National Semiconductor | High-performance Analog

 

 LM5010A   
High Voltage 1A Step Down Switching Regulator 		Click link to Download

Features

  • Wide 6V to 75V Input Voltage Range
  • Valley Current Limiting At 1.25A
  • Programmable Switching Frequency Up To 1 MHz
  • Integrated 80V N-Channel Buck Switch
  • Integrated High Voltage Bias Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Nearly Constant Operating Frequency With Line and Load Variations
  • Adjustable Output Voltage
  • 2.5V, ±2% Feedback Reference
  • Programmable Soft-Start
  • Thermal shutdown
  • LM5010AQ is AEC-Q100 Grade 1 & 0 qualified

    • Description

    The LM5010A Step Down Switching Regulator is an enhanced version of the LM5010 with the input operating range extended to 6V minimum. The LM5010A features all the functions needed to implement a low cost, efficient, buck regulator capable of supplying in excess of 1A load current. This high voltage regulator integrates an N-Channel Buck Switch, and is available in thermally enhanced LLP-10 and TSSOP-14EP packages. The constant on-time regulation scheme requires no loop compensation resulting in fast load transient response and simplified circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The valley current limit detection is set at 1.25A. Additional features include: VCC under-voltage lock-out, thermal shutdown, gate drive under-voltage lock-out, and maximum duty cycle limiter.

    WEBENCH® LM5010A
        Min   Max   Range  
      VIN – V    6.00 – 75.00V  
      VOUT V    2.50 – 75.00V  
      IOUT A    ≤ 1.00A  
      Ambient Temp °C    ≤ 100°C  
    Footprint BOM Cost Efficiency
    What are WEBENCH® tools?


    Also Recommended
    LM5005▲Higher Current (2.5A) High Voltage (80V) Switching Reg With Softstart
    LM5007▲80V 0.5A Step Down Switching Regulator
    LM5008▲100V 0.35A Step Down Switching Regulator
    LM5010▲Lower Max Temperature 125 Deg C And Higher Input Voltage 8V
    LM511580V Sync Buck Controller (Iout 2A Up To 20A)



    Typical Application
    click for larger image


    		Block Diagram
    click for larger image



    Typical Performance
    *click for larger image


    Parameters / ValuesLM5010A LM5005 LM5007 LM5008 LM5010
    Output Current1000 mA 2500 mA 500 mA 350 mA 1000 mA
    Input Min Voltage6 Volt 7 Volt 9 Volt 9.5 Volt 8 Volt
    Input Max Voltage75 Volt 75 Volt 75 Volt 95 Volt 75 Volt
    Output Min2.5 Volt 1.23 Volt 2.5 Volt 2.5 Volt 2.5 Volt
    Output Max70 Volt 70 Volt 73 Volt 75 Volt 70 Volt
    Frequency Min50 kHz 50 kHz 50 kHz 50 kHz 50 kHz
    Frequency Max1000 kHz 500 kHz 800 kHz 600 kHz 1000 kHz
    Efficiency (peak)95 % 94 % 93 % 92 % 91 %
    On/Off PinYes Yes Yes Yes Yes
    PowerGood / Error FlagNo No No No No
    SoftStartYes Yes No No Yes
    Sync PinNo Yes 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 Max150 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 Current Constant on-time Constant on-time Constant on-time
    TopologyBuck Buck Buck Buck Buck
    Special FeaturesNo compensation required, ultra-fast transient response 1.5% feedback voltage accuracy, emulated current mode 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 No compensation required, ultra-fast transient response
    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 70V 1.23V to 70V 2.5V to 73V 2.5V to 75V 2.5V to 70V
    Switching Frequency1000 kHz 500 kHz 800 kHz 600 kHz 1000 kHz
    Feedback Voltage2.5 Volt Undefined Volt 2.5 Volt 2.5 Volt 2.5 Volt
    Regulator FamilySIMPLE SWITCHER, Undefined Undefined Undefined Undefined
    AEC Q-100 Automotive Grade1, 0
    AutomotiveYes Yes Yes Undefined
    Synchronous RectificationNo No No No No

    Datasheets
    TitleSizeDateOther
    Language
    LM5010A High Voltage 1A Step Down Switching Regulator406
    Kbytes    		2-Dec-08   

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5010AMH/NOPB


    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 12 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide1198
    DIGI-KEYWorldwide1343
    FARNELLEurope and Asia1022
    NEWARKAmericas311
    RS COMPONENTSWorldwide86
    TAYLORAmericas1198
    		$1.65 each at 1K+ pcsrail
    of
    94
    LM5010AMHX/NOPB

    LM5010AMHX

    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide5000
    DIGI-KEYWorldwide0
    TAYLORAmericas5000
    		$1.65 each at 1K+ pcsreel
    of
    2500
    LM5010AQ0MH/NOPB

