TI Home > Semiconductors > Power Management > Non-Isolated Switching DC/DC Regulators > DC/DC Converters (Integrated Switch) > Step-Down Regulators >

TPS54972 Status: ACTIVE

9-A Active Bus Termination/ DDR Memory DC/DC Converter


      
         
Alert me about changes<br/>to this product

 TPS54372 TPS54672 TPS54872 TPS54972
Iout(Max)(A)3  6  8  9  
Vin(Min)(V)3  3  4  3  
Vin(Max)(V)6  6  6  4  
Vout(Min)(V)0.2  0.2  0.2  0.2  
Vout(Max)(V)4.5  4.5  3.3  2.5  
Iq(Typ)(mA)6.2  11  11  11  
Switching Frequency(Max)(kHz)700  700  700  700  
Switch Current Limit(Typ)(A)4  7  9  11  
TopologyBuck  Buck  Buck  Buck  
Operating Temp Range(Celsius)-40 to 85  -40 to 85  -40 to 85  -40 to 85  
Pin/Package20HTSSOP  28HTSSOP  28HTSSOP  28HTSSOP  
RatingCatalog  Catalog  Catalog  Catalog  
Duty Cycle(Max)(%)90  90  90  90  
Regulated Outputs(#)1  1  1  1  
Thermal Shutdownyes  yes  yes  yes  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS54910: 3V to 4V, 9A Synchronous Step Down SWIFT™ Converter
  • TPS54610: 3V to 6V, 6A Synchronous Step Down SWIFT™ Converter
  • TPS54372: 3-A Active Bus Termination/ DDR Memory DC/DC Converter
  • TPS74801: Single Output LDO, 1.5A, Adj. (0.8 to 3.6V), Programmable Soft-Start
  • TPS2041B: Single-Channel Current-Limited Power Distribution Switch
  • TPS2216: 1A Dual-Slot PC Card Power Switch w/ Serial Interface

Product Information

Features

  • Tracks Externally Applied Reference Voltage
  • 15-m MOSFET Switches for High Efficiency at 9-A Continuous Output Source or Sink Current
  • 6% to 90% VI Output Tracking Range
  • Wide PWM Frequency: Fixed 350 kHz or Adjustable 280 kHz to 700 kHz
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Integrated Solution Reduces Board Area and Total Cost
  • APPLICATIONS
    • DDR Memory Termination Voltage
    • Active Termination of GTL and SSTL High-Speed Logic Families
    • DAC Controlled High Current Output Stage
    • Precision Point of Load Power Supply

Description

As a member of the SWIFT™ family of dc/dc regulators, the TPS54972 low-input voltage high-output current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter L and C components; an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 3.0 V; an internally set slow-start circuit to limit in-rush currents; and a status output to indicate valid operating conditions.

The TPS54972 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
TPS54972PWPACTIVE-40 to 854.05 | 1kuHTSSOP (PWP) | 28 View 50 | TUBE Download CAD Format for this Symbol
TPS54972PWPG4ACTIVE-40 to 854.05 | 1kuHTSSOP (PWP) | 28 View 50 | TUBE Download CAD Format for this Symbol
TPS54972PWPRACTIVE-40 to 853.65 | 1kuHTSSOP (PWP) | 28 View 2000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS54972PWPRG4ACTIVE-40 to 853.65 | 1kuHTSSOP (PWP) | 28 View 2000 | 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

Reported Distributor Inventory as of 10:12 AM GMT, 24 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS54972PWP
AsiaFarnell Asia 17
EuropeFarnell 17
TI Lead Time*: 20 WeeksTPS54972PWPG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS54972PWPR
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS54972PWPRG4
None Reported
View Distributors
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
TPS54972PWP RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS54972PWPG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS54972PWPR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS54972PWPRG4 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 TPS54972 Help

Datasheet

Application Notes

View Application Notes for Step-Down Regulators

User Guides

Selection Guides

More Literature

View More Literature for Step-Down Regulators

Tools & Software

NamePart # Company Tool / Software Type
9-A Active Bus Termination/DDR Memory DC/DC ConverterTPS54972EVM-222Texas InstrumentsDevelopment Boards/EVMs
XILINXPWR-082 Power Management Evaluation Module for Xilinx FPGAsXILINXPWR-082Texas InstrumentsDevelopment Boards/EVMs

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS54910 3V to 4V, 9A Synchronous Step Down SWIFT™ Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS54610 3V to 6V, 6A Synchronous Step Down SWIFT™ Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS54372 3-A Active Bus Termination/ DDR Memory DC/DC Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS74801 Single Output LDO, 1.5A, Adj. (0.8 to 3.6V), Programmable Soft-Start LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS2041B Single-Channel Current-Limited Power Distribution Switch PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.
TPS2216 1A Dual-Slot PC Card Power Switch w/ Serial Interface PCMCIA AND USB-PCMCIA/CARDBUS SWITCH MATRIX TI customers also evaluated this product.
TPS65020 6-channel Power Mgmt IC with 3DC/DCs, 3 LDOs, I2C interface and Dynamic Voltage Scaling POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER TI customers also evaluated this product.
TPS61041 28-V, 250-mA Switch Boost Converter in SOT-23 for LCD and White LED Applications LIGHTING AND DISPLAY SOLUTIONS-WHITE LED DRIVERS TI customers also evaluated this product.

All End-Equipment

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here