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TPS5431 Status:ACTIVE

5.5-V to 23-V, 3-A Step-Down Swift(TM) Converter

      
         
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Datasheet

Download - PDF Icon
  • 3-A Wide Input Range Step-Down Swift(TM) Converter (Rev. C) (tps5431.pdf, 805 KB)
    22 Nov 2006 Download
  • SWIFT Converter Product Portfolio (Rev. B) (slvt153b.pdf, 77 KB)
    23 Apr 2008 Download

 TPS5430 TPS5431
Iout(Max)(A)3  3  
Vin(Min)(V)5.5  5.5  
Vin(Max)(V)36  23  
Vout(Min)(V)1.23  1.23  
Vout(Max)(V)31  20  
Iq(Typ)(mA)3  3  
Switching Frequency(Max)(kHz)500  500  
Switch Current Limit(Typ)(A)4  4  
TopologyBuck  Buck  
Operating Temp Range(Celsius)-40 to 125  -40 to 125  
Pin/Package8SO PowerPAD  8SO PowerPAD  
RatingCatalog  Catalog  
Duty Cycle(Max)(%)87  87  
 SamplesSamples
 InventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS62200: Adjustable, 300-mA, 95% Efficient Step-Down Converter in SOT-23
  • TPS5430: 5.5V to 36V Input, 3-A Step Down Converter
  • TPS54350: 4.5 to 20V Input, 3A Step Down Converter with Adjustable Output Voltage
  • TPS40200: Wide Input Nonsynchronous Buck DC/DC Controller
  • TPS61200: 0.3V Input Voltage Boost Converter with 1.5A Switches and 'Down Mode' in a 3x3 QFN
  • TPS61042: 30-V, 500-mA Switch Boost Converter in QFN-8 for White LED Applications

More Related Products

Product Information

Features

  • Wide Input Voltage Range:
    • TPS5430: 5.5 V to 36 V
    • TPS5431: 5.5 V to 23 V
  • Up to 3-A Continuous (4-A Peak) Output Current
  • High Efficiency up to 95% Enabled by 110-m Integrated MOSFET Switch
  • Wide Output Voltage Range: Adjustable Down to 1.22 V with 1.5% Initial Accuracy
  • Internal Compensation Minimizes External Parts Count
  • Fixed 500 kHz Switching Frequency for Small Filter Size
  • Improved Line Regulation and Transient Response by Input Voltage Feed Forward
  • System Protected by Overcurrent Limiting, Overvoltage Protection and Thermal Shutdown
  • -40°C to 125°C Operating Junction Temperature Range
  • Available in Small Thermally Enhanced 8-Pin SOIC PowerPAD Package
  • For SWIFT™ Documentation, Application Notes and Design Software, See the TI Website at www.ti.com/swift
  • APPLICATIONS
    • Consumer: Set-top Box, DVD, LCD Displays
    • Industrial and Car Audio Power Supplies
    • Battery Chargers, High Power LED Supply
    • 12-V/24-V Distributed Power Systems

SWIFT, PowerPAD are trademarks of Texas Instruments.

Description

As a member of the SWIFT™ family of DC/DC regulators, the TPS5430/TPS5431 is a high-output-current PWM converter that integrates a low resistance high side N-channel MOSFET. Included on the substrate with the listed features are a high performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5430/TPS5431 feedback loop is internally compensated. The TPS5431 is intended to operate from power rails up to 23 V. The TPS5430 regulates a wide variety of power sources including 24-V bus.

The TPS5430/TPS5431 device is available in a thermally enhanced, easy to use 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and the SWIFT™ Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

    

Pricing / Packaging / CAD Design Tools / Samples

Price ($US)PackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price ($US) | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
TPS5431DDAACTIVE-40 to 1252.20 | 100uSO PowerPAD (DDA) | 8 View 100 | TUBE Download CAD Format for this Symbol
TPS5431DDAG4ACTIVE-40 to 1252.20 | 100uSO PowerPAD (DDA) | 8 View 100 | TUBE Download CAD Format for this Symbol
TPS5431DDARACTIVE-40 to 1252.20 | 100uSO PowerPAD (DDA) | 8 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS5431DDARG4ACTIVE-40 to 1252.20 | 100uSO PowerPAD (DDA) | 8 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

  TI Inventory Status Reported Distributor Inventory
TPS5431DDAAs of 7:50 AM GMT, 07 Sep 2008As of 7:50 AM GMT, 07 Sep 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 200 | 19 Nov 12 Weeks AmericasAvnet >1k
 100 | 24 Nov DigiKey 327
 >10k | 25 Nov Mouser Electronics >1k
  Newark 170
  EuropeArrow Southern Europe 400
  Avnet-SILICA 100
  Spoerle 100
TPS5431DDAG4As of 7:50 AM GMT, 07 Sep 2008As of 7:50 AM GMT, 07 Sep 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 200 | 19 Nov 12 Weeks AmericasAvnet 201
 100 | 24 Nov     
 >10k | 25 Nov     
TPS5431DDARAs of 7:50 AM GMT, 07 Sep 2008As of 7:50 AM GMT, 07 Sep 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 17 Oct 8 Weeks EuropeArrow Southern Europe >1k
  Avnet-SILICA >1k
TPS5431DDARG4As of 7:50 AM GMT, 07 Sep 2008As of 7:50 AM GMT, 07 Sep 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 17 Oct 8 Weeks None Reported
View Distributors		   
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TPS5431DDA RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS5431DDAG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS5431DDAR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS5431DDARG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Datasheets

  • 3-A Wide Input Range Step-Down Swift(TM) Converter (Rev. C) (tps5431.pdf, 805 KB)
    22 Nov 2006 Download
  • SWIFT Converter Product Portfolio (Rev. B) (slvt153b.pdf, 77 KB)
    23 Apr 2008 Download

Application Notes

  • Using TPS5410/20/30/31/50 w/Aluminum/Ceramic Output Capacitors (Rev. C) (slva237c.htm, 8 KB)
    21 Mar 2007 Abstract
  • Selecting the correct IC for power-supply applications (slyt259.pdf, 184 KB)
    14 Dec 2006 Download

View Application Notes for Step-Down Regulators

User Guides

  • TPS5430/31EVM-173 3-A Swift(TM) Regulator EVM (slvu157.htm, 8 KB)
    06 Mar 2006 Abstract

More Literature

View More Literature for Step-Down Regulators

Tools & Software


*Required

Design Now with SwitcherPro™

Enter your design parameters below to design now with SwitcherPro™

 Input
      Min       Max
* Vin Min:   5.5 V     23 V
* Vin Max:   5.5 V     23 V
 Output
      Min       Max
* Vout:   1.23 V     20 V
* Iout Max:   0.0 A     3 A
 

Search for more Power Management devices with Power Quick Search on power.ti.com
To learn more about SwitcherPro™ visit www.ti.com/switcherpro

NamePart # Company Tool / Software Type
9V to 21Vin, 3A Step Down ConverterTPS5431EVM-173Texas InstrumentsDevelopment Boards/EVMs
SwitcherPro(TM) Online Design Creator and Management SoftwareSWITCHERPRO Texas Instruments Application Software 
  • Gerber File for TPS54314EVM(slvc044.zip, 107 KB )
               30 Apr 2004 zip
  • Gerber File for TPS54310EVM(slvc043.zip, 112 KB )
               30 Apr 2004 zip

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