TPS51200 Sink Source DDR Termination Regulator
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The TPS51200EVM evaluation board, HPA322A is designed to evaluate the performance and characteristics of TI's cost optimized DDR/DDR2/DDR3/LP DDR3 VTT termination regulator, the TPS51200. The TPS51200 is designed to provide proper termination voltage and a 10-mA buffered reference voltage for DDR memory which covered DDR (2.5 V/1.25 V), DDR2 (1.8 V/0.9 V), DDR3 (1.5 V/0.75 V), LP DDR3 (1.2 V/0.6 V) specifications with minimal external components.

  • Input Voltage: Support 2.5V Rail and 3.3V Rail
  • VLDOIN, VDDQ Voltage Range: 1.2V-2.5V
  • Build-in transient load switches (with both sinking and sourcing capability) to emulate the sink/source transient behavior which helps to evaluate the dynamic performance. For ease of use, both load step and timing of transient can be modified by on board resistors, and current information can also be monitored on board.
    • DDR: +/-1.67 A Sink/Source Transient Load
    • DDR2: +/-1.2 A Sink/Source Transient Load
    • DDR3: +/-1.0 A Sink/Source Transient Load
    • LP DDR3: +/-0.8 A Sink/Source Transient Load
  • Switcher S1 for enable function
  • Convenient test points for probing PGOOD, CLK_IN and loop response testing
  • 2-layer PCB with all the components on the bottom side

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TPS51200 Sink Source DDR Termination Regulator


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Technical documentation
Datasheet (2)
Title Type Size (KB) Date
PDF 2194 19 Mar 2020
PDF 2190 30 Nov 2016
User guides (1)
Title Type Size (KB) Date
PDF 383 28 May 2008
More literature (1)
Title Type Size (KB) Date
PDF 38 02 Jan 2019

TI Devices (5)

Part Number Name Product Family
CSD17305Q5A  30V, N ch NexFET MOSFET™, single SON5x6, 3.6mOhm  MOSFETs 
TPS51200  3A Sink/Source DDR Termination Regulator w/ VTTREF Buffered Reference for DDR2, DDR3, DDR3L and DDR4  Power management 
TPS51200-EP  Sink/Source DDR Termination Regulator  Power management 
TPS51200-Q1  Automotive Catalog Sink/Source DDR Termination Regulator  Power management 
TPS51200A-Q1  Sink and Source DDR Termination Regulator  Power management 

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