National Semiconductor | High-performance Analog

 

 LM26001   
1.5A Switching Regulator with High Efficiency Sleep Mode from the PowerWise® Family		 Click link to Download

Features

  • LM26001Q is an Automotive Grade product that is AEC-Q100 grade 1 qualified (-40°C to +125°C operating junction temperature)
  • High efficiency sleep mode
  • 40 µA typical Iq in sleep mode
  • 10 µA typical Iq in shutdown mode
  • 3.0V minimum input voltage
  • 4.0V to 38V continuous input range
  • 1.5% reference accuracy
  • Cycle-by-cycle current limit
  • Adjustable Frequency (150 kHz to 500 kHz)
  • Synchronizable to an external clock
  • Power Good Flag
  • Forced PWM function
  • Adjustable Soft-start
  • TSSOP-16 exposed pad package
  • Thermal Shut Down

    • Description

    The LM26001 is a switching regulator designed for the high efficiency requirements of applications with stand-by modes. The device features a low-current sleep mode to maintain efficiency under light-load conditions and current-mode control for accurate regulation over a wide input voltage range. Quiescent current is reduced to 10 µA typically in shutdown mode and less than 40 µA in sleep mode. Forced PWM mode is also available to disable sleep mode.

    The LM26001 can deliver up to 1.5A of continuous load current with a fixed current limit, through the internal N-channel switch. The part has a wide input voltage range of 4.0V to 38V and can operate with input voltages as low as 3V during line transients.

    Operating frequency is adjustable from 150 kHz to 500 kHz with a single resistor and can be synchronized to an external clock.

    Other features include Power good, adjustable soft-start, enable pin, input under-voltage protection, and an internal bootstrap diode for reduced component count.


    Applications

  • Automotive Telematics
  • Navigation systems
  • In-Dash Instrumentation
  • Battery Powered Applications
  • Stand-by power for home gateways/set-top boxes

    • Also Recommended
    LM26001B▲18V Max Input Voltage
    LM26003▲3A Version



    Parameters / ValuesLM26001 LM26001B LM26003
    Output Current1500 mA 1500 mA 3000 mA
    Input Min Voltage3 Volt 3 Volt 3 Volt
    Input Max Voltage38 Volt 18 Volt 38 Volt
    Output Min1.25 Volt 1.25 Volt 1.25 Volt
    Output Max35 Volt 16 Volt 35 Volt
    Frequency Min150 kHz 150 kHz 150 kHz
    Frequency Max500 kHz 500 kHz 500 kHz
    Efficiency (peak)93 % 93 % 92 %
    On/Off PinYes Yes Yes
    PowerGood / Error FlagYes Yes Yes
    SoftStartYes Yes Yes
    Sync PinYes Yes Yes
    InvertingNo No No
    FlybackNo No No
    RegTypeSwitching Regulator Switching Regulator Switching Regulator
    Temperature Min-40 deg C -40 deg C -40 deg C
    Temperature Max125 deg C 125 deg C 125 deg C
    Adjustable OutputYes Yes Yes
    Adj Switch FrequencyYes Yes Yes
    PWM ModeCurrent Current Current
    TopologyBuck Buck Buck
    Special FeaturesHigh efficiency sleep mode, 1.5% output voltage accuracy, Quiescent current 40uA Sleep Mode High efficiency sleep mode, 1.5% output voltage accuracy, Quiescent current 50uA
    Step-DownYes Yes Yes
    Multiple Output CapabilityNo No No
    Output PowerUndefined Watt Undefined Watt Undefined Watt
    Output VoltageUndefined Volt Undefined Volt Undefined Volt
    Output Range1.25V to 35V 1.25V to 16V 1.25V to 35V
    Switching FrequencyUndefined kHz Undefined kHz Undefined kHz
    Feedback Voltage1.23 Volt 1.23 Volt 1.2 Volt
    Regulator FamilyUndefined Undefined Undefined
    AEC Q-100 Automotive Grade1 1
    AutomotiveYes Yes Yes
    PowerWiseYes Yes Yes
    Synchronous RectificationNo No No
    Quiescent Current.04 mA .04 mA .04 mA

    Datasheets
    TitleSizeDateOther
    Language
    LM26001 1.5A Switching Regulator with High Efficiency Sleep Mode526
    Kbytes    		29-Nov-10日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-1454: Application Note 1454 LM26001 Evaluation Board794
    Kbytes    		1-Sep-06 


    Other Technical Documents
    TitleTypeDate
    Counting the Micro AmpsExternal Article 2007-06-07

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM26001MXA/NOPB

    LM26001MXA

    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    AVNET-EMWorldwide226
    DIGI-KEYWorldwide1348
    FARNELLEurope and Asia37
    MOUSERWorldwide184
    NEWARKAmericas37
    		$2.85 each at 1K+ pcsrail
    of
    92
    LM26001MXAX/NOPB

    LM26001MXAX

    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$2.85 each at 1K+ pcsreel
    of
    2500
    LM26001QMXA/NOPB

    Auto Grade 1
    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 8 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide152
    MOUSERWorldwide184
    		$2.95 each at 1K+ pcsrail
    of
    92
    LM26001QMXAX/NOPB

    Auto Grade 1
    RoHS Status

    TSSOP EXP PAD    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$2.95 each at 1K+ pcsreel
    of
    2500

    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 LM26001.

    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 LM26001 is located at RoHS Status.

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM26001EVAL
    		1.5A Switching Regulator with High Efficiency Sleep ModeFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide2
    		$73.50 each1

    Description:

    LM26001 1.5A Switching Regulator with High Efficiency Sleep Mode

    Features:

    • 10 uA typical Iq in shutdown mode
    • 3.0V minimum input voltage
    • 4.0V to 38V continuous input range
    • 1.5% reference accuracy
    • Cycle-by-cycle current limit
    • Adjustable Frequency (150 kHz to 500 kHz)
    • Synchronizable to an external clock
    • Power Good Flag
    • Forced PWM function
    • Adjustable Soft-start
    • TSOOP-16 exposed pad package
    • Thermal Shut Down

    Applications:

    • Automotive Telematics
    • Navigation systems
    • In-Dash Instrumentation
    • Battery Powered Applications
    • Stand-by power for home gateways/set-top boxes

    Contents:

    • A fully assembled LM26001 evaluation board
    • LM26001 datasheet
    • LM26001 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
    LM26001MXA/NOPB

    LM26001MXA
    		56.396
    56.606
    		TSSOP EXP PAD161
    1    		260
    260    		DetailDownloadN/A
    		NSUZXYTT
    L26001
    MXA
    LM26001MXAX/NOPB

    LM26001MXAX
    		56.396
    56.606
    		TSSOP EXP PAD161
    1    		260
    260    		DetailDownloadN/A
    		NSUZXYTT
    L26001
    MXA
    LM26001QMXA/NOPB

    		56.396
    		TSSOP EXP PAD161260DetailDownloadN/A
    		NSUZXYTT
    L26001
    QMXA
    LM26001QMXAX/NOPB

    		56.396
    		TSSOP EXP PAD161260DetailDownloadN/A
    		NSUZXYTT
    L26001
    QMXA

    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 LM26001.

    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 LM26001 is located at RoHS Status.

    Design Tools
    TitleSizeDate
    Article - Counting the Micro Amps  

    CAD Symbols and Models
    Download LM26001 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM26001MXAABCD15004268000639400011814314958
    LM26001MXAXABCD15004268000639400011814314958
    LM26001QMXAABCD15004268000639400011814314958
    LM26001QMXAXABCD15004268000639400011814314958

    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 LM26001.

    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 LM26001 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