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clear gifTPS51020, Status:ACTIVE
Dual, DDR selectable, Synchronous buck controller
 
clear gif
Product Features and DescriptionFeaturesRequest Free SamplesSamplesTechnical Documents: app notes, user guides, models, and product bulletinsTechnical Documents
Quality: Product Contents, MTBF/FIT Rate and Moisture SensitivityQuality & Pb-Free DataPrice and Packaging InformationPricing/PackagingDownload Application NotesApplication Notes
related productsRelated ProductsInventory, Leadtime, and AvailabilityInventoryModels: BSDL, IBIS, or SPICESimulation Models
Tools & Software: EVMs, CCStudio, and developerTools & Software Download CAD Design ToolsSymbols/FootprintsAccess Reference DesignsReference Designs

 Datasheet
Download Datasheet
Dual, Voltage Mode, DDR Selectable, (Rev. B) (tps51020.pdf, 729 KB)
11 Dec 2003 Download

TPS51020TPS51120 TPS51124 TPS51125 TPS51220 TPS51221 TPS5124 
TopologyBuck  Buck  Buck  Buck  Buck  Buck  Buck  
Vin(Min)(V)4.5  4.5  3  5.5  4.5  4.5  4.5  
Vin(Max)(V)28  28  28  28  28  28  15  
Vout(Min)(V)0.9  1.05  0.76  2  1  1  0.9  
Vout(Max)(V)24  5.5  5.5  5.5  12  12  12  
Regulated Outputs(#)2  2  2  2  2  2  2  
Iout(Max)(A)20  20  15  20  20  20  20  
Switching Frequency(Max)(kHz)450  580  420  325  1000  1000  500  
Iq(Typ)(mA)1.4  0.75  0.35  0.55  1.3  1.3  1.1  
Pin/Package30TSSOP  32QFN  24VQFN  24VQFN  32QFN  32QFN  30TSSOP  
Vout2(Min)(V)0.9  1.05  0.76  2  1  1  0.9  
Vout2(Max)(V)24  5.5  5.5  5.5  12  12  12  
Iout2(A)20  20  20  20  20  20  20  
 SamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventory

Product Information
Back to TopFeatures
  • Wide Input Voltage Range: 4.5-V to 28-V
  • Selectable Dual and DDR Modes
  • Selectable Fixed Frequency Voltage Mode
  • Integrated Selectable Output Discharge
  • Advanced Power Good Logic Monitors both Channels
  • Selectable Autoskip Mode
  • Integrated Boot Strap Diodes
  • 180° Phase Shift Between Channels
  • Integrated 5-V, 60-mA Regulator
  • Input Feedforward Control
  • 1% Internal 0.85-V Reference
  • RDS(on) Overcurrent Detection (4200 ppm/°C)
  • Integrated OVP, UVP and Power Good Timers
  • 30-pin TSSOP Package
  • APPLICATIONS
    • Notebook Computers System Bus and I/O
    • DDR I or DDR II Termination
Back to TopDescription

The TPS51020 is a multi-function dual-synchronous step-down controller for notebook system power. The part is specifically designed for high performance, high efficiency applications where the loss associated with a current sense resistor is unacceptable. The TPS51020 utilizes feed forward voltage mode control to attain high efficiency without sacrificing line response. Efficiency at light load conditions can be maintained high as well by incorporating autoskip operation. A selectable, Suspend to RAM (STR) supported, DDR option provides a one chip solution for all switching applications from 5-V/3.3-V supply to a complete DDR termination solution.
Analog eLab(TM) Design Center

