National Semiconductor | High-performance Analog

 

 LM3671   
2MHz, 600mA Step-Down DC-DC Converter from the PowerWise® Family		 Click link to Download

Features

  • 16 µA typical quiescent current
  • 600 mA maximum load capability
  • 2 MHz PWM fixed switching frequency (typ.)
  • Automatic PFM/PWM mode switching
  • Internal synchronous rectification for high efficiency
  • Internal soft start
  • 0.01 µA typical shutdown current
  • Operates from a single Li-Ion cell battery
  • Only three tiny surface-mount external components required (one inductor, two ceramic capacitors)
  • Current overload and Thermal shutdown protection
  • Available in fixed output voltages and adjustable version
  • LM3671Q is an Automotive Grade product that is AEC-Q100 Grade 1 qualified
  • SOT23-5, 5-bump micro SMD and 6-pin LLP packages

    • Description

    The LM3671 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7V to 5.5V. It provides up to 600 mA load current, over the entire input voltage range. There are several different fixed voltage output options available as well as an adjustable output voltage version range from 1.1V to 3.3V.

    The device offers superior features and performance for mobile phones and similar portable systems. Automatic intelligent switching between PWM low-noise and PFM low-current mode offers improved system control. During PWM mode, the device operates at a fixed-frequency of 2 MHz (typ.). Hysteretic PFM mode extends the battery life by reducing the quiescent current to 16 µA (typ.) during light load and standby operation. Internal synchronous rectification provides high efficiency during PWM mode operation. In shutdown mode, the device turns off and reduces battery consumption to 0.01 µA (typ.).

    The LM3671 is available in SOT23-5, tiny 5-bump micro SMD and a 6-pin LLP packages in leaded (PB) and lead-free (NO PB) versions. A high-switching frequency of 2 MHz (typ.) allows use of tiny surface-mount components. Only three external surface-mount components, an inductor and two ceramic capacitors, are required.


    Applications

  • Mobile phones
  • PDAs
  • MP3 players
  • W-LAN
  • Portable instruments
  • Digital still cameras
  • Portable Hard disk drives
  • Automotive

    • WEBENCH® LM3671
        Min   Max   Range  
      VIN – V    2.50 – 5.50V  
      VOUT V    1.10 – 3.30V  
      IOUT A    ≤ 0.60A  
      Ambient Temp °C    ≤ 100°C  
    Footprint BOM Cost Efficiency
    What are WEBENCH® tools?


    Also Recommended
    LM2651▲1.5A Output Current
    LM2734▲1A Output Current, Wider Vin Range, SOT-23
    LM3670▲1 MHz Switching Frequency, 350mA Output Current
    LM3674▲With PWM Only Mode



