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TPS54291 Status: ACTIVE

4.5V to 18V Input, 1.5/2.5A, 600 kHz Dual Synchronous Step Down SWIFT™ Converter


      
         
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Datasheet

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 TPS54290 TPS54291TPS54292 
Iout(Max)(A)2.5  2.5  2.5  
Iout2(Max)(A)1.5  1.5  1.5  
Vin(Min)(V)4.5  4.5  4.5  
Vin(Max)(V)18  18  18  
Vout(Min)(V)0.8  0.8  0.8  
Vout(Max)(V)16.2  15.3  14  
Iq(Typ)(mA)1.8  1.8  1.8  
Switching Frequency(Typ)(kHz)300  600  1200  
Switch Current Limit(Typ)(A)3.8  3.8  3.8  
TopologyBuck  Buck  Buck  
Operating Temp Range(Celsius)-40 to 145  -40 to 145  -40 to 145  
Pin/Package16HTSSOP  16HTSSOP  16HTSSOP  
RatingCatalog  Catalog  Catalog  
Duty Cycle(Max)(%)90  85  78  
Vout2(Min)(V)0.8  0.8  0.8  
Vout2(Max)(V)16.2  15.2  14  
Regulated Outputs(#)2  2  2  
Thermal ShutdownYes  Yes  Yes  
 SamplesSamplesSamples
 InventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS54292: 4.5V to 18V Input, 1.5/2.5A, 1.2 MHz Dual Synchronous Step Down SWIFT™ Converter
  • TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter
  • TPS54226: 4.5V to 18V Input, 2A Synchronous Step Down SWIFT™ Converter with Light Load Efficiency
  • TPS2066: Dual 1A Current-Limited, Power-Distribution Switches
  • TLV70018: 200mA, Low IQ, Low Dropout Regulator for Portables
  • TPS74701: Single Output LDO, 500mA, Adj. (0.8 to 3.6V), Programmable Soft-Start

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Product Information

Features

  • 4.5 V to 18 V Input Range
  • Output Voltage Range 0.8 V to DMAX × VIN
  • Fully Integrated Dual Buck, 1.5 A/2.5 A
  • Three Fixed Switching Frequency Versions:
    • TPS54290 – 300 kHz
    • TPS54291 – 600 kHz
    • TPS54292 – 1.2 MHz
  • Integrated UVLO
  • 0.8 VREF With 1% Accuracy (0°C to 85°C)
  • Internal Soft-Start
    • TPS54290 – 5.2 ms
    • TPS54291 – 2.6 ms
    • TPS54292 – 1.3 ms
  • Dual PWM Outputs 180° Out-of-Phase
  • Dedicated Enable for Each Channel
  • Current Mode Control for Simplified Compensation
  • External Compensation
  • Pulse-by-Pulse Overcurrent Protection, 2.2 A/3.8 A Overcurrent Limit
  • Integrated Bootstrap Switch
  • Thermal Shutdown Protection at 145°C

View All Features in Datasheet

Description

TPS54290/1/2 is a dual output fully synchronous buck converter capable of supporting applications with a minimal number of external components. It operates from a 4.5 V to 18 V input supply voltage, and supports output voltages as low as 0.8 V and as high as 90% of the input voltage.

Both high-side and low-side MOSFETs are integrated to provide fully synchronous conversion with higher efficiency. Channel1 can provide up to 1.5 A of continuous current, meanwhile, Channel2 supports up to 2.5 A.

Current mode control simplifies the compensation. The external compensation adds flexibility for the user to choose different type of output capacitors.

180° out-of-phase operation reduces the ripple current through the input capacitor, providing the benefit of reducing input capacitance, alleviating EMI and increasing capacitor life.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
TPS54291PWPACTIVE-40 to 1453.25 | 1kuHTSSOP (PWP) | 16 View 90 | TUBEPurchase Samples
TPS54291PWPRACTIVE-40 to 1452.95 | 1kuHTSSOP (PWP) | 16 View 2000 | TUBE

* 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 9:51 AM GMT, 09 Feb 2010
RegionCompanyIn StockPurchase
TI Lead Time*: 22 WeeksTPS54291PWP
None Reported
View Distributors
TI Lead Time*: 22 WeeksTPS54291PWPR
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
TPS54291PWP RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS54291PWPR 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 TPS54291 Help

Datasheet

User Guides

Tools & Software

NamePart # Company Tool / Software Type
12V Input, 3.3V 1.5A and 1.2V and 2.5A Dual Sync Buck Converter Evaluation ModuleTPS54291EVM-431Texas InstrumentsDevelopment Boards/EVMs

Simulation Models

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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.
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