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Pricing/Packaging/CAD Design Tools/Samples
Back to TopPricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Budget Price
($US) | QTY		Industry Standard
(TI Pkg) | Pins		Top Side MarkingStandard Pack Quantity | Package CarrierSymbolsFootprintsSamples
TPS51020DBTACTIVE-40 to 853.00 | 100uTSSOP (DBT) | 30 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples
TPS51020DBTG4ACTIVE-40 to 853.00 | 100uTSSOP (DBT) | 30 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples
TPS51020DBTRACTIVE-40 to 853.00 | 100uTSSOP (DBT) | 30 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TPS51020DBTRG4ACTIVE-40 to 853.00 | 100uTSSOP (DBT) | 30 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase 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
Back to TopTI Inventory StatusReported Distributor Inventory
TPS51020DBTAs of 8:02 AM GMT, 18 May 2008As of 8:02 AM GMT, 18 May 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 1500 | 20 May 6 Weeks AmericasArrow 333 Buy Now
 1285 | 30 May Avnet >1k Buy Now
 1294 | 2 Jun DigiKey 142 Buy Now
 4900 | 5 Jun Mouser Electronics 75 Buy Now
 >10k | 25 Jun Rochester Electronics 13 Buy Now
  AsiaWPI 97 Buy Now
TPS51020DBTG4As of 8:02 AM GMT, 18 May 2008As of 8:02 AM GMT, 18 May 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 1500 | 20 May 6 Weeks AmericasMouser Electronics 210 Buy Now
 1285 | 30 May    
 1294 | 2 Jun    
 4900 | 5 Jun    
 >10k | 25 Jun    
TPS51020DBTRAs of 8:02 AM GMT, 18 May 2008As of 8:02 AM GMT, 18 May 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 20 May 6 Weeks AmericasAvnet >1k Buy Now
  Rochester Electronics >1k Buy Now
  AsiaWintech >1k Buy Now
TPS51020DBTRG4As of 8:02 AM GMT, 18 May 2008As of 8:02 AM GMT, 18 May 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 20 May 6 Weeks AmericasAvnet >1k Buy Now
  AsiaWPI >1k Buy Now
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
Back to TopProduct ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TPS51020DBT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS51020DBTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS51020DBTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS51020DBTRG4 RoHS Compliant 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
Back to TopDatasheets
Dual, Voltage Mode, DDR Selectable, (Rev. B) (tps51020.pdf, 729 KB)
11 Dec 2003 Download
Back to TopApplication Notes
View Application Notes for DC/DC Controllers (External Switch)
Back to TopUser Guides
Using the TPS51020 (sluu194.pdf, 502 KB)
08 Apr 2004 Download
View User Guides for DC/DC Controllers (External Switch)

Tools & Software
Back to Top Name Part # Company Tool / Software Type
TPS51020EVM Evaluation ModuleTPS51020EVM-001Texas InstrumentsDevelopment Boards/EVMs
TPS51100EVM-001 Evaluation ModuleTPS51100EVM-001Texas InstrumentsDevelopment Boards/EVMs
TPS51116EVM-001 Evaluation ModuleTPS51116EVM-001Texas InstrumentsDevelopment Boards/EVMs
TPS40K -DC/DC Controller Products Designer SoftwareTPS40K-SW Texas Instruments Application Software 

Related Products
Back to Top Alternative Products - Are similar to TPS51020
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TPS40200Wide Input Nonsynchronous Buck DC/DC ControllerTI customers also evaluated this product.
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TPS51120Dual Current Mode, Synch Step-Down Controller With 100-mA Standby Reg For Notebook System PowerTI customers also evaluated this product.
TPS51116DDR1, DDR2, DDR3 Switcher and LDOTI customers also evaluated this product.
TPS401924.5V to 18V Input, Low Pin Count, Synchronous Buck Controller with Power GoodTI customers also evaluated this product.
Back to Top Complementary Products - Can be used with TPS51020
Part #NameProduct FamilyComments
TPS51116 DDR1, DDR2, DDR3 Switcher and LDO NON-ISOLATED SWITCHING DC/DC REGULATORS- DC/DC CONTROLLERS (EXTERNAL SWITCH) Also considered DDR Power Solutions  
TPS51100 3A Source/Sink DDR terminator Regulator LINEAR REGULATORS- SINGLE CHANNEL LDO Also considered DDR Power Solutions  
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