    Typical Application
    click for larger image


    		Block Diagram
    click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLM3671 LM2651 LM2734 LM3670 LM3674
    Output Current600 mA 1500 mA 1000 mA 350 mA 600 mA
    Input Min Voltage2.7 Volt 4 Volt 3 Volt 2.5 Volt 2.7 Volt
    Input Max Voltage5.5 Volt 14 Volt 20 Volt 5.5 Volt 5.5 Volt
    Output Min1.8, 2.5, 1.1, 1.875, 1.2, 3.3, 1.375, 1.25, 2.8, 1.6, 1.5 Volt 3.3, 1.24 Volt 0.8 Volt 1.8, 0.7, 1.875, 1.2, 3.3, 1.6, 1.5 Volt 1.8, 1.1, 1.875, 1.2, 2.8, 1.5 Volt
    Output Max1.8, 2.5, 1.875, 1.2, 3.3, 1.375, 1.25, 2.8, 1.6, 1.5 Volt 3.3, 13 Volt 18 Volt 1.8, 2.5, 1.875, 1.2, 3.3, 1.6, 1.5 Volt 1.8, 1.875, 1.2, 3.3, 2.8, 1.5 Volt
    Frequency Min2000 kHz 300 kHz 1600, 550 kHz 1000 kHz 2000 kHz
    Frequency Max2000 kHz 300 kHz 1600, 550 kHz 1000 kHz 2000 kHz
    Efficiency (peak)96 % 97 % 90, 94 % 95 % 96 %
    Integrated InductorNo No No No
    PowerGood / Error FlagNo No No No No
    SoftStartYes Yes Yes Yes Yes
    Sync PinNo No No No No
    InvertingNo No No No No
    FlybackNo No No No No
    RegTypeSwitching Regulator Switching Regulator Switching Regulator Switching Regulator Switching Regulator
    Temperature Min-30 deg C -40 deg C -40 deg C -40 deg C -30 deg C
    Temperature Max85 deg C 125 deg C 125 deg C 85 deg C 85 deg C
    Adjustable OutputNo, Yes Yes, No Yes No, Yes No, Yes
    Adj Switch FrequencyNo No No No No
    PWM ModeVoltage with input feedforward Current Mode Control Current Voltage with input feedforward Voltage with input feedforward
    TopologySynchronous Buck Synchronous Buck Buck Synchronous Buck Synchronous Buck
    Special FeaturesPin-selectable PWM/PFM modes, Iq=15uA, 100% duty cycle, internal compensation, ceramic-cap stable, only 3 external components Max. Iq at shutdown is 20uA over full temp range, 7uA typical OVP, internal compensation, 30nA shutdown current, pulse-by-pulse current limit Pin-selectable PWM/PFM modes, Iq=15uA, 100% duty cycle, internal compensation, ceramic-cap stable, only 3 external components Pin-selectable PWM/PFM modes, Iq=15uA, 100% duty cycle, internal compensation, ceramic-cap stable, only 3 external components
    Step-DownYes Yes Yes Yes Yes
    Multiple Output CapabilityNo No No No No
    Output PowerUndefined Watt Undefined Watt Undefined Watt
    Output Voltage1.8, Undefined, 2.5, 1.875, 1.2, 3.3, 1.375, 1.25, 2.8, 1.6, 1.5 Volt 3.3 Volt Undefined Volt 1.8, Undefined, 1.875, 3.3, 1.6, 1.5 Volt 1.8, Undefined, 1.875, 1.2, 2.8, 1.5 Volt
    Output Range1.1V to 3.3V 1.24V to 13V 0.8V to 18V 0.7V to 3.3V Undefined
    Switching Frequency2000 kHz 300 kHz 1600, 550 kHz 1000 kHz 2000 kHz
    Feedback VoltageUndefined Volt Undefined Volt Undefined Volt Undefined Volt Undefined Volt
    On/Off PinYes Yes Yes Yes Yes
    Regulator FamilyUndefined Undefined Undefined Undefined Undefined
    AEC Q-100 Automotive GradeUndefined Undefined 1 Undefined Undefined
    PowerWiseYes Yes Yes
    Synchronous RectificationYes Yes No Yes Yes

    Datasheets
    TitleSizeDateOther
    Language
    LM3671 LM3671Q 2MHz, 600mA Step-Down DC-DC Converter7448
    Kbytes    		2-Dec-11日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-1395: Application Note 1395 LM3671 Evaluation Board3838
    Kbytes    		10-Oct-08 中文


    Other Technical Documents
    TitleTypeDate
    Understanding Portable Applications Requirements to Improve System PerformancePower Designer 2007-03-22
    Power Management Design for Applications ProcessorsPower Designer 2007-03-22
    Optimize RF PA Efficiency to Increase Your Handset's Talk-timeExternal Article 2006-06-26

    Part Number(s)
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    LM3671LC-1.2/NOPB


    RoHS Status

    LLP COL    		Full production
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    LM3671MF-1.2/NOPB

    LM3671MF-1.2

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    MOUSERWorldwide1160
    NEWARKAmericas686
    RS COMPONENTSWorldwide880
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    LM3671MF-1.25/NOPB

    LM3671MF-1.25

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    LM3671MF-1.375

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    LM3671MF-1.5

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    LM3671MF-1.6/NOPB

    LM3671MF-1.6

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    RS COMPONENTSWorldwide34
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    LM3671MF-1.875

