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

TPS5120 Status: ACTIVE

Dual Output, Two-Phase Synchronous Buck Controller with Wide Input Voltage Range


      
         
Alert me about changes<br/>to this product

 TPS51020 TPS5120TPS51221 TPS51222 TPS5124 
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

Other qualified versions of TPS5120

Version Part Number Definition
Automotive TPS5120-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects
Enhanced Product TPS5120-EP Supports Defense, Aerospace and Medical Applications

Customers Who Evaluated This Product Also Evaluated

  • TPS51117: 1.8V to 28V Input Sync. Step Down Controller with DCAP™ Mode, Optimized for Light Load Efficiency
  • TPS51020: Dual, DDR selectable, Synchronous buck controller
  • TL5001A: PWM Controller with Wide Input Voltage Range
  • UCC2808A-1: Low-Power Current-Mode Push-Pull PWM
  • TPS51100: 3A Source/Sink DDR terminator Regulator
  • TPS54310: 3V to 6V, 3A Synchronous Step Down SWIFT™ Converter

Product Information

Features

  • Independent Dual-Outputs Operate 180° Out of Phase
  • Wide Input Voltage Range: 4.5-V – 28-V
  • Adjustable Output Voltage Down to 0.9 V
  • Pin-Selectable PWM/SKIP Mode for High Efficiency Under Light Loads
  • Synchronous Buck Operation Allows up to 95% Efficiency
  • Separate Standby Control and Overcurrent Protection for Each Channel
  • Programmable Short-Circuit Protection
  • Low Supply (1 mA) and Shutdown (1 nA) Current
  • Power Good Output
  • High-Speed Error Amplifiers
  • Sequencing Easily Achieved by Selecting Softstart Capacitor Values.
  • 5-V Linear Regulator Power Internal IC Circuitry
  • 30-Pin TSSOP Packaging

Description

The TPS5120 is a dual channel, high-efficiency synchronous buck controller where the outputs run 180 degrees out of phase, which lowers the input current ripple, thereby reducing the input capacitance cost. The PWM/SKIP pin allows the operating mode to switch from PWM mode to skip mode under light load conditions. The skip mode enables a lower operating frequency and shortens the pulse width to the low-side MOSFET, increasing the efficiency under light load conditions. These two modes, along with synchronous-rectifier drivers, dead time, and very low quiescent current, allow power to be conserved and the battery life to be extended under all load conditions. The 1.5 A (typical) high-side and low-side MOSFET drivers on-chip are designed to drive less expensive N-channel MOSFETs. The resistorless current protection and fixed high-side driver voltage simplify the power supply design and reduce the external parts count. Each channel is independent, offering a separate controller, overcurrent protection, and standby control. Sequencing is flexible and can be tailored by choosing different softstart capacitor values. Other features, such as undervoltage lockout, power good, overvoltage, undervoltage, and programmable short-circuit protection promote system reliability.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
TPS5120DBTACTIVE-40 to 853.30 | 1kuTSSOP (DBT) | 30 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
TPS5120DBTG4ACTIVE-40 to 853.30 | 1kuTSSOP (DBT) | 30 View 60 | TUBE Download CAD Format for this Symbol Download CAD Format for this Footprint
TPS5120DBTRACTIVE-40 to 853.00 | 1kuTSSOP (DBT) | 30 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TPS5120DBTRG4ACTIVE-40 to 853.00 | 1kuTSSOP (DBT) | 30 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase 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 10:04 AM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTPS5120DBT
AmericasArrow 1
Newark 13
Rochester Electronics >1k
AsiaFarnell Asia 11
EuropeArrow Northern Europe 3
Farnell 5
TI Lead Time*: 20 WeeksTPS5120DBTG4
AsiaFarnell Asia 51
EuropeFarnell 51
TI Lead Time*: 20 WeeksTPS5120DBTR
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS5120DBTRG4
None Reported
View Distributors
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
TPS5120DBT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS5120DBTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS5120DBTR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS5120DBTRG4 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 TPS5120 Help

Datasheet

Reference Designs

Description Part # Company
Hot Swap, Push-Pull, Sync. Buck, Negative Flyback, Dual Sync. Buck Reference Design PMP156 Texas Instruments
Sync Buck with Vin 12 V PMP217 Texas Instruments
Sync Buck with Vin 19.5 V PMP070 Texas Instruments
Sync. Buck with Integrated FET, Forward, Dual Sync. Buck Reference Design PMP041 Texas Instruments
Two-Phase Sync. Buck with Vin 5 or 12 V. Multiple output voltages of 1.8 V and 3.3 V PMP176 Texas Instruments

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
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.
TPS51020 Dual, DDR selectable, Synchronous buck controller NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TL5001A PWM Controller with Wide Input Voltage Range NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
UCC2808A-1 Low-Power Current-Mode Push-Pull PWM AC/DC AND DC/DC POWER SUPPLIES-PWM POWER SUPPLY CONTROLLERS TI customers also evaluated this product.
TPS51100 3A Source/Sink DDR terminator Regulator LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS54310 3V to 6V, 3A Synchronous Step Down SWIFT™ Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
TPS79633 Single Output LDO, 1.0A, Fixed(3.3V), Low Noise, High PSRR LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS54231 2A, 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.
TPS3808G01 Low Quiescent Current, Programmable-Delay Supervisory Circuit POWER MANAGEMENT-SUPERVISORY CIRCUITS(VOLTAGE SUPERVISORS) TI customers also evaluated this product.
TPS70402 Dual-output 1A/2A Low Dropout (LDO) with dual enables and SVS for split-voltage systems LINEAR REGULATORS-DUAL CHANNEL LDO TI customers also evaluated this product.
LM317L 3/8 Pin 100mA Adjustable Positive Regulator LINEAR REGULATORS-STANDARD VOLTAGE REGULATORS TI customers also evaluated this product.
TL431 Adjustable Precision Shunt Regulator VOLTAGE REFERENCE-SHUNT VOLTAGE REFERENCE TI customers also evaluated this product.
TPS2051B Single, Current-Limited, Power-Distribution Switch PCMCIA AND USB-USB POWER SWITCHES TI customers also evaluated this product.

Support and Community

Customer Tags Help

No Tags are Available for this Part Number

Other Support



Click Here