TI Home > Semiconductors > Power Management > Non-Isolated Switching DC/DC Regulators > DC/DC Controllers (External Switch) >

TPS51222 Status: ACTIVE

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


      
         
Alert me about changes<br/>to this product

 TPS51020 TPS5120 TPS51221 TPS51222TPS5124 
TopologyBuck  Buck  Buck  Buck  Buck  
Vin(Min)(V)4.5  4.5  4.5  4.5  4.5  
Vin(Max)(V)28  28  28  32  15  
Vout(Min)(V)0.9  0.9  1  1  0.9  
Vout(Max)(V)24  26  12  12  12  
Regulated Outputs(#)2  2  2  2  2  
Iout(Max)(A)20  20  20  20  20  
Switching Frequency(Max)(kHz)450  500  1000  1000  500  
Iq(Typ)(mA)1.4  1.1  1.3   1.1  
Pin/Package30TSSOP  30TSSOP  32QFN  32QFN  30TSSOP  
Thermal ShutdownYes  Yes  Yes  Yes  No  
Vout2(Min)(V)0.9  0.9  1  1  0.9  
Vout2(Max)(V)24  26  12  12  12  
Iout2(A)20  15  20  20  20  
RatingCatalog  Catalog  Catalog  Catalog  Catalog  
Duty Cycle(Max)(%)88  80  99  99  80  
 SamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPS51513: 3V to 28V Input Sync. Step Down Controller with D-CAP+™ Mode and Integrated Gate Drivers
  • TPS51220A: Fixed-Frequency, 99% Duty Cycle Peak Current-Mode Notebook System Pwr Controller
  • TPS51221: Fixed Frequency 99% Duty Cycle Peak Current Mode Notebook System Power Dual Controller
  • TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter
  • TPS51315: 3V to 14V, 10A Synchronous Step Down Converter with D-CAP™ Mode
  • TPS54160: 3.5V to 60V, 1.5A Step Down SWIFT™ Converter with Eco-Mode™

More Related Products

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
  • Current Mode Architecture
  • 180° Phase Shift Between Channels
  • Resistor or Inductor DCR Current Sensing
  • Current Monitor Output for Each Channel
  • Adaptive Zero Crossing Circuit
  • Powergood Output for Each Channel
  • OCL/OVP/UVP/UVLO Protections
  • Thermal Shutdown (Non-Latch)
  • Output Discharge Function
  • Integrated Boot Strap MOSFET Switch
  • QFN-32 (RTV) Package

    • Description

    The TPS51222 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 TPS51222 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. Peak current mode supports stability operation with lower ESR capacitor and output accuracy. The high duty cycle (99%) operation and the wide input/output voltage range supports flexible design for small mobile PCs and a wide variety of other applications. The fixed frequency can be adjusted from 200 kHz to 1 MHz by a resistor, and each channel runs 180° out-of-phase.

    View All Description in Datasheet

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
TPS51222RTVRACTIVE-40 to 853.00 | 1kuQFN (RTV) | 32 3000 | LARGE T&R
TPS51222RTVTACTIVE-40 to 853.30 | 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 WeeksTPS51222RTVR
AsiaWPI >1k
WorldwideDigiKey 49
TI Lead Time*: 16 WeeksTPS51222RTVT
AmericasArrow 250
Avnet 250
Newark 500
AsiaFarnell Asia 250
EuropeArrow Northern Europe 250
Avnet-SILICA 250
EBV Elektronik 125
Farnell 250
Spoerle 250
WorldwideMouser 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
TPS51222RTVR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARView 
TPS51222RTVT 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 TPS51222 Help

Datasheet

Application Notes

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

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TPS51513 3V to 28V Input Sync. Step Down Controller with D-CAP+™ Mode and Integrated Gate Drivers NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51220A Fixed-Frequency, 99% Duty Cycle Peak Current-Mode Notebook System Pwr Controller NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51221 Fixed Frequency 99% Duty Cycle Peak Current Mode Notebook System Power Dual Controller NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51220 Fixed Frequency, 99% Duty Cycle Peak Current Mode Notebook System Power Controller NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51020 Dual, DDR selectable, Synchronous buck controller NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51116 DDR1, DDR2, DDR3 Switcher and LDO NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51123 Dual-Synchronous, Step-Down Controller w/ Out-of-Audio Operation, 100-mA LDOs for Notebook Sys. Pwr NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51218 3V to 28V Input. 20A Synchronous Step Down Controller with DCAP™ Mode for Notebook Power Supply NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51120 Dual Current Mode, Synch Step-Down Controller With 100-mA Standby Reg For Notebook System Power NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51117 1.8V to 28V Input Sync. Step Down Controller with DCAP™ Mode, Optimized for Light Load Efficiency NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) 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.
TPS51315 3V to 14V, 10A Synchronous Step Down Converter with D-CAP™ Mode DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS54160 3.5V to 60V, 1.5A Step Down SWIFT™ Converter with Eco-Mode™ DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS54331 3A, 28V Input, 570 kHz Step Down SWIFT™ DC/DC Converter with Eco-mode ™ DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS65023 6-channel Power Mgmt IC with 3DC/DCs, 3 LDOs, I2C Interface and DVS, Optimized for DaVinci DSPs POWER MANAGEMENT MULTI-CHANNEL IC (PMIC) SOLUTIONS-PMIC SOLUTIONS WITH AND WITHOUT BATTERY CHARGER TI customers also evaluated this product.
TPS2041B Single-Channel Current-Limited Power Distribution Switch PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.

All End-Equipment

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here