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    LM3671MF-3.3

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    RS COMPONENTSWorldwide751
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    LM3671MFX-1.2/NOPB

    LM3671MFX-1.2

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    LM3671MFX-1.5

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    LM3671MFX-1.6

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    LM3671MFX-1.875

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    LM3671MFX-2.5

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    LM3671MFX-2.8

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    LM3671MFX-3.3

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    LM3671MFX-ADJ/NOPB

    LM3671MFX-ADJ

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    LM3671QMF-1.2/NOPB


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    LM3671TL-1.2/NOPB


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    LM3671TL-1.5/NOPB


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    LM3671TL-1.8/NOPB


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    LM3671TL-1.875/NOPB


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    LM3671TL-2.5/NOPB


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    LM3671TL-2.8/NOPB


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    LM3671TL-3.3/NOPB


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    LM3671TL-ADJ/NOPB


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    LM3671TLX-1.2/NOPB


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    LM3671TLX-1.5/NOPB


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    LM3671TLX-1.8/NOPB


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    LM3671TLX-1.875/NOPB


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    LM3671TLX-2.5/NOPB


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    LM3671TLX-2.8/NOPB


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    LM3671TLX-3.3/NOPB


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    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 LM3671.

    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 LM3671 is located at RoHS Status.

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM3671LC-1.6EV
    		LM3671LC-1.6 Evaluation BoardFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide7
    MOUSERWorldwide2
    		$53.00 each1

    Description:

    The LM3671 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion battery and input voltage rails from 2.7V to 5.5V. It provides up to 600mA load current, over the entire input voltage range. There are several different fixed voltage output options available as well as an adjustable output voltage version range from 1.1V to 3.3V.

    The LM3677 evaluation board is a working demonstration of a step down DC-DC converter. This application note contains information about the evaluation board. For further information on buck converter topology, device electrical characteristics, and component selection, please refer to the datasheet.

    Features:

    • 16 µ A typical quiescent current
    • 600mA maximum load capability
    • 2 MHz PWM fixed switching frequency (typ)
    • Automatic PFM/WM mode switching
    • Internal synchronous rectification for high efficiency
    • Internal soft start
    • 0.01 µA typical shutdown current
    • Operates from a single Li-Ion cell battery
    • Only three tiny surface-mount external components required (one inductor, two ceramic capacitors)
    • Current overload and Thermal shutdown protection
    • Available in fixed output voltages and adjustable version
    • SOT23-5, 5-bump micro SMD and 6-pin LLP packages

    Applications:

    • Mobile phones
    • PDAs
    • MP3 players
    • W-LAN
    • Portable Instruments
    • Digital still cameras
    • Portable Hard disk drives

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM3671LC-1.8EV
    		evaluation boardFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$53.00 each1

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM3671MF-1.5EV
    		2MHz, 600mA Step-Down DC-DC Converter in SOT23-5 and 5-Bump Micro SMDFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$53.00 each1

    Description:

    The LM3671 evaluation board is a working demonstration of a step down DC-DC converter. The application note contains information about the evaluation board. The LM3671 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Li-Ion cell or 3 cell NiMH/NiCd batteries. It provides up to 600 mA load current, over an input voltage range from 2.8V to 5.5V. There are several different fixed voltage output options available as well as an adjustable output voltage version. This device offers superior features and performance for mobile phones and similar portable applications with complex power management systems.

    Features:

    • 16 microA typical quiescent current
    • 600 mA maximum load capability
    • 2 MHz PWM fixed switching frequency (typ)
    • Automatic PFM/PWM mode switching
    • Available in fixed output voltages as well as an adjustable version
    • SOT23-5 package
    • Internal synchronous rectification for high efficiency
    • Internal soft start
    • 0.01 microA typical shutdown current
    • Operates from a single Li-Ion cell or 3 cell NiMH/NiCd batteries
    • Only three tiny surface-mount external components required (one inductor, two ceramic capaitors)
    • Current overload protection

    Applications:

    • Mobile phones
    • PDAs
    • MP3 players
    • W-LAN
    • Portable Instruments
    • Digital still cameras
    • Portable Hard disk Drives

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM3671MF-1.8EV
    		2MHz, 600mA Step-Down DC-DC Converter in SOT23-5 and 5-Bump Micro SMDFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide1
    		$53.00 each1

    Description:

    The LM3671 evaluation board is a working demonstration of a step down DC-DC converter. The application note contains information about the evaluation board. The LM3671 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Li-Ion cell or 3 cell NiMH/NiCd batteries. It provides up to 600 mA load current, over an input voltage range from 2.8V to 5.5V. There are several different fixed voltage output options available as well as an adjustable output voltage version. This device offers superior features and performance for mobile phones and similar portable applications with complex power management systems.

    Features:

    • 16 microA typical quiescent current
    • 600 mA maximum load capability
    • 2 MHz PWM fixed switching frequency (typ)
    • Automatic PFM/PWM mode switching
    • Available in fixed output voltages as well as an adjustable version
    • SOT23-5 package
    • Internal synchronous rectification for high efficiency
    • Internal soft start
    • 0.01 microA typical shutdown current
    • Operates from a single Li-Ion cell or 3 cell NiMH/NiCd batteries
    • Only three tiny surface-mount external components required (one inductor, two ceramic capaitors)
    • Current overload protection

    Applications:

    • Mobile phones
    • PDAs
    • MP3 players
    • W-LAN
    • Portable Instruments
    • Digital still cameras
    • Portable Hard disk Drives

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM3671TL-1.5EV
    		LM3671TL-1.5 Evaluation BoardFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$53.00 each1

    Description:

    The LM3671 evaluation board is a working demonstration of a step down DC-DC converter. The application note contains information about the evaluation board. The LM3671 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Li-Ion cell or 3 cell NiMH/NiCd batteries. It provides up to 600 mA load current, over an input voltage range from 2.8V to 5.5V. There are several different fixed voltage output options available as well as an adjustable output voltage version. This device offers superior features and performance for mobile phones and similar portable applications with complex power management systems.

    Features:

    • 16 microA typical quiescent current
    • 600 mA maximum load capability
    • 2 MHz PWM fixed switching frequency (typ)
    • Automatic PFM/PWM mode switching
    • Available in fixed output voltages as well as an adjustable version
    • SOT23-5 package
    • Internal synchronous rectification for high efficiency
    • Internal soft start
    • 0.01 microA typical shutdown current
    • Operates from a single Li-Ion cell or 3 cell NiMH/NiCd batteries
    • Only three tiny surface-mount external components required (one inductor, two ceramic capaitors)
    • Current overload protection

    Applications:

    • Mobile phones
    • PDAs
    • MP3 players
    • W-LAN
    • Portable Instruments
    • Digital still cameras
    • Portable Hard disk Drives

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM3671TL-1.8EV
    		2MHz, 600mA Step-Down DC-DC Converter in SOT23-5 and 5-Bump Micro SMDFull production


     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    		$53.00 each1

    Description:

    The LM3671 evaluation board is a working demonstration of a step down DC-DC converter. The application note contains information about the evaluation board. The LM3671 step-down DC-DC converter is optimized for powering ultra-low voltage circuits from a single Li-Ion cell or 3 cell NiMH/NiCd batteries. It provides up to 600 mA load current, over an input voltage range from 2.8V to 5.5V. There are several different fixed voltage output options available as well as an adjustable output voltage version. This device offers superior features and performance for mobile phones and similar portable applications with complex power management systems.

