2A Bus Termination Voltage Regulator
Data Sheet


The XRP2997 is a Double Data Rate (DDR) termination voltage regulator supporting all power requirements of DDR I, II and III memories and is capable of sinking or sourcing 2A continuously.

Tightly regulating its output voltage within ±20mV, the XRP2997 converts input voltages as low as 1.1V while the output voltage is adjustable through an external resistor divider or by forcing the VREF pin voltage. It maintains a fast line and load transient response and only requires an output capacitance of 22µF to operate. An enable function via an external MOSFET and a soft-start feature allow for a controlled implementation of power-up sequencing.

Built-in source/sink overcurrent, over temperature and undervoltage lockout protections insure safe operation under abnormal operating conditions.


  • DDR1, DDR2 and DDR3 support
    • 0.75VTT generation
    • ±20mV output voltage offset
  • 2 Amps continuous current sourcing and sinking
    • 1.1V to 5.5V wide input voltage range
  • Adjustable output voltage
  • Suspend to RAM(STR), enable and soft-start functions
  • Stable with 22µF ceramic capacitor
  • UVLO, over temperature and overcurrent protections
  • Minimal external components
  • Pin/function compatible with Exar SP2996B
  • RoHS compliant "Green"/Halogen Free 8-pin SOIC (EP) package


  • DDR I/II/III memory termination
  • Active termination buses
  • Audio/video equipment
  • Video graphics cards

Design Tools

Symbols & Footprints


Pkg Code Details Quantities Dimensions PDF
  • JEDEC Reference: MS-012
  • MSL Pb-Free: L3 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 60ºC/W
  • Bulk Pack Style: n/a
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 2500
  • Quantity per Tube: n/a
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 12 x 8
  • Tape & Reel Unit Orientation: Pin 1 near sprocket hole
  • Dimensions: mm
  • Length: 4.90
  • Width: 3.90
  • Thickness: 1.75
  • Lead Pitch: 1.27

Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Buy Now Order Samples
XRP2997IDBTR-F HSOIC8 OPT1 -40 85 Active Order
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Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.

Quality & Environmental Data

Part Number RoHS | Exempt RoHS Halogen Free REACH MSL Rating / Peak Reflow Package

Click on the links above to download the Certificate of Non-Use of Hazardous Substances.

Additional Quality Documentation may be available, please Contact Support.
Distribution Date Description File
08/16/2012 Material change: Bond wire is changed from gold to copper. To update our manufacturing to be compatible with current industry standards and maintain capacity.


Search our list of FAQs for answers to common technical questions.
For material content, environmental, quality and reliability questions review the Quality tab or visit our Quality page.
For ordering information and general customer service visit our Contact Us page.

Frequently Asked Questions

The best way to determine this is to go to maxlinear.com and type the part into the search function. At or near the top of the results you should see something that looks like:

In this example, we looked for XRA1201. Click on part number header or on the link at the bottom of the result.  This brings you to the product page. For example:


Click on Parts & Purchasing, highlighted with the blue arrow above. The screen changes to:


Notice the status column and the “Show obsolete parts” link.  A legend tells you the definition of the different statuses. Click on the “Show obsolete parts” link to see EOL or OBS part numbers along with the Active part numbers, the legend still present:


Another method to find out if a part is OBS or EOL is to click on SUPPORT at the top:


And then Product Change Notifications:


Type the part into the search, and click on one of the part numbers from the drop down menu. Then you can look for the Product Discontinuation Notice, which generally is at the top of the list, for example:


If you see this, it tells you that this particular orderable part has been discontinued and when the last order date is, or was. If you click on the file, then you can view the notice we sent about this if you purchased the part in the recent past. It may also advise of a replacement part. When an orderable part first becomes discontinued, Product Discontinuation Notices are sent are sent to those who have purchased the parts in the recent past, if purchased directly, with a dated opportunity to place a last order.

The -F suffix indicates ROHS / Green compliance:

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