National Semiconductor | High-performance Analog

 

 LM2733   
0.6/1.6 MHz Boost Converters With 40V Internal FET Switch in SOT-23 		Click link to Download

Features

  • 40V DMOS FET switch
  • 1.6 MHz (“X”), 0.6 MHz (“Y”) switching frequency
  • Low RDS(ON) DMOS FET
  • Switch current up to 1A
  • Wide input voltage range (2.7V–14V)
  • Low shutdown current (<1 µA)
  • 5-Lead SOT-23 package
  • Uses tiny capacitors and inductors
  • Cycle-by-cycle current limiting
  • Internally compensated

    • Description

    The LM2733 switching regulators are current-mode boost converters operating fixed frequency of 1.6 MHz (“X” option) and 600 kHz (“Y” option).

    The use of SOT-23 package, made possible by the minimal power loss of the internal 1A switch, and use of small inductors and capacitors result in the industry's highest power density. The 40V internal switch makes these solutions perfect for boosting to voltages of 16V or greater.

    These parts have a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life.

    Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.

    Switch Frequency

    X Y
    1.6 MHz 0.6 MHz


    Applications

  • White LED Current Source
  • PDA’s and Palm-Top Computers
  • Digital Cameras
  • Portable Phones and Games
  • Local Boost Regulator

    • WEBENCH® LM2733X
        Min   Max   Range  
      Vin V    2.70 – 14.00V  
      Vout V    1.26 – 40.00V  
      Iout A    ≤ 1.00A  
      Ambient Temp °C    ≤ 100°C  
    Footprint BOM Cost Efficiency
     
     
     
     
    What are WEBENCH® tools?

    Also Recommended
    LM2731▲1.5A / 22V Internal Switch. SOT-23 Package
    LM2735▲2.1A/ 24V Internal Switch In SOT23, LLP, And EMSOP Packages



    Typical Application
    click for larger image


    		Block Diagram
    click for larger image



    Typical Performance
    click for larger image


    Parameters / ValuesLM2733 LM2731 LM2735
    Output RangeVin to 40V 1.23V to 22V Vin to 24
    Switch Current1 Amp 1.5 Amp 2.25 Amp
    Input Min Voltage2.7 Volt 2.7 Volt 2.7 Volt
    Input Max Voltage14 Volt 14 Volt 5.5 Volt
    Frequency Max600, 1600 kHz 600, 1600 kHz 1700, 550 kHz
    Output Min3 Volt 1.23 Volt 3 Volt
    Output Max40 Volt 22 Volt 24 Volt
    Efficiency (peak)Undefined % 90 % 90 %
    Sync PinNo No No
    Adj Switch FrequencyNo No No
    Frequency Min600, 1600 kHz 600, 1600 kHz 475, 1500 kHz
    On/Off PinYes Yes Yes
    PowerGood / Error FlagNo No No
    PWM ModeCurrent Current
    TopologyBoost Boost Boost, Sepic, FlyBack
    Step-UpYes Yes Yes
    InvertingNo No
    FlybackNo No Yes
    RegTypeSwitching Regulator Switching Regulator Switching Regulator
    Adjustable OutputYes Yes
    Output PowerUndefined Watt Undefined Watt
    Temperature Min-40 deg C -40 deg C
    Temperature Max125 deg C 125 deg C
    AutomotiveYes Yes Yes
    PowerWiseNo No
    Quiescent Current1.1, 2.1 mA 2, 1 mA 7, 3.4 mA

    Datasheets
    TitleSizeDateOther
    Language
    LM2733 0.6/1.6 MHz Boost Converters With 40V Internal FET Switch in SOT-23425
    Kbytes    		29-Apr-10日本語  


    Application Notes
    TitleSizeDateOther
    Language
    AN-1280: Application Note 1280 LM2731/LM2733 Evaluation Board2319
    Kbytes    		22-Nov-11 


    Other Technical Documents
    TitleTypeDate
    Your Walls Will Be Changing (Circuits for LCD Multimedia TV Panels)External Article 2007-09-12

    Part Number(s)
    (NSID)    		Top ViewAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM2733XMF/NOPB

    LM2733XMF

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide4425
    AVNET-EMWorldwide5800
    CEACAsia Pacific12000
    DIGI-KEYWorldwide11515
    FARNELLEurope and Asia1993
    KEIKONGAsia Pacific4000
    MOUSERWorldwide790
    NEWARKAmericas223
    RS COMPONENTSWorldwide36
    RSL MICROAsia Pacific15000
    TAYLORAmericas5110
    TECHMOSAAsia Pacific8000
    		$1.04 each at 1K+ pcsreel
    of
    1000
    LM2733XMFX/NOPB

