Analog DDR Solutions for your complete System

Texas Instruments' broad portfolio of Power Management and Memory Interface products provide efficient, high density, cost effective solutions for designs using any variation of DDR. Whether designing mobile or embedded computing applications using DDR, DDR4 or any variation in-between, TI has the essential resources needed for designing your complete system.

TI's portfolio of Power Management solutions for DDR SDRAM offer innovative, efficient and affordable solutions for your specific DDR design.

Click on the generation of DDR you are designing with and choose your Power Management solution!

  • DDR
  • DDR2
  • LP DDR2
  • DDR3
  • DDR3L
  • LP DDR3
  • DDR4
 

DDR Power Management Solutions

  VDDQ VTT VTTREF Input Voltage (V) (IC Bias Voltage) Package Part Number Description  
All-in-one Solution (2.5V) (1.25V) (1.25V) 3 to 28 24VQFN TPS59116 Complete DDR, DDR2, and DDR3 Memory Power Solution, Sync Buck Controller for Embedded Computing
Multiple IC Solution (select multiple devices) (2.5V) - - 4.5 to 17 14QFN TPS54320 3A Synchronous Step Down Converter
(2.5V) - - 4.5 to 17 14QFN,
14VQFN
TPS54620 6A Synchronous Step-Down Converter
(2.5V) - - 4.5 to 17 15VQFN TPS54020 10A, Synchronous, Step-down Converter
(2.5V) - - 4.5 to 14 2x2 SON TPS56121 15A, Synchronous, Step-down Converter
(2.5V)     4.5 to 14 14QFN,
14VQFN
TPS56221 25A High Current Synchronous Step-Down Converter
- (1.25V) (1.25V) 2.2 to 5.5 SOIC-8,
4x4 QFN
LP2995 1.5A Source/Sink Regulator
- (1.25V) (1.25V) 1.2 to 3.6
(4.75 to 5.25)
MSOP-10 TPS51100 3A Source/Sink Regulator, requires 5V bias

DDR2 Power Management Solutions

  VDDQ VTT VTTREF Input Voltage (V) (IC Bias Voltage) Package Part Number Description  
All-in-one Solution (1.8V) (0.9V) (0.9V) 3 to 28 24VQFN   TPS59116 Complete DDR, DDR2, and DDR3 Memory Power Solution, Sync Buck Controller for Embedded Computing
(1.8V) (0.9V) (0.9V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51216 Synchronous Step-down Controller (D-CAP™) plus 2A Source/Sink Regulator
(1.8V) (0.9V) (0.9V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51716 Synchronous Step-down Controller (D-CAP2™) plus 2A Source/Sink Regulator
(1.8V) (0.9V) (0.9V) 3 to 28
(4.5 to 5.5)
3x3 QFN TPS51916 Synchronous Step-down Controller (D-CAP/D-CAP2 selectable), plus 3A Source/Sink Regulator
Multiple IC Solution (select multiple devices) (1.8V) - - 4.5 to 17 14QFN TPS54320 3A Synchronous Step Down Converter
(1.8V) - - 4.5 to 17 14QFN,
14VQFN
TPS54620 6A Synchronous Step-Down Converter
(1.8V) - - 4.5 to 17 15VQFN   TPS54020 10A, Synchronous, Step-down Converter
(1.8V) - - 4.5 to 14 22SON   TPS56121 15A, Synchronous, Step-down Converter
(1.8V) - - 4.5 to 14 14QFN,
14VQFN
TPS56221 25A High Current Synchronous Step-Down Converter
- (0.9V) (0.9V) 1.2 to 3.6
(4.75 to 5.25)
MSOP-10 TPS51100 3A Source/Sink Regulator, requires 5V bias
- (0.9V) (0.9V) (VTT + 0.4) to 3.5
(3.1 to 6.5)
2x2 SON   TPS51206 2A Source/Sink Regulator
- (0.9V) (0.9V) 2.2 to 5.5 SOIC-8,
4x4 QFN
LP2996 1.5A Source/Sink Regulator
- (0.9V) (0.9V) 2.2 to 5.5 SOIC-8 LP2997 0.5A Source/Sink Regulator (DDR2 only)
- (0.9V) (0.9V) 2.2 to 5.5 SOIC-8 LP2998 0.5A Source/Sink Regulator (DDR3 support)

LP DDR2 Power Management Solutions

  VDDQ VTT VTTREF Input Voltage (V) (IC Bias Voltage) Package Part Number Description  
All-in-one Solution (except VPP) (1.2V) (0.6V) (0.6V) 3 to 28
(4.75 to 5.25)
HTSSOP-20,
4x4 QFN  
TPS51116 Synchronous Step-down Controllerplus 3A Source/Sink Regulator
(1.2V) (0.6V) (0.6V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51216 Synchronous Step-down Controller (D-CAP™) plus 2A Source/Sink Regulator
(1.2V) (0.6V) (0.6V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51716 Synchronous Step-down Controller (D-CAP2™) plus 2A Source/Sink Regulator
(1.2V) (0.6V) (0.6V) 3 to 28
(4.5 to 5.5)
3x3 QFN TPS51916 Synchronous Step-down Controller (D-CAP/D-CAP2 selectable), plus 3A Source/Sink Regulator
Multiple IC Solution (select multiple devices) (1.2V) - - 4.5 to 17 14QFN TPS54320 3A Synchronous Step Down Converter
(1.2V) - - 4.5 to 17 14QFN,
14VQFN
TPS54620 6A Synchronous Step-Down Converter
(1.2V) - - 4.5 to 17 15VQFN   TPS54020 10A, Synchronous, Step-down Converter
(1.2V) - - 4.5 to 14 2x2 SON   TPS56121 15A, Synchronous, Step-down Converter
(1.2V) - - 4.5 to 14 14QFN,
14VQFN
TPS56221 25A High Current Synchronous Step-Down Converter
- (0.6V) (0.6V) 1.2 to 3.5
(2.375 to 3.5)
3x3 SON   TPS51200 2A Source/Sink Regulator, suitable for servers
- (0.6V) (0.6V) (VTT + 0.4) to 3.5
(3.1 to 6.5)
2x2 SON   TPS51206 2A Source/Sink Regulator
  (0.6V) - 1 to 6
(4.5 to 6.5)
3.5x4 QFN   TPS53317 6A Synchronous, Step-down Converter, suitable for servers

DDR3 Power Management Solutions

  VDDQ VTT VTTREF Input Voltage (V) (IC Bias Voltage) Package Part Number Description  
All-in-one Solution (1.5V) (0.75V) (0.75V) 3 to 28 24VQFN   TPS59116 Complete DDR, DDR2, and DDR3 Memory Power Solution, Sync Buck Controller for Embedded Computing
(1.5V) (0.75V) (0.75V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51216 Synchronous Step-down Controller (D-CAP™) plus 2A Source/Sink Regulator
(1.5V) (0.75V) (0.75V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51716 Synchronous Step-down Controller (D-CAP2™) plus 2A Source/Sink Regulator
(1.5V) (0.75V) (0.75V) 3 to 28
(4.5 to 5.5)
3x3 QFN TPS51916 Synchronous Step-down Controller (D-CAP/D-CAP2 selectable), plus 3A Source/Sink Regulator
Multiple IC Solution (select multiple devices) (1.5V) - - 4.5 to 17 14QFN TPS54320 3A Synchronous Step Down Converter
(1.5V) - - 4.5 to 17 14QFN,
14VQFN
TPS54620 6A Synchronous Step-Down Converter
(1.5V) - - 4.5 to 17 15VQFN   TPS54020 10A, Synchronous, Step-down Converter
(1.5V) - - 4.5 to 14 2x2 SON   TPS56121 15A, Synchronous, Step-down Converter
(1.5V) - - 4.5 to 14 14QFN,
14VQFN
TPS56221 25A High Current Synchronous Step-Down Converter
- (0.75V) (0.75V) 2.2 to 5.5 SOIC-8 LP2998 0.5A Source/Sink Regulator (DDR3 support)
- (0.75V) (0.75V) 1.1 to 3.5
(2.375 to 3.5)
3x3 SON   TPS51200 2A Source/Sink Regulator, suitable for servers
- (0.75V) (0.75V) (VTT + 0.4) to 3.5
(3.1 to 6.5)
2x2 SON TPS51206 2A Source/Sink Regulator
- (0.75V) (0.75V)   MSOP-10 TPS51100 3A Source/Sink Regulator, requires 5V bias
- (0.75V) - 1 to 6
(4.5 to 6.5)
3.5x4 QFN   TPS53317 6A Synchronous, Step-down Converter, suitable for servers
- (0.75V) - 1 to 16
(3 to 6)
TSSOP-14   LM2744 Synchronous Step-down Controller, suitable for servers