    Auto Grade 0
    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 8 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide73
    DIGI-KEYWorldwide385
    FARNELLEurope and Asia153
    		$3.11 each at 1K+ pcsrail
    of
    94
    LM5010AQ0MHX/NOPB

    Auto Grade 0
    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 8 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$3.11 each at 1K+ pcsreel
    of
    2500
    LM5010AQ1MH/NOPB

    Auto Grade 1
    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 8 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide3731
    DIGI-KEYWorldwide199
    MOUSERWorldwide188
    		$2.48 each at 1K+ pcsrail
    of
    94
    LM5010AQ1MHX/NOPB

    Auto Grade 1
    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$2.48 each at 1K+ pcsreel
    of
    2500
    LM5010ASD/NOPB

    LM5010ASD

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide9000
    AVNET-EMWorldwide2000
    DIGI-KEYWorldwide2942
    FARNELLEurope and Asia813
    MOUSERWorldwide565
    NEWARKAmericas360
    TAYLORAmericas9000
    		$1.65 each at 1K+ pcsreel
    of
    1000
    LM5010ASDX/NOPB

    LM5010ASDX

    RoHS Status

    LLP    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$1.65 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 LM5010A.

    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 LM5010A is located at RoHS Status.

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM5010AEVAL/NOPB

    		High Voltage 1A Step Down Switching RegulatorFull production
    Lead Free (RoHS)

     
    DistributorRegionQty
    AVNET-EMWorldwide2
    DIGI-KEYWorldwide0
    MOUSERWorldwide4
    		$37.00 each1

    LM5010A High Voltage 1A Step Down Switching Regulator

    Features:

    • Wide 6V to 75V input voltage range
    • Valley current limiting at 1.25A
    • Programmable switching frequency up to 1MHz
    • Integrated 80V N-Channel buck switch
    • Integrated high voltage bias regulator
    • No loop compensation required
    • Ultra-fast transient response
    • Nearly constant operating frequency with line and load variations
    • Adjustable output voltage
    • 2.5V, ±2% feedback reference
    • Programmable soft-start
    • Thermal shutdown

    Applications:

    • Non-isolated telecommunications regulator
    • Secondary side post regulator
    • Power supply for Automtive Electronics

    Contents:

    • A fully assembled LM5010A evaluation board.
    • LM5010A datasheet
    • LM5010A 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
    LM5010AMH/NOPB

    		53.783
    54.004
    		TSSOP EXP PAD141260DetailDownloadN/A
    		NSUZXYTT
    L5010
    AMH
    LM5010AMHX/NOPB

    LM5010AMHX
    		53.783
    54.004
    		TSSOP EXP PAD141
    1    		260
    260    		DetailDownloadN/A
    		NSUZXYTT
    L5010
    AMH
    LM5010AQ0MH/NOPB

    		53.783
    		TSSOP EXP PAD141260DetailDownloadN/A
    		NSUZXYTT
    L5010A
    Q0MH
    LM5010AQ0MHX/NOPB

    		53.783
    		TSSOP EXP PAD141260DetailDownloadN/A
    		NSUZXYTT
    L5010A
    Q0MH
    LM5010AQ1MH/NOPB

    		53.783
    		TSSOP EXP PAD141260DetailDownloadN/A
    		NSUZXYTT
    L5010A
    Q1MH
    LM5010AQ1MHX/NOPB

    		53.783
    		TSSOP EXP PAD141260DetailDownloadN/A
    		NSUZXYTT
    L5010A
    Q1MH
    LM5010ASD/NOPB

    LM5010ASD
    		39.757
    39.906
    		LLP101
    1    		260
    260    		DetailDownloadN/A
    		NS
    UZXYTT
    L00065B
    LM5010ASDX/NOPB

    LM5010ASDX
    		39.757
    39.906
    		LLP101
    1    		260
    260    		DetailDownloadN/A
    		NS
    UZXYTT
    L00065B

    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 LM5010A.

    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 LM5010A is located at RoHS Status.

    Design Tools
    TitleSizeDate
    LM5010A Quick Start Calculator  

    CAD Symbols and Models
    Download LM5010A CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM5010AMHABCD150XV1038680025950002736338335
    LM5010AMHXABCD150XV1038680025950002736338335
    LM5010AQ0MHABCD150XV1038680025950002736338335
    LM5010AQ0MHXABCD150XV1038680025950002736338335
    LM5010AQ1MHABCD150XV1038680025950002736338335
    LM5010AQ1MHXABCD150XV1038680025950002736338335
    LM5010ASDABCD150XV1038680025950002736338335
    LM5010ASDXABCD150XV1038680025950002736338335

    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 LM5010A.

    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 LM5010A is located at RoHS Status.

    Requirements and Solutions for Automotive Power Management Applications
    Click image to play video in new window


    Requirements and Solutions for Automotive Power Management Applications
    Date: 2008-02-17
    Length: 00:40:00
    [Information as of 8-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation