Converters, TooExternal Article 2008-05-01

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5009MM/NOPB

    LM5009MM

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide908
    DIGI-KEYWorldwide0
    FARNELLEurope and Asia809
    NEWARKAmericas809
    RS COMPONENTSWorldwide235
    RSL MICROAsia Pacific3000
    TAYLORAmericas2736
    		$1.12 each at 1K+ pcsreel
    of
    1000
    LM5009MMX/NOPB

    LM5009MMX

    RoHS Status

    MINI SOIC    		Full production
    Lead Time: 8 weeks

     
    DistributorRegionQty
    ARROWWorldwide21000
    DIGI-KEYWorldwide0
    TAYLORAmericas21000
    		$1.12 each at 1K+ pcsreel
    of
    3500
    LM5009SDC/NOPB

    LM5009SDC

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1939
    DIGI-KEYWorldwide677
    FARNELLEurope and Asia251
    MOUSERWorldwide996
    NEWARKAmericas859
    TAYLORAmericas1939
    		$1.12 each at 1K+ pcsreel
    of
    1000
    LM5009SDCX/NOPB

    LM5009SDCX

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.12 each at 1K+ pcsreel
    of
    4500

    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 LM5009.

    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 LM5009 is located at RoHS Status.

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5009EVAL/NOPB

    		150 mA, 100V Step-Down Switching RegulatorFull production
    Lead Free (RoHS)

     
    DistributorRegionQty
    AVNET-EMWorldwide1
    DIGI-KEYWorldwide0
    TAYLORAmericas4
    		$40.50 each1
    LM5009 150mA, 100V Step-Down Switching Regulator

    General Features:
    • Integrated N-Channel MOSFET
    • Guaranteed 150mA output current capability
    • Ultra-Fast Transient Response
    • No loop compensation required
    • Vin feed forward provides constant operating frequency
    • Switching frequency can exceed 600kHz
    • Highly efficient operation
    • 2% accurate 2.5V feedback from - 40°C to 125°C
    • Internal startup regulator
    • Intelligent current limit protection
    • External shutdown control
    • Thermal shutdown
    • MSOP-8 and thermally enhanced LLP packages
    LM5009 Pitchpak includes:
    • A fully assembled LM5009 evaluation board.
    • LM5009 datasheet
    • LM5009 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
    LM5009MM/NOPB

    LM5009MM
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadN/A
    		ZXTT
    SLLB
    LM5009MMX/NOPB

    LM5009MMX
    		29.851
    30.002
    		MINI SOIC81
    1    		260
    260    		DetailDownloadN/A
    		ZXTT
    SLLB
    LM5009SDC/NOPB

    LM5009SDC
    		37.567
    37.68
    		LLP81
    1    		260
    260    		DetailDownloadN/A
    		NS
    UZXYTT
    5009SD
    LM5009SDCX/NOPB

    LM5009SDCX
    		37.567
    37.68
    		LLP81
    1    		260
    260    		DetailDownloadN/A
    		NS
    UZXYTT
    5009SD

    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 LM5009.

    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 LM5009 is located at RoHS Status.

    Design Tools
    TitleSizeDate
    LM5009 Quick Start Calculator  

    CAD Symbols and Models
    Download LM5009 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM5009MMABCD150XV2036010011554964327875145
    LM5009MMXABCD150XV2036010011554964327875145
    LM5009SDCABCD150XV2036010011554964327875145
    LM5009SDCXABCD150XV2036010011554964327875145

    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 LM5009.

    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 LM5009 is located at RoHS Status.

    [Information as of 8-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation