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TPS40197 Status: ACTIVE

4.5V To 14V Input Synchronous Buck Controller With 4-Bit Vid Interface And Power Good


      
         
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 TPS40197
TopologyBuck  
Vin(Min)(V)4.5  
Vin(Max)(V)14  
Vout(Min)(V)0.9  
Vout(Max)(V)1.2  
Regulated Outputs(#)1  
Iout(Max)(A)6  
Switching Frequency(Max)(kHz)520  
Pin/Package16QFN  
Thermal ShutdownYes  
RatingCatalog  
Duty Cycle(Max)(%)85  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • TPS40195: 4.5V to 20V Buck Controller with Synchronization and Power Good
  • TPS40192: 4.5V to 18V Input, Low Pin Count, Synchronous Buck Controller with Power Good
  • TPS54325: 4.5V to 18V Input, 3A Synchronous Step Down SWIFT™ Converter with D-CAP2™ Mode
  • TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter
  • TL431: Adjustable Precision Shunt Regulator

Product Information

Features

  • Input Voltage Range: 4.5 V to 14 V
  • 4-Bit Dynamic VID-On-The-Fly Support
  • VID Programmable Output Voltage with Programmable Transition Rate
  • Fixed Switching Frequency of 520 kHz
  • Selectable Low-Side (Three Settings) and Fixed High-Side Thermally Compensated Overcurrent Protection
  • Power Good Indicator
  • Internal 5-V Regulator
  • Voltage Mode Control
  • InternallyFixed 5.5-ms Soft-Start Time
  • Pre-Bias Output Safe
  • Thermal Shutdown at 140°C
  • 16-Pin QFN Package
  • APPLICATIONS
    • Smart-Reflex™ DSPs
    • POL Modules
    • Telecom

SMART-REFLEX, Smart-Reflex, PowerPAD are trademarks of Texas Instruments.

Description

The TPS40197 is a synchronous buck controller that operates from 4.5 V to 14 V input supply nominally. The controller implements voltage-mode control architecture with the switching frequency fixed at 520 kHz. The higher switching frequency facilitates the use of smaller inductor and output capacitors, thereby providing a compact power-supply solution. An adaptive anti-cross conduction scheme is used to prevent shoot through current in the power FETs.

The TPS40197 integrates the PWM control and 4-bit VID interface in a single chip to allow seamless on-the-fly VID changes with programmable transition rate. It provides a simple power solution for Smart-Reflex™ DSP cores.

Short circuit detection is done by sensing the voltage drop across the low-side FET when it is on and comparing it with a user selected threshold of 100 mV, 200 mV or 280 mV.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
TPS40197RGYRACTIVE-40 to 851.75 | 1kuQFN (RGY) | 16 3000 | LARGE T&R
TPS40197RGYTACTIVE-40 to 851.95 | 1kuQFN (RGY) | 16 250 | SMALL T&RPurchase 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 10:14 AM GMT, 26 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 16 WeeksTPS40197RGYR
WorldwideDigiKey >1k
TI Lead Time*: 20 WeeksTPS40197RGYT
AmericasAvnet 250
Newark 250
AsiaFarnell Asia 245
EuropeArrow Northern Europe 250
Arrow Southern Europe 250
Avnet-SILICA 250
Farnell 245
WorldwideDigiKey  Available
Mouser Electronics 250
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
TPS40197RGYR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS40197RGYT 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 TPS40197 Help

Datasheet

Application Notes

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

Part # Name Product Family Comments
TMS320C6474   Multicore Digital Signal Processor   TMS320C6000 DSP PLATFORM - TMS320C647X MULTICORE DSPS   TPS40197 is designed specifically for TI DSP cores that use the SmartReflex™ i.e TMS320C6474    
Customers Who Evaluated This Product Also Evaluated...
TPS40195 4.5V to 20V Buck Controller with Synchronization and Power Good NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS40192 4.5V to 18V Input, Low Pin Count, Synchronous Buck Controller with Power Good NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS54325 4.5V to 18V Input, 3A Synchronous Step Down SWIFT™ Converter with D-CAP2™ Mode DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS 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.
TL431 Adjustable Precision Shunt Regulator VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE TI customers also evaluated this product.
TPS54350 4.5 to 20V, 3A Synchronous Step Down SWIFT™ Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.

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