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TPS54418 Status: ACTIVE

2.95V to 6V Input, 4A, 2MHz Synchronous Step Down SWIFT™ DCDC Converter


      
         
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Datasheet

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Functional Block Diagram


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 TPS54218 TPS54318 TPS54418
Iout(Max)(A)2  3  4  
Vin(Min)(V)2.95  2.95  2.95  
Vin(Max)(V)6  6  6  
Vout(Min)(V)0.8  0.8  0.8  
Vout(Max)(V)4.5  4.5  4.5  
Iq(Typ)(mA)0.6  0.6  0.6  
Switching Frequency(Max)(kHz)2000  2000  2000  
Switch Current Limit(Typ)(A)2.9  4  5  
TopologyBuck  Buck  Buck  
Operating Temp Range(Celsius)-40 to 150  -40 to 150  -40 to 150  
Pin/Package16QFN  16QFN  16QFN  
RatingCatalog  Catalog  Catalog  
Duty Cycle(Max)(%)98  98  98  
Regulated Outputs(#)1  1  1  
Thermal ShutdownYes  Yes  yes  
 SamplesSamplesSamples
 InventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS54218: 2.95V to 6V Input, 2A, 2MHz Synchronous Step Down SWIFT™ DCDC Converter
  • TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter
  • TPS54325: 4.5V to 18V Input, 3A Synchronous Step Down SWIFT™ Converter with D-CAP2™ Mode
  • TPS51200: Sink/Source DDR Termination Regulator
  • TPS51116: DDR1, DDR2, DDR3 Switcher and LDO
  • TPS51117: 1.8V to 28V Input Sync. Step Down Controller with DCAP™ Mode, Optimized for Light Load Efficiency

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Product Information

Features

  • Two 30 m(typical) MOSFETs for high efficiency at 4 A loads
  • 200kHz to 2MHz Switching Frequency
  • 0.8 V ± 1% Voltage Reference Over Temperature
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power Good Output
  • Low Operating and Shutdown Quiescent Current
  • Safe Start-up into Pre-Biased Output
  • Cycle by Cycle Current Limit, Thermal and Frequency Fold Back Protection
  • -40°C to 150°C Operating Junction Temperature Range
  • Thermally Enhanced 3mm × 3mm 16-pin QFN
  • APPLICATIONS
    • Low-Voltage, High-Density Power Systems
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors
    • Broadband, Networking and Optical Communications Infrastructure

SWIFT, PowerPAD are trademarks of Texas Instruments.

Description

The TPS54418 device is a full featured 6 V, 4 A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54418 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm x 3mm thermally enhanced QFN package.

The TPS54418 provides accurate regulation for a variety of loads with an accurate ±1% Voltage Reference (VREF) over temperature.

Efficiency is maximized through the integrated 30m MOSFETs and 350µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

Under voltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

Frequency fold back and thermal shutdown protects the device during an overcurrent condition.

The TPS54418 is supported in the SwitcherPro™ Software Tool at www.ti.com/switcherpro.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
TPS54418RTERACTIVE-40 to 1502.15 | 1kuQFN (RTE) | 16 3000 | LARGE T&R
TPS54418RTETACTIVE-40 to 1502.40 | 1kuQFN (RTE) | 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 10:03 AM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS54418RTER
None Reported
View Distributors
TI Lead Time*: 8 WeeksTPS54418RTET
None Reported
View Distributors
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** 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
TPS54418RTER RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS54418RTET 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 TPS54418 Help

Datasheet

Application Notes

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User Guides

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Tools & Software


*Required

Design Now with SwitcherPro™

Enter your design parameters below to design now with SwitcherPro™

 Input
      Min       Max
* Vin Min:   2.95 V     6 V
* Vin Max:   2.95 V     6 V
 Output
      Min       Max
* Vout:   0.8 V     4.5 V
* Iout Max:   0.0 A     4 A
 

Search for more Power Management devices with Power Quick Search on power.ti.com
To learn more about SwitcherPro™ visit www.ti.com/switcherpro

NamePart # Company Tool / Software Type
TPS54620 Design CalculatorTPS54620DESIGN-CALCTexas InstrumentsCalculation Utilities
TPS54418 3.3V Input, 1.8V Output, 4A SWIFT™ Converter Evaluation ModuleTPS54418EVM-375Texas InstrumentsDevelopment Boards/EVMs
SwitcherPro(TM) Online and Desktop Design Creator and Management SoftwareSWITCHERPRO Texas Instruments Application Software 

Simulation Models

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