    Features:

    • 16 microA typical quiescent current
    • 600 mA maximum load capability
    • 2 MHz PWM fixed switching frequency (typ)
    • Automatic PFM/PWM mode switching
    • Available in fixed output voltages as well as an adjustable version
    • SOT23-5 package
    • Internal synchronous rectification for high efficiency
    • Internal soft start
    • 0.01 microA typical shutdown current
    • Operates from a single Li-Ion cell or 3 cell NiMH/NiCd batteries
    • Only three tiny surface-mount external components required (one inductor, two ceramic capaitors)
    • Current overload protection

    Applications:

    • Mobile phones
    • PDAs
    • MP3 players
    • W-LAN
    • Portable Instruments
    • Digital still cameras
    • Portable Hard disk Drives



    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
    LM3671LC-1.2/NOPB

    		6.616
    		LLP COL61260DetailDownloadN/A
    		XTT
    S39
    LM3671LC-1.3/NOPB

    		6.616
    		LLP COL61260DetailDownloadN/A
    		XTT
    S40
    LM3671LC-1.6/NOPB

    		6.616
    		LLP COL61260DetailDownloadN/A
    		XTT
    S41
    LM3671LC-1.8/NOPB

    		6.616
    		LLP COL61260DetailDownloadN/A
    		XTT
    S42
    LM3671LCX-1.2/NOPB

    		6.616
    		LLP COL61260DetailDownloadN/A
    		XTT
    S39
    LM3671LCX-1.3/NOPB

    		6.616
    		LLP COL61260DetailDownloadN/A
    		XTT
    S40
    LM3671LCX-1.6/NOPB

    		6.616
    		LLP COL61260DetailDownloadN/A
    		XTT
    S41
    LM3671LCX-1.8/NOPB

    		6.616
    		LLP COL61260DetailDownloadN/A
    		XTT
    S42
    LM3671MF-1.2/NOPB

    LM3671MF-1.2
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SBPB
    XTT
    LM3671MF-1.25/NOPB

    LM3671MF-1.25
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SDRB
    XTT
    LM3671MF-1.375/NOPB

    LM3671MF-1.375
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SEDB
    XTT
    LM3671MF-1.5/NOPB

    LM3671MF-1.5
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SBRB
    XTT
    LM3671MF-1.6/NOPB

    LM3671MF-1.6
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SDUB
    XTT
    LM3671MF-1.8/NOPB

    LM3671MF-1.8
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SBSB
    XTT
    LM3671MF-1.875/NOPB

    LM3671MF-1.875
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SDVB
    XTT
    LM3671MF-2.5/NOPB

    LM3671MF-2.5
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SJRB
    XTT
    LM3671MF-2.8/NOPB

    LM3671MF-2.8
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SJSB
    XTT
    LM3671MF-3.3/NOPB

    LM3671MF-3.3
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SJEB
    XTT
    LM3671MF-ADJ/NOPB

    LM3671MF-ADJ
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SBTB
    XTT
    LM3671MFX-1.2/NOPB

    LM3671MFX-1.2
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SBPB
    XTT
    LM3671MFX-1.25/NOPB

    LM3671MFX-1.25
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SDRB
    XTT
    LM3671MFX-1.375/NOPB

    LM3671MFX-1.375
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SEDB
    XTT
    LM3671MFX-1.5/NOPB

    LM3671MFX-1.5
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SBRB
    XTT
    LM3671MFX-1.6/NOPB

    LM3671MFX-1.6
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SDUB
    XTT
    LM3671MFX-1.8/NOPB

    LM3671MFX-1.8
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SBSB
    XTT
    LM3671MFX-1.875/NOPB

    LM3671MFX-1.875
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SDVB
    XTT
    LM3671MFX-2.5/NOPB

    LM3671MFX-2.5
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SJRB
    XTT
    LM3671MFX-2.8/NOPB

    LM3671MFX-2.8
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SJSB
    XTT
    LM3671MFX-3.3/NOPB

    LM3671MFX-3.3
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SJEB
    XTT
    LM3671MFX-ADJ/NOPB

    LM3671MFX-ADJ
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		SBTB
    XTT
    LM3671QMF-1.2/NOPB

