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TPS51116 Status:ACTIVE

DDR1, DDR2, DDR3 Switcher and LDO

      
         
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Datasheet

Download - PDF Icon
  • Complete DDR, DDR2 and DDR3 Memory Power Solution Synch Buck Controller (Rev. G) (tps51116.pdf, 1109 KB)
    18 Jun 2008 Download

 TPS51116
TopologyBuck  
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  
RatingCatalog  
 Samples
 Inventory

Customers Who Evaluated This Product Also Evaluated

  • TPS40193: 4.5V to 18V Input, Low Pin Count Synchronous Buck Controller with Power Good
  • TPS51124: Dual, Synchronous Step Down Controller for Low Voltage System Power
  • TPS3803-01: Single Voltage Detector
  • BQ2060A: Multi-Chemistry SBS 1.1 Compliant Gas Gauge With 5 LED Drivers, Additional Battery Mgmt Control
  • TPS79301: Single Output LDO, 200mA, Adj.(1.2 to 5.5V), High PSRR, Low Noise

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 Memory Power Supplies
    • SSTL-2 SSTL-18 and HSTL Termination

D-CAP, PowerPAD are trademarks of Texas Instruments.

Description

The TPS51116 provides a complete power supply for DDR/SSTL-2, DDR2/SSTL-18, and DDR3 memory systems. It integrates a synchronous buck contoller 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 uns fixed 400kHz pseudo-constant frequency PWM with an adaptive on-timecontrol 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 x 10 mF) 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" QFN.

    

Pricing / Packaging / CAD Design Tools / Samples

Price ($US)PackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price ($US) | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsSamples
TPS51116PWPACTIVE-40 to 852.25 | 100uHTSSOP (PWP) | 20 View 70 | TUBE Download CAD Format for this Symbol
TPS51116PWPG4ACTIVE-40 to 852.25 | 100uHTSSOP (PWP) | 20 View 70 | TUBE Download CAD Format for this Symbol
TPS51116PWPRACTIVE-40 to 852.25 | 100uHTSSOP (PWP) | 20 View 2000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS51116PWPRG4ACTIVE-40 to 852.25 | 100uHTSSOP (PWP) | 20 View 2000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS51116RGERACTIVE-40 to 852.25 | 100uVQFN (RGE) | 24 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS51116RGERG4ACTIVE-40 to 852.25 | 100uVQFN (RGE) | 24 View 3000 | LARGE T&R Download CAD Format for this SymbolPurchase Samples
TPS51116RGETACTIVE-40 to 852.50 | 100uVQFN (RGE) | 24 View 250 | SMALL T&R Download CAD Format for this Symbol
TPS51116RGETG4ACTIVE-40 to 852.50 | 100uVQFN (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

  TI Inventory Status Reported Distributor Inventory
TPS51116PWPAs of 7:54 AM GMT, 29 Aug 2008As of 7:54 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 1436 | 27 Oct 6 Weeks AmericasAvnet 440
 27 | 28 Oct Newark 45
 420 | 4 Nov EuropeArrow Southern Europe 70
 9 | 10 Nov Avnet-SILICA 140
 >10k | 25 Nov Spoerle 70
TPS51116PWPG4As of 7:54 AM GMT, 29 Aug 2008As of 7:54 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 1436 | 27 Oct 6 Weeks AmericasAvnet 67
 27 | 28 Oct Mouser Electronics 134
 420 | 4 Nov Rochester Electronics 70
 9 | 10 Nov     
 >10k | 25 Nov     
TPS51116PWPRAs of 7:54 AM GMT, 29 Aug 2008As of 7:54 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 24 Nov 12 Weeks AmericasAvnet >1k
TPS51116PWPRG4As of 7:54 AM GMT, 29 Aug 2008As of 7:54 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 24 Nov 12 Weeks AmericasRochester Electronics >1k
TPS51116RGERAs of 7:54 AM GMT, 29 Aug 2008As of 7:54 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 17 Nov 12 Weeks AsiaWPI >1k
TPS51116RGERG4As of 7:54 AM GMT, 29 Aug 2008As of 7:54 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 17 Nov 12 Weeks None Reported
View Distributors		   
TPS51116RGETAs of 7:54 AM GMT, 29 Aug 2008As of 7:54 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1500* >10k | 4 Nov 6 Weeks AmericasDigiKey 173
  Mouser Electronics 213
  Newark 169
  Rochester Electronics 201
  AsiaWPI 61
TPS51116RGETG4As of 7:54 AM GMT, 29 Aug 2008As of 7:54 AM GMT, 29 Aug 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 1500* >10k | 4 Nov 6 Weeks None Reported
View Distributors		   
View all Distributors  

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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

Datasheets

  • Complete DDR, DDR2 and DDR3 Memory Power Solution Synch Buck Controller (Rev. G) (tps51116.pdf, 1109 KB)
    18 Jun 2008 Download

Application Notes

  • Cyclone™ III FPGA Starter Kit Power Reference Design (slva298.htm, 8 KB)
    27 Mar 2008 Abstract
  • DDR2 Power Solutions for Notebooks (slua316.htm, 8 KB)
    24 May 2004 Abstract

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

User Guides

  • Using the TPS51116 (sluu202.pdf, 558 KB)
    13 Jul 2004 Download

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

More Literature

  • Notebook Computer Solutions Guide (slyy016.pdf, 956 KB)
    01 Aug 2006 Download
  • Reference Design Cookbook 2 - Power Management (slub012.pdf, 3733 KB)
    27 Feb 2006 Download

Tools & Software

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

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