Complete Power Solution for DDR or DDR2 Memory Applications
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This DDR reference design provides a VDDQ of 2.5V @ 6A and a VTT of 1.25V. The 2.5V sync buck converter achieves an efficiency of 92% while the 1.25V minimizes area by implementing a built-in LDO and has excellent tracking performance.

  • Complete power solution for DDR or DDR2 memory applications
  • High efficiency (92%) synchronous controller with integrated LDO
  • Adaptive on-time control for fast transient response
  • Supports all three sleep states, suspend to RAM, soft-off, suspend to disk

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Schematic/Block Diagram

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Test Data

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Design Files

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(Output Voltage 1)
(Output Voltage 2)
Vin (Min) (V)10.810.8
Vin (Max) (V)13.213.2
Vout (Nom) (V)2.51.25
Iout (Max) (A)63
Output Power (W)153.75
Input TypeDCDC
TopologyBuck- SynchronousLinear Regulator

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS51116  Complete DDR, DDR2, DDR3, DDR3L, LPDDR3 and DDR4 power solution synchronous buck controller, 3A LDO  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS51116 Download Download
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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1243 16 Sep 2013
Design files (3)
Title Type Size (KB) Date
ZIP 170 18 Sep 2013
PDF 109 16 Sep 2013
PDF 66 16 Sep 2013

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