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TPS40002 Status: ACTIVE

Low Input (2.25V-5.5V) 600 kHz Frequency, Synchronous Buck Controller, Source Only

      
         
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Datasheet

Download - PDF Icon
  • TPS40000 Synchronous Buck Controller (Rev. D) (tps40002.pdf, 790 KB)
    14 Nov 2005 Download

 TPS40000 TPS40002TPS40007 TPS40009 
TopologyBuck  Buck  Buck  Buck  
Vin(Min)(V)2.25  2.25  2.25  2.25  
Vin(Max)(V)5.5  5.5  5.5  5.5  
Vout(Min)(V)0.7  0.7  0.7  0.7  
Vout(Max)(V)4  4  4  4  
Regulated Outputs(#)1  1  1  1  
Iout(Max)(A)15  15  15  15  
Switching Frequency(Max)(kHz)300  600  300  600  
Iq(Typ)(mA)1.5  1.5  1.5  1.5  
Pin/Package10MSOP-PowerPAD  10MSOP-PowerPAD  10MSOP-PowerPAD  10MSOP-PowerPAD  
RatingCatalog  Catalog  Catalog  Catalog  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS40009: Low Input (2.25V-5.5V) 600 kHz Frequency, Synchronous Buck Controller, Source/ Sink, Prebias Operati
  • TPS5410: 5.5V to 36V Input, 1-A Step Down Converter
  • TPS61041: 28-V, 250-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications
  • TPS5431: 5.5-V to 23-V, 3-A Step-Down Swift(TM) Converter

Product Information

Features

  • Operating Input Voltage 2.25 V to 5.5 V
  • Output Voltage as Low as 0.7 V
  • 1% Internal 0.7 V Reference
  • Predictive Gate Drive™ N-Channel MOSFET Drivers for Higher Efficiency
  • Externally Adjustable Soft-Start and Overcurrent Limit
  • Source-Only Current or Source/Sink Current
  • Versions for Starting into VOUT Pre-Bias
  • 10-Lead MSOP PowerPad™ Package for Higher Performance
  • Thermal Shutdown
  • Internal Boostrap Diode
  • Fixed-Frequency, Voltage-Mode Control
    • TPS40000/1/4 300-kHz
    • TPS40002/3/5 600-kHz
  • APPLICATIONS
    • Networking Equipment
    • Telecom Equipment
    • Base Stations
    • Servers
    • DSP Power
    • Power Modules

PowerPAD™ and Predictive Gate Drive™ are trademarks of Texas Instruments Incorporated.

Description

The TPS4000x are controllers for low-voltage, non-isolated synchronous buck regulators. These controllers drive an N-channel MOSFET for the primary buck switch, and an N-channel MOSFET for the synchronous rectifier switch, thereby achieving very high-efficiency power conversion. In addition, the device controls the delays from main switch off to rectifier turn-on and from rectifier turn-off to main switch turn-on in such a way as to minimize diode losses (both conduction and recovery) in the synchronous rectifier with TI’s proprietary Predictive Gate Drive™ technology. The reduction in these losses is significant and increases efficiency. For a given converter power level, smaller FETs can be used, or heat sinking can be reduced or even eliminated.

The current-limit threshold is adjustable with a single resistor connected to the device. The TPS4000x controllers implement a closed-loop soft start function. Startup ramp time is set by a single external capacitor connected to the SS/SD pin. The SS/SD pin is also used for shutdown.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
TPS40002DGQACTIVE-40 to 851.35 | 100uMSOP-PowerPAD (DGQ) | 10 View 80 | TUBE Download CAD Format for this Symbol
TPS40002DGQG4ACTIVE-40 to 851.35 | 100uMSOP-PowerPAD (DGQ) | 10 View 80 | TUBE Download CAD Format for this Symbol
TPS40002DGQRACTIVE-40 to 851.50 | 100uMSOP-PowerPAD (DGQ) | 10 View 2500 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS40002DGQRG4ACTIVE-40 to 851.50 | 100uMSOP-PowerPAD (DGQ) | 10 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
TPS40002DGQAs of 8:03 AM GMT, 05 Oct 2008As of 8:03 AM GMT, 05 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 6720* 142 | 7 Oct 1 Weeks AmericasDigiKey 106
  Rochester Electronics >1k
  AsiaWPI 107
TPS40002DGQG4As of 8:03 AM GMT, 05 Oct 2008As of 8:03 AM GMT, 05 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 6720* 142 | 7 Oct 1 Weeks AmericasAvnet 4
  Rochester Electronics 460
  EuropeFarnell 377
TPS40002DGQRAs of 8:03 AM GMT, 05 Oct 2008As of 8:03 AM GMT, 05 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1336* >10k | 2 Dec 6 Weeks None Reported
View Distributors		   
TPS40002DGQRG4As of 8:03 AM GMT, 05 Oct 2008As of 8:03 AM GMT, 05 Oct 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1336* >10k | 2 Dec 6 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
TPS40002DGQ RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS40002DGQG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS40002DGQR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS40002DGQRG4 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