    		SOT-2351260DetailDownloadN/A
    		SH4B
    XTT
    LM3671QMFX-1.2/NOPB

    		SOT-2351260DetailDownloadN/A
    		SH4B
    XTT
    LM3671TL-1.2/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I C
    LM3671TL-1.5/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I D
    LM3671TL-1.8/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I B
    LM3671TL-1.875/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I S
    LM3671TL-2.5/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I L
    LM3671TL-2.8/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I K
    LM3671TL-3.3/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I J
    LM3671TL-ADJ/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I E
    LM3671TLX-1.2/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I C
    LM3671TLX-1.5/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I D
    LM3671TLX-1.8/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I B
    LM3671TLX-1.875/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I S
    LM3671TLX-2.5/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I L
    LM3671TLX-2.8/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I K
    LM3671TLX-3.3/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I J
    LM3671TLX-ADJ/NOPB

    		1.708
    		MICRO SMD51260DetailDownloadN/A
    		XV
    I E

    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 LM3671.

    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 LM3671 is located at RoHS Status.

    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM3671LC-1.2CMOS70213010015840003449464325
    LM3671LC-1.3CMOS70213010015840003449464325
    LM3671LC-1.6CMOS70213010015840003449464325
    LM3671LC-1.8CMOS70213010015840003449464325
    LM3671LCX-1.2CMOS70213010015840003449464325
    LM3671LCX-1.3CMOS70213010015840003449464325
    LM3671LCX-1.6CMOS70213010015840003449464325
    LM3671LCX-1.8CMOS70213010015840003449464325
    LM3671MF-1.2CMOS70213010015840003449464325
    LM3671MF-1.25CMOS70213010015840003449464325
    LM3671MF-1.375CMOS70213010015840003449464325
    LM3671MF-1.5CMOS70213010015840003449464325
    LM3671MF-1.6CMOS70213010015840003449464325
    LM3671MF-1.8CMOS70213010015840003449464325
    LM3671MF-1.875CMOS70213010015840003449464325
    LM3671MF-2.5CMOS70213010015840003449464325
    LM3671MF-2.8CMOS70213010015840003449464325
    LM3671MF-3.3CMOS70213010015840003449464325
    LM3671MF-ADJCMOS70213010015840003449464325
    LM3671MFX-1.2CMOS70213010015840003449464325
    LM3671MFX-1.25CMOS70213010015840003449464325
    LM3671MFX-1.375CMOS70213010015840003449464325
    LM3671MFX-1.5CMOS70213010015840003449464325
    LM3671MFX-1.6CMOS70213010015840003449464325
    LM3671MFX-1.8CMOS70213010015840003449464325
    LM3671MFX-1.875CMOS70213010015840003449464325
    LM3671MFX-2.5CMOS70213010015840003449464325
    LM3671MFX-2.8CMOS70213010015840003449464325
    LM3671MFX-3.3CMOS70213010015840003449464325
    LM3671MFX-ADJCMOS70213010015840003449464325
    LM3671QMF-1.2CMOS70213010015840003449464325
    LM3671QMFX-1.2CMOS70213010015840003449464325
    LM3671TL-1.2CMOS70213010015840003449464325
    LM3671TL-1.5CMOS70213010015840003449464325
    LM3671TL-1.8CMOS70213010015840003449464325
    LM3671TL-1.875CMOS70213010015840003449464325
    LM3671TL-2.5CMOS70213010015840003449464325
    LM3671TL-2.8CMOS70213010015840003449464325
    LM3671TL-3.3CMOS70213010015840003449464325
    LM3671TL-ADJCMOS70213010015840003449464325
    LM3671TLX-1.2CMOS70213010015840003449464325
    LM3671TLX-1.5CMOS70213010015840003449464325
    LM3671TLX-1.8CMOS70213010015840003449464325
    LM3671TLX-1.875CMOS70213010015840003449464325
    LM3671TLX-2.5CMOS70213010015840003449464325
    LM3671TLX-2.8CMOS70213010015840003449464325
    LM3671TLX-3.3CMOS70213010015840003449464325
    LM3671TLX-ADJCMOS70213010015840003449464325

    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 LM3671.

    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 LM3671 is located at RoHS Status.

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