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TPS51020 Status: ACTIVE

Dual, DDR selectable, Synchronous buck controller


      
         
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Datasheet

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 TPS51020TPS5120 TPS51221 TPS51222 TPS5124 
TopologyBuck  Buck  Buck  Buck  Buck  
Vin(Min)(V)4.5  4.5  4.5  4.5  4.5  
Vin(Max)(V)28  28  28  32  15  
Vout(Min)(V)0.9  0.9  1  1  0.9  
Vout(Max)(V)24  26  12  12  12  
Regulated Outputs(#)2  2  2  2  2  
Iout(Max)(A)20  20  20  20  20  
Switching Frequency(Max)(kHz)450  500  1000  1000  500  
Iq(Typ)(mA)1.4  1.1  1.3   1.1  
Pin/Package30TSSOP  30TSSOP  32QFN  32QFN  30TSSOP  
Thermal ShutdownYes  Yes  Yes  Yes  No  
Vout2(Min)(V)0.9  0.9  1  1  0.9  
Vout2(Max)(V)24  26  12  12  12  
Iout2(A)20  15  20  20  20  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  
Duty Cycle(Max)(%)88  80  99  99  80  
 SamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS51117: 1.8V to 28V Input Sync. Step Down Controller with DCAP™ Mode, Optimized for Light Load Efficiency
  • TPS51120: Dual Current Mode, Synch Step-Down Controller With 100-mA Standby Reg For Notebook System Power
  • TPS51221: Fixed Frequency 99% Duty Cycle Peak Current Mode Notebook System Power Dual Controller
  • BQ24030: Dual Input Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 6V, Vbat 4.2V
  • TL4242: Adjustable LED Driver
  • TPS51315: 3V to 14V, 10A Synchronous Step Down Converter with D-CAP™ Mode

More Related Products

Product Information

Features

  • Wide Input Voltage Range: 4.5-V to 28-V
  • Selectable Dual and DDR Modes
  • Selectable Fixed Frequency Voltage Mode
  • 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

Description

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.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
TPS51020DBTACTIVE-40 to 852.35 | 1kuTSSOP (DBT) | 30 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
TPS51020DBTG4ACTIVE-40 to 852.35 | 1kuTSSOP (DBT) | 30 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
TPS51020DBTRACTIVE-40 to 852.10 | 1kuTSSOP (DBT) | 30 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TPS51020DBTRG4ACTIVE-40 to 852.10 | 1kuTSSOP (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

Reported Distributor Inventory as of 10:13 AM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS51020DBT
AmericasAvnet 396
Newark 55
Rochester Electronics 251
AsiaFarnell Asia 23
WPI 52
EuropeFarnell 23
TI Lead Time*: 20 WeeksTPS51020DBTG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS51020DBTR
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS51020DBTRG4
AsiaWPI 480
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
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

Most useful technical documents for TPS51020 Help

Datasheet

User Guides

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

Tools & Software

NamePart # 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

Part # Name Product Family Comments
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    
Customers Who Evaluated This Product Also Evaluated...
TPS51117 1.8V to 28V Input Sync. Step Down Controller with DCAP™ Mode, Optimized for Light Load Efficiency NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51120 Dual Current Mode, Synch Step-Down Controller With 100-mA Standby Reg For Notebook System Power NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51221 Fixed Frequency 99% Duty Cycle Peak Current Mode Notebook System Power Dual Controller NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS5120 Dual Output, Two-Phase Synchronous Buck Controller with Wide Input Voltage Range NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
BQ24030 Dual Input Li-Ion Charger with Dynamic Power-Path Management, Output regulated to 6V, Vbat 4.2V BATTERY MANAGEMENT-BATTERY CHARGE MANAGEMENT TI customers also evaluated this product.
TL4242 Adjustable LED Driver LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS TI customers also evaluated this product.
TPS51315 3V to 14V, 10A Synchronous Step Down Converter with D-CAP™ Mode DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS2062A Current-limited, Power Distribution Switches PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS71727 Single Output LDO, 150mA, Fixed (2.7V), High PSRR, Low Quiescent Current, Low Noise LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS54620 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS3106K33 Ultra Low-Supply Current/Supply-Voltage Supervisory Circuits POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS) TI customers also evaluated this product.
TPS2062 Dual 1A Current-Limited, Power-Distribution Switches PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS73025 Single Output LDO, 200mA, Fixed(2.5V), High PSRR, Low Noise LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS62110 Adjustable, 1.5-A, 17-V Vin Step-Down Converter in QFN-16 DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.

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