TPS51200-EP Sink/Source DDR Termination Regulator |

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Sink/Source DDR Termination Regulator



The TPS51200-EP device is a sink and source double data rate (DDR) termination regulator specifically designed for low-input voltage, low-cost, low-noise systems where space is a key consideration.

The TPS51200-EP maintains a fast transient response and only requires a minimum output capacitance of 20 µF. The TPS51200-EP supports a remote sensing function and all power requirements for DDR, DDR2, DDR3, Low-Power DDR3, and DDR4 VTT bus termination.

In addition, the TPS51200-EP provides an open-drain PGOOD signal to monitor the output regulation and an EN signal that can be used to discharge VTT during S3 (suspend to RAM) for DDR applications.

The TPS51200-EP is available in the thermally efficient 10-pin VSON thermal pad package, and is rated both Green and Pb-free. It is specified from –55°C to +125°C.


  • Input Voltage: Supports 2.5-V Rail and 3.3-V Rail
  • VLDOIN Voltage Range: 1.1 V to 3.5 V
  • Sink and Source Termination Regulator Includes
    Droop Compensation
  • Requires Minimum Output Capacitance of 20-µF
    (Typically 3 × 10-µF MLCCs) for Memory
    Termination Applications (DDR)
  • PGOOD to Monitor Output Regulation
  • EN Input
  • REFIN Input Allows for Flexible Input Tracking
    Either Directly or Through Resistor Divider
  • Remote Sensing (VOSNS)
  • ±10-mA Buffered Reference (REFOUT)
  • Built-in Soft Start, UVLO, and OCL
  • Thermal Shutdown
  • Meets DDR and DDR2 JEDEC Specifications
  • Supports DDR3, Low-Power DDR3, and DDR4
    VTT Applications
  • 10-Pin VSON Package With Thermal Pad
  • Supports Defense, Aerospace, and Medical
    • Controlled Baseline
    • One Assembly and Test Site
    • One Fabrication Site
    • Available in Military (–55°C to 125°C)
      Temperature Range
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability


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Part number Order DDR memory type Control mode Iout VTT (Max) (A) Iq (Typ) (mA) Output Vin (Min) (V) Vin (Max) (V) Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
TPS51200-EP Order now DDR
3     0.5     VREF
1.1     3.5     Complete Solution     HiRel Enhanced Product     -55 to 125     VSON | 10     10VSON: 9 mm2: 3 x 3 (VSON | 10)