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TPS40003 Status: NRND

Low Input Voltage Mode Synchronous Buck Controller


      
         
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Alert Icon   NRND: This product is not recommended for new designs. However, the device, tool, or software continues to be in production to support existing customers. TI does not recommend using this part in a new design. TI encourages designers to consider alternative products for new designs.

Replaced By:

  • TPS40009 The device is an EXACT EQUIVALENT in functionality and parametrics to the compared device. 

Datasheet

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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

View All Features in Datasheet

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.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Replaced ByPrice | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
TPS40003DGQNRND-40 to 85TPS40009DGQ1.10 | 1kuMSOP-PowerPAD (DGQ) | 10 View 80 | TUBE Download CAD Format for this SymbolReplaced by TPS40009DGQ
TPS40003DGQG4NRND-40 to 85 1.10 | 1kuMSOP-PowerPAD (DGQ) | 10 View 80 | TUBE Download CAD Format for this SymbolNot Available
TPS40003DGQRNRND-40 to 85TPS40009DGQR1.10 | 1kuMSOP-PowerPAD (DGQ) | 10 View 2500 | LARGE T&R Download CAD Format for this SymbolReplaced by TPS40009DGQR
TPS40003DGQRG4NRND-40 to 85 1.10 | 1kuMSOP-PowerPAD (DGQ) | 10 View 2500 | LARGE T&R Download CAD Format for this SymbolNot Available

* 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

Reported Distributor Inventory as of 10:13 AM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 14 WeeksTPS40003DGQ
AmericasArrow 50
Avnet 246
Rochester Electronics >1k
AsiaWPI 800
EuropeAvnet-SILICA 160
WorldwideDigiKey 319
TI Lead Time*: 14 WeeksTPS40003DGQG4
EuropeEBV Elektronik 80
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTPS40003DGQR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTPS40003DGQRG4
WorldwideDigiKey  Available
View all Distributors  

** 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
TPS40003DGQ  Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS40003DGQG4  Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TPS40003DGQR  Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS40003DGQRG4  Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* 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

Most useful technical documents for TPS40003 Help

Datasheet

Application Notes

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

User Guides

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

More Literature

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 Reference Design PMP482 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

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