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TPS54326 Status: ACTIVE

4.5V to 18V Input, 3A Synchronous Step-Down SWIFT™ Converter with Light Load


      
         
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 TPS54225 TPS54226 TPS54325 TPS54326
Iout(Max)(A)2  2  3  3  
Vin(Min)(V)4.5  4.5  4.5  4.5  
Vin(Max)(V)18  18  18  18  
Vout(Min)(V)0.76  0.76  0.76  0.76  
Vout(Max)(V)5.5  5.5  5.5  5.5  
Iq(Typ)(mA)0.8  0.8  0.85  0.85  
Switching Frequency(Typ)(kHz)700  700  700  700  
Switch Current Limit(Typ)(A)2.5  2.5  3.5  3.5  
TopologyBuck  Buck  Buck  Buck  
Operating Temp Range(Celsius)-40 to 85  -40 to 85  -40 to 85  -40 to 85  
Pin/Package14HTSSOP  14HTSSOP  14HTSSOP  14HTSSOP  
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

  • TPS54350: 4.5 to 20V, 3A Synchronous Step Down SWIFT™ Converter

Product Information

Features

  • D-CAP2 Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VCC Input Voltage Range: 4.5 V to 18 V
  • Wide VIN Input Voltage Range: 2 V to 18 V
  • Output Voltage Range: 0.76 V to 5.5 V
  • Highly Efficient Integrated FET’s Optimized for Lower Duty Cycle Applications - 120 m (High Side) and 70 m (Low Side)
  • High Efficiency, less than 10 µA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 700-kHz Switching Frequency (fSW)
  • Cycle-By-Cycle Overcurrent Limit
  • Power Good Output
  • APPLICATIONS
    • Wide Range of Applications for Low Voltage System
      • Digital TV Power Supply
      • High Definition Blu-ray Disc Players
      • Networking Home Terminal
      • Digital Set Top Box (STB)

All trademarks are the property of their respective owners.

Description

The TPS54326 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54326 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54326 uses the D-CAP2™ mode control which provides a fast transient response with no external components. The adoptive on-time control supports seamless operation between PWM mode at heavy load condition and reduced frequency operation at light load for high efficiency.

The TPS54326 also has a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
TPS54326PWPACTIVE-40 to 851.80 | 1kuHTSSOP (PWP) | 14 View 90 | TUBEPurchase Samples
TPS54326PWPRACTIVE-40 to 851.60 | 1kuHTSSOP (PWP) | 14 View 2000 | LARGE T&R

* 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 10:11 AM GMT, 22 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS54326PWP
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS54326PWPR
WorldwideDigiKey >1k
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
TPS54326PWP RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS54326PWPR 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 TPS54326 Help

Datasheet

User Guides

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
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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