    LM2733XMFX

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    ARROWWorldwide17912
    AVNET-EMWorldwide3000
    DIGI-KEYWorldwide0
    MOUSERWorldwide2965
    TAYLORAmericas17912
    		$1.04 each at 1K+ pcsreel
    of
    3000
    LM2733YMF/NOPB

    LM2733YMF

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

    Samples
    DistributorRegionQty
    ARROWWorldwide5761
    AVNET-EMWorldwide3000
    CEACAsia Pacific100000
    DIGI-KEYWorldwide2726
    FARNELLEurope and Asia1760
    MOUSERWorldwide424
    NEWARKAmericas259
    RS COMPONENTSWorldwide149
    TAYLORAmericas6861
    		$1.04 each at 1K+ pcsreel
    of
    1000
    LM2733YMFX/NOPB

    LM2733YMFX

    RoHS Status

    SOT-23    		Full production
    Lead Time: 6 weeks

     
    DistributorRegionQty
    AVNET-EMWorldwide6000
    DIGI-KEYWorldwide0
    		$1.04 each at 1K+ pcsreel
    of
    3000

    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 LM2733.

    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 LM2733 is located at RoHS Status.

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM2733XEVAL/NOPB

    		0.6/1.6 MHz Boost Converters With 40V Internal FET Switch in SOT-23Full production
    Lead Free (RoHS)

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide1
    		$30.00 each1

    Description:

    LM2733X 0.6MHz Boost Converter With 40V Internal FET Switch

    Features:

    • 40V DMOS FET switch
    • 1.6MHz switching frequency
    • Low RDS(ON) DMOS FET
    • Switch current up to 1A
    • Wide input voltage range (2.7V-14V)
    • Low shutdown current (<1µA)
    • 5-lead SOT-23 package
    • Uses tiny capacitors and inductors
    • Cycle-by cycle current limiting
    • Internally compensated

    Applications:

    • White LED current source
    • PDA's and palm-top computers
    • Digital cameras
    • Portable phones and games
    • Local boost regulator

    Contents:

    • A fully assembled LM2733X evaluation board
    • LM2733 evaluation board appnote
    • LM2733 datasheet

    Part Number(s)
    (NSID)    		DescriptionAvailabilityCurrent Reported StockBudgetary PricingPack
    Size
    LM2733YEVAL/NOPB

    		0.6/1.6 MHz Boost Converters With 40V Internal FET Switch in SOT-23Full production
    Lead Free (RoHS)

     
    DistributorRegionQty
    DIGI-KEYWorldwide0
    MOUSERWorldwide1
    		$30.00 each1

    Description:

    LM2733Y 0.6MHz Boost Converter With 40V Internal FET Switch

    Features:

    • 40V DMOS FET switch
    • 0.6MHz switching frequency
    • Low RDS(ON) DMOS FET
    • Switch current up to 1A
    • Wide input voltage range (2.7V-14V)
    • Low shutdown current (<1µA)
    • 5-lead SOT-23 package
    • Uses tiny capacitors and inductors
    • Cycle-by cycle current limiting
    • Internally compensated

    Applications:

    • White LED current source
    • PDA's and palm-top computers
    • Digital cameras
    • Portable phones and games
    • Local boost regulator

    Contents:

    • A fully assembled LM2733Y evaluation board
    • LM2733 evaluation board appnote
    • LM2733 datasheet



    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
    LM2733XMF/NOPB

    LM2733XMF
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		S52A
    XTT
    LM2733XMFX/NOPB

    LM2733XMFX
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		S52A
    XTT
    LM2733YMF/NOPB

    LM2733YMF
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		S52B
    XTT
    LM2733YMFX/NOPB

    LM2733YMFX
    		14.696
    14.801
    		SOT-2351
    1    		260
    260    		DetailDownloadN/A
    		S52B
    XTT

    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 LM2733.

    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 LM2733 is located at RoHS Status.

    CAD Symbols and Models
    Download LM2733 CAD Symbols
    		 Models
    N/A


    Reliability Metrics
    Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
    LM2733XMFABCD15004268000639400011814314958
    LM2733XMFXABCD15004268000639400011814314958
    LM2733YMFABCD15004268000639400011814314958
    LM2733YMFXABCD15004268000639400011814314958

    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 LM2733.

    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 LM2733 is located at RoHS Status.

    [Information as of 6-Feb-2012]
    Copyright © 2011 National Semiconductor Corporation