DDR3L Power Management Solutions

  VDDQ VTT VTTREF Input Voltage (V) (IC Bias Voltage) Package Part Number Description  
All-in-one Solution (1.35V) (0.675V) (0.675V) 3 to 28 24VQFN   TPS59116 Complete DDR, DDR2, and DDR3 Memory Power Solution, Sync Buck Controller for Embedded Computing
(1.35V) (0.675V) (0.675V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51216 Synchronous Step-down Controller (D-CAP™) plus 2A Source/Sink Regulator
(1.35V) (0.675V) (0.675V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51716 Synchronous Step-down Controller (D-CAP2™) plus 2A Source/Sink Regulator
(1.35V) (0.675V) (0.675V) 3 to 28
(4.5 to 5.5)
3x3 QFN TPS51916 Synchronous Step-down Controller (D-CAP/D-CAP2 selectable), plus 3A Source/Sink Regulator
Multiple IC Solution (select multiple devices) (1.35V) - - 4.5 to 17 14QFN TPS54320 3A Synchronous Step Down Converter
(1.35V) - - 4.5 to 17 14QFN,
14VQFN
TPS54620 6A Synchronous Step-Down Converter
(1.35V) - - 4.5 to 17 15VQFN   TPS54020 10A, Synchronous, Step-down Converter
(1.35V) - - 4.5 to 14 2x2 SON   TPS56121 15A, Synchronous, Step-down Converter
(1.35V) - - 4.5 to 14 14QFN,
14VQFN
TPS56221 25A High Current Synchronous Step-Down Converter
- (0.675V) (0.675V) 1.1 to 3.5
(2.375 to 3.5)
3x3 SON TPS51200 2A Source/Sink Regulator, suitable for servers
- (0.675V) (0.675V) (VTT + 0.4) to 3.5
(3.1 to 6.5)
2x2 SON   TPS51206 2A Source/Sink Regulator
- (0.675V) - 1 to 6
(4.5 to 6.5)
3.5x4 QFN TPS53317 6A Synchronous, Step-down Converter, suitable for servers

LP DDR3 Power Management Solutions

  VDDQ VTT VTTREF Input Voltage (V) (IC Bias Voltage) Package Part Number Description  
All-in-one Solution (except VPP) (1.2V) (0.6V) (0.6V) 3 to 28
(4.75 to 5.5)
HTSSOP-20,
4x4 QFN
TPS51116 Synchronous Step-down Controller plus 3A Source/Sink Regulator
(1.2V) (0.6V) (0.6V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51216 Synchronous Step-down Controller (D-CAP™) plus 2A Source/Sink Regulator
(1.2V) (0.6V) (0.6V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51716 Synchronous Step-down Controller (D-CAP2™) plus 2A Source/Sink Regulator
(1.2V) (0.6V) (0.6V) 3 to 28
(4.5 to 5.5)
3x3 QFN TPS51916 Synchronous Step-down Controller (D-CAP/D-CAP2 selectable), plus 3A Source/Sink Regulator
Multiple IC Solution (select multiple devices) (1.2V) - - 4.5 to 17 14QFN TPS54320 3A Synchronous Step Down Converter
(1.2V) - - 4.5 to 17 14QFN,
14VQFN
TPS54620 6A Synchronous Step-Down Converter
(1.2V) - - 4.5 to 17 15VQFN   TPS54020 10A, Synchronous, Step-down Converter
(1.2V) - - 4.5 to 14 22SON   TPS56121 15A, Synchronous, Step-down Converter
(1.2V) - - 4.5 to 14 14QFN,
14VQFN
TPS56221 25A High Current Synchronous Step-Down Converter
- (0.6V) (0.6V) 1.1 to 3.5
(2.375 to 3.5)
3x3 SON TPS51200 2A Source/Sink Regulator, suitable for servers
- (0.6V) (0.6V) (VTT + 0.4) to 3.5
(3.1 to 6.5)
2x2 SON   TPS51206 2A Source/Sink Regulator
  (0.6V) - 1 to 6
(4.5 to 6.5)
3.5x4 QFN TPS53317 6A Synchronous, Step-down Converter, suitable for servers

