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TPS51220A Status: ACTIVE

Fixed-Frequency, 99% Duty Cycle Peak Current-Mode Notebook System Pwr Controller


      
         
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 TPS51220A
TopologyBuck,D-CAP™ Mode  
Vin(Min)(V)4.5  
Vin(Max)(V)32  
Vout(Min)(V)1  
Vout(Max)(V)12  
Regulated Outputs(#)2  
Iout(Max)(A)20  
Switching Frequency(Max)(kHz)1000  
Iq(Typ)(mA)1.3  
Pin/Package32QFN  
Thermal ShutdownYes  
Vout2(Min)(V)1  
Vout2(Max)(V)12  
Iout2(A)20  
RatingCatalog  
Duty Cycle(Max)(%)99  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

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  • TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter
  • TPS5430: 5.5V to 36V, 3A, 500kHz Step Down SWIFT™ Converter
  • TPS62601: 500-mA, 6-MHz Synchronous Step-Down Converter in Chip Scale Packaging

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Product Information

Features

  • Input Voltage Range: 4.5 V to 32 V
  • Output Voltage Range: 1 V to 12 V
  • Selectable Light Load Operation (Continuous / Auto Skip / Out-Of-Audio Skip)
  • Programmable Droop Compensation
  • Voltage Servo Adjustable Soft Start
  • 200-kHz to 1-MHz Fixed-Frequency PWM
  • Selectable Current/D-CAP Mode Architecture
  • 180° Phase Shift Between Channels
  • Resistor or Inductor DCR Current Sensing
  • Adaptive Zero Crossing Circuit
  • Powergood Output for Each Channel
  • OCL/OVP/UVP/UVLO Protections
    (OVP Disable Option)
  • Thermal Shutdown (Non-Latch)
  • Output Discharge Function (Disable Option)
  • Integrated Boot Strap MOSFET Switch
  • QFN-32 (RTV) Package
  • APPLICATIONS
    • Notebook Computer System and I/O Bus
    • Point of Load in LCD TV, MFP

Description

The TPS51220A is a dual synchronous buck regulator controller with two LDOs. It is optimized for 5-V/3.3-V system controller, enabling designers to cost effectively complete 2-cell to 4-cell notebook system power supply. The TPS51220A supports high efficiency, fast transient response, and 99% duty cycle operation. It supports supply input voltage ranging from 4.5 V to 32 V, and output voltages from 1 V to 12 V. Two types of control schemes can be chosen depending on the application. Peak current mode supports stability operation with lower ESR capacitor and output accuracy. The D-CAP mode supports fast transient response. The high duty (99%) operation and the wide input/output voltage range supports flexible design for small mobile PCs and a wide variety of other applications.

View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
TPS51220ARTVRACTIVE-40 to 852.25 | 1kuQFN (RTV) | 32 3000 | LARGE T&R
TPS51220ARTVTACTIVE-40 to 852.50 | 1kuQFN (RTV) | 32 250 | 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 10:13 AM GMT, 20 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS51220ARTVR
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS51220ARTVT
AsiaFarnell Asia 50
EuropeArrow Northern Europe 250
Farnell 50
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
TPS51220ARTVR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARView 
TPS51220ARTVT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARView 

* 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 TPS51220A Help

Datasheet

Application Notes

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

User Guides

View User Guides for DC/DC Controllers (External Switch)

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TPS51116 DDR1, DDR2, DDR3 Switcher and LDO NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
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