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TPS51116 Status: ACTIVE

DDR1, DDR2, DDR3 Switcher and LDO


      
         
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 TPS51116
TopologyBuck,D-CAP™ Mode  
Vin(Min)(V)3  
Vin(Max)(V)28  
Vout(Min)(V)1.5  
Vout(Max)(V)3  
Regulated Outputs(#)1  
Iout(Max)(A)10  
Switching Frequency(Max)(kHz)400  
Iq(Typ)(mA)0.8  
Pin/Package20HTSSOP, 24VQFN  
Thermal ShutdownYes  
RatingCatalog  
Duty Cycle(Max)(%)84  
 Samples
 Inventory

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
  • TPS51124: Dual, Synchronous Step Down Controller for Low Voltage System Power
  • TPS51220: Fixed Frequency, 99% Duty Cycle Peak Current Mode Notebook System Power Controller
  • TPS51200: Sink/Source DDR Termination Regulator
  • TPS51100: 3A Source/Sink DDR terminator Regulator
  • TPS5430: 5.5V to 36V, 3A, 500kHz Step Down SWIFT™ Converter

More Related Products

Product Information

Features

  • Synchronous Buck Controller (VDDQ)
    • Wide-Input Voltage Range: 3.0-V to 28-V
    • D-CAP™ Mode with 100-ns Load Step Response
    • Current Mode Option Supports Ceramic Output Capacitors
    • Supports Soft-Off in S4/S5 States
    • Current Sensing from RDS(on) or Resistor
    • 2.5-V (DDR), 1.8-V (DDR2), Adjustable to 1.5-V (DDR3) or Output Range 0.75-V to 3.0-V
    • Equipped with Powergood, Overvoltage Protection and Undervoltage Protection
  • 3-A LDO (VTT), Buffered Reference (VREF)
    • Capable to Sink and Source 3 A
    • LDO Input Available to Optimize Power Losses
    • Requires only 20-µF Ceramic Output Capacitor
    • Buffered Low Noise 10-mA VREF Output
    • Accuracy ±20 mV for both VREF and VTT
    • Supports High-Z in S3 and Soft-Off in S4/S5
    • Thermal Shutdown
  • APPLICATIONS
    • DDR/DDR2/DDR3/LPDDR3 Memory Power Supplies
    • SSTL-2 SSTL-18 and HSTL Termination

Description

The TPS51116 provides a complete power supply for DDR/SSTL-2, DDR2/SSTL-18, and DDR3 memory systems. It integrates a synchronous buck controller with a 3-A sink/source tracking linear regulator and buffered low noise reference. The TPS51116 offers the lowest total solution cost in systems where space is at a premium. The TPS51116 synchronous controller runs fixed 400kHz pseudo-constant frequency PWM with an adaptive on-time control that can be configured in D-CAP Mode for ease of use and fastest transient response or in current mode to support ceramic output capacitors. The 3-A sink/source LDO maintains fast transient response only requiring 20-µF (2 × 10 µF) of ceramic output capacitance. In addition, the LDO supply input is available externally to significantly reduce the total power losses. The TPS51116 supports all of the sleep state controls placing VTT at high-Z in S3 (suspend to RAM) and discharging VDDQ, VTT and VTTREF (soft-off) in S4/S5 (suspend to disk). TPS51116 has all of the protection features including thermal shutdown and is offered in both a 20-pin HTSSOP PowerPAD package and 24-pin 4×4 QFN.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
TPS51116PWPACTIVE-40 to 851.35 | 1kuHTSSOP (PWP) | 20 View 70 | TUBE Download CAD Format for this Symbol
TPS51116PWPG4ACTIVE-40 to 851.35 | 1kuHTSSOP (PWP) | 20 View 70 | TUBE Download CAD Format for this Symbol
TPS51116PWPRACTIVE-40 to 851.20 | 1kuHTSSOP (PWP) | 20 View 2000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS51116PWPRG4ACTIVE-40 to 851.20 | 1kuHTSSOP (PWP) | 20 View 2000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS51116RGERACTIVE-40 to 851.20 | 1kuVQFN (RGE) | 24 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS51116RGERG4ACTIVE-40 to 851.20 | 1kuVQFN (RGE) | 24 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS51116RGETACTIVE-40 to 851.35 | 1kuVQFN (RGE) | 24 View 250 | SMALL T&R Download CAD Format for this Symbol
TPS51116RGETG4ACTIVE-40 to 851.35 | 1kuVQFN (RGE) | 24 View 250 | SMALL T&R Download CAD Format for this Symbol

* 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 WeeksTPS51116PWP
AmericasArrow 714
EuropeArrow Southern Europe 350
TI Lead Time*: 20 WeeksTPS51116PWPG4
AsiaFarnell Asia 27
TI Lead Time*: 20 WeeksTPS51116PWPR
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS51116PWPRG4
AmericasRochester Electronics >1k
TI Lead Time*: 20 WeeksTPS51116RGER
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS51116RGERG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS51116RGET
None Reported
View Distributors
TI Lead Time*: 20 WeeksTPS51116RGETG4
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
TPS51116PWP RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS51116PWPG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS51116PWPR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS51116PWPRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS51116RGER RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS51116RGERG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS51116RGET RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TPS51116RGETG4 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 TPS51116 Help

Datasheet

Application Notes

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

User Guides

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

Solution Guides

More Literature

Tools & Software

NamePart # Company Tool / Software Type
TPS51100EVM-001 Evaluation ModuleTPS51100EVM-001Texas InstrumentsDevelopment Boards/EVMs
TPS51116EVM-001 Evaluation ModuleTPS51116EVM-001Texas InstrumentsDevelopment Boards/EVMs

Simulation Models

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.
TPS51124 Dual, Synchronous Step Down Controller for Low Voltage System Power 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.
TPS51610 Single Phase D-CAP+™Mode Step Down Controller for IMVP6+ CPU/GPU Vcore NON-ISOLATED SWITCHING DC/DC REGULATORS-DC/DC CONTROLLERS (EXTERNAL SWITCH) TI customers also evaluated this product.
TPS51200 Sink/Source DDR Termination Regulator LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS51100 3A Source/Sink DDR terminator Regulator LINEAR REGULATORS-SINGLE CHANNEL LDO TI customers also evaluated this product.
TPS5430 5.5V to 36V, 3A, 500kHz Step Down SWIFT™ Converter DC/DC CONVERTERS (INTEGRATED SWITCH)-STEP-DOWN REGULATORS TI customers also evaluated this product.
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