DDR4 Power Management Solutions

  VDDQ VTT VTTREF Input Voltage (V) (IC Bias Voltage) Package Part Number Description  
All-in-one Solution (1.2V) (0.6V) (0.6V) 3 to 28
(4.75 to 5.25)
HTSSOP-20,
4x4 QFN  
TPS51116 Synchronous Step-down Controller plus 3A Source/Sink Regulator
(1.2V) (0.6V) (0.6V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51216 Synchronous Step-down Controller (D-CAP™) plus 2A Source/Sink Regulator
(1.2V) (0.6V) (0.6V) 3 to 28
(4.5 to 5.5)
3x3 QFN   TPS51716 Synchronous Step-down Controller (D-CAP2™) plus 2A Source/Sink Regulator
(1.2V) (0.6V) (0.6V) 3 to 28
(4.5 to 5.5)
3x3 QFN TPS51916 Synchronous Step-down Controller (D-CAP/D-CAP2 selectable), plus 3A Source/Sink Regulator
Multiple IC Solution (select multiple devices) (1.2V) - - 4.5 to 17 14QFN TPS54320 3A Synchronous Step Down Converter
(1.2V) - - 4.5 to 17 14QFN,
14VQFN
TPS54620 6A Synchronous Step-Down Converter
(1.2V) - - 4.5 to 17 15VQFN   TPS54020 10A, Synchronous, Step-down Converter
(1.2V) - - 4.5 to 14 22SON   TPS56121 15A, Synchronous, Step-down Converter
(1.2V) - - 4.5 to 14 14QFN,
14VQFN
TPS56221 25A High Current Synchronous Step-Down Converter
- (0.6V) (0.6V) 1.1 to 3.5
(2.375 to 3.5)
MSOP-10 TPS51200 2A Source/Sink Regulator, suitable for servers
- (0.6V) (0.6V) (VTT + 0.4) to 3.5
(3.1 to 6.5)
22SON   TPS51206 2A Source/Sink Regulator
  (0.6V) - 1 to 6
(4.5 to 6.5)
SOIC-8,
4x4 QFN
TPS53317 6A Synchronous, Step-down Converter, suitable for servers

Power Rail

VDDQ

VTT

VTTREF

Description

Main power supply to the memory device

½ VDDQ: Termination voltage for command/address/data lines

½ VDDQ: Reference voltage for logic pins

TI's portfolio of Memory Interface solutions for DDR SDRAM offer innovative, efficient and affordable solutions for your specific DDR design.

Click on the generation of DDR you are designing with and choose your Memory Interface solution!

Interface

  • DDR
  • DDR2
  • DDR3
  • DDR4

Switches

  • DDR2
  • DDR3
  • DDR4
 

DDR Interface Solutions

Part # Outputs Frequency Jitter Configuration Prop Delay Models  
CDCVF855 5 220 MHz ±30ps - - -
CDCVF857 10 220 MHz ±30ps - - IBIS
SN74SSTVF16857 14 - - 1:1 14-bit 2.6ns IBIS and HSPICE
SN74SSTVF16859 26 - - 1:2 13-bit 2.5ns IBIS and HSPICE
SN74SSTVF32852 48 - - 1:2 24-bit 2.6ns IBIS and HSPICE

DDR2 Interface Solutions

Part # Outputs Frequency Jitter Configuration Prop Delay Models  
CDCUA877 10 410MHz ±20ps - - IBIS
CDCU2A877 10 220 MH410MHzz ±20ps - - IBIS
SN74SSTUB32866 25 - - 1:1 25-bit
1:2 14-bit
1ns IBIS and HSPICE
74SSTUB32868A 56 - - 1:2 28-bit 1ns IBIS

DDR3 Interface Solutions

Part # Outputs Frequency Jitter Configuration Prop Delay Models  
SN74SSQEC32882 52 1866MHz ±20ps 1:1 52-bit
1:2 26-bit
1ns IBIS (under request)

DDR4 Interface Solutions

Part # Outputs Frequency Jitter Configuration Prop Delay Models  
CAB4A 64 2400MHz ±20ps 1:2 32-bit 1ns IBIS (under request)

DDR2 Switch Solutions

Part # VCC Icc BW Configuration Prop Delay  
TS2DDR2811 3 V to 3.6 V 250 µA 1 GHz 1:1 8 bit 40 ps

DDR3 Switch Solutions

Part # VCC Icc BW Configuration Prop Delay  
TS3DDR3812 3 V to 3.6 V 550 µA 1.9 GHz 1:2 12 bit 60 ps
TS3DDR3642 3 V - 3.6 V 80 µA 4.5 GHz 1:2 12 bit 40 ps

DDR4 Switch Solutions

Part # VCC Icc BW Configuration Prop Delay  
TS3DDR3642 3 V - 3.6 V 80 µA 4.5 GHz 1:2 12 bit 40 ps

TI's Analog DDR Solutions are supported through an array of technical resources, design tools and direct customer support.

Online Tools

The PowerLab™ Reference Design Library, includes fully tested and working designs to help accelerate your next project.

 

WEBENCH Designer is a powerful software algorithm with visual interfaces that deliver complete applications in seconds.

Videos

Power Tip 41: Powering double data rate (DDR) Memory DDR Memory Termination and Power Supplies Solutions
 

Technical Documents

Power and Memory Interface Solutions for Micron - Selection Guide Application Examples for CDCUx877x PLL family - Application Report Recommendation for Register-Related SPD Settings on DDR3-RDIMM - Application Report How to Power your DRM Memory and SSTL - Article Technical Support Forum