  • TPS40000 Synchronous Buck Controller (Rev. D) (tps40002.pdf, 790 KB)
    14 Nov 2005 Download

Application Notes

  • PowerPAD Thermally Enhanced Package Application Report (Rev. C) (slma002c.htm, 8 KB)
    19 Jun 2008 Abstract
  • PowerPAD Thermally Enhanced Package Application Report (Rev. B) (slma002b.htm, 8 KB)
    10 Apr 2008 Abstract
  • Predictive Gate Drive (tm) FAQ (slua285.htm, 8 KB)
    03 Feb 2003 Abstract
  • Predictive Gate Drive Boosts Converter Efficiency (slua281.htm, 9 KB)
    18 Dec 2002 Abstract
  • UCC27221/2 Predictive Gate Drive FAQ (slua280.htm, 8 KB)
    18 Dec 2002 Abstract
  • TI Power Solutions Power Up Altera FPGAs (slua278.htm, 8 KB)
    18 Oct 2002 Abstract

View Application Notes for DC/DC Controllers (External Switch)

User Guides

  • Ultra-High Efficiency Buck Converter Using TPS40000/1 Controller Keeps Costs Low (Rev. B) (sluu121b.pdf, 145 KB)
    08 Jul 2005 Download
  • TPS40002/3 Controllers Enable BUCK Converter Operating From 2.5-V Supply (Rev. B) (sluu122b.pdf, 155 KB)
    08 Jul 2005 Download
  • TPS40000/1 Controller Enables High Power Sync Step-Down Converter for Low-Logic (Rev. B) (sluu120b.pdf, 149 KB)
    08 Jul 2005 Download
  • TPS40002/3 Controllers Enable BUCK Converter Operating From 2.5-V Supply (Rev. A) (sluu122a.pdf, 157 KB)
    27 Jan 2003 Download
  • Ultra-High Efficiency Buck Converter Using TPS40000/1 Controller Keeps Power Sys (Rev. A) (sluu121a.pdf, 146 KB)
    27 Jan 2003 Download
  • TPS40000/1 Controller Enables High Power Synchronous Step-Down Converter for Low (Rev. A) (sluu120a.pdf, 154 KB)
    27 Jan 2003 Download
  • TPS40003EVM (Rev. A) (sluu130a.pdf, 339 KB)
    27 Jan 2003 Download
  • TPS40002/3 Controllers Enable Miniature Synchronous Step-Down Converter for Low (Rev. A) (sluu123a.pdf, 156 KB)
    27 Jan 2003 Download

View User Guides for DC/DC Controllers (External Switch)

More Literature

  • PR072 Bill of Materials (slvr292.pdf, 19 KB)
    27 Jun 2005 Download
  • PR072 Schematic  (slvr291.pdf, 45 KB)
    27 Jun 2005 Download
  • PR070 Bill of Materials (slvr288.pdf, 23 KB)
    27 Jun 2005 Download
  • PR070 Schematic (slvr287.pdf, 41 KB)
    27 Jun 2005 Download
  • Seminar 1400 Topic 7 The Implication of Synchronous Rectifiers to the Design of (slup175.pdf, 432 KB)
    22 Apr 2002 Download
  • Seminar 1400 Topic 2 Design and Application Guide for High Speed MOSFET Gate Dri (slup169.pdf, 345 KB)
    22 Apr 2002 Download

Reference Designs

Description Part # Company
Synchronous Buck Controller with Vin 3.0-3.6V PR070 Texas Instruments
Synchronous Buck Controller with Vin 3.0-5 V PR071 Texas Instruments
Synchronous Buck with Vin 2.25-3.3 V PR072 Texas Instruments
Synchronous Buck with Vin 3.0-5 V PR073 Texas Instruments

Tools & Software

NamePart #CompanySoftware/Tool Type
TPS40K -DC/DC Controller Products Designer SoftwareTPS40K-SW Texas Instruments Application Software 

 Alternative Products - Are similar to TPS40002
Customers Who Evaluated This Product Also Evaluated...
Part #Name Comments
TPS40009Low Input (2.25V-5.5V) 600 kHz Frequency, Synchronous Buck Controller, Source/ Sink, Prebias OperatiTI customers also evaluated this product.
 Complementary Products - Can be used with TPS40002
Customers Who Evaluated This Product Also Evaluated...
Part #NameProduct FamilyComments
TPS54105.5V to 36V Input, 1-A Step Down ConverterDC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORSTI customers also evaluated this product.
TPS6104128-V, 250-mA Switch Boost Converter in SOT-23 for LCD and White LED ApplicationsLIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERSTI customers also evaluated this product.
TPS54315.5-V to 23-V, 3-A Step-Down Swift(TM) ConverterDC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORSTI customers also evaluated this product.

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