3A Synchronous Step-Down Regulator
Data Sheet NRND (Not Recommended for New Designs)


Information 3A Synchronous Step-Down Regulator
Package DFN-10
IQ (µA) 460
Special Features Enable, Over Current Protection, Power Good, Synchronous Rectification, Thermal Shutdown, UVLO, Soft Start Built-in, 100% Duty Cycle
VIN MIN (V) 2.6
VIN MAX (V) 5.5
# of Outputs 1
VOUT MIN (V) 0.8
Frequency (kHz) 300-2500
Efficiency (%) 95
Accuracy (%) <2.0
IOUT (A) 3
X x Y Package Dimension (mm) -
Control Mode Current Mode PWM
Operating Temperature (°C) -40 to 125
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The XRP6670 is a synchronous current mode PWM step-down (buck) regulator capable of delivering up to 3Amps of current. A 2.6V to 5.5V input voltage range allows for single supply operation from industry standard 3.3V and 5V power rails.

Based on a current mode PWM control scheme, the XRP6670 operating frequency is programmable between 300kHz and 2.5MHz via an external resistor. This flexibility allows the XRP6670 to optimize component selection and reduce component count and solution footprint. It provides a low output voltage ripple, excellent line and load regulation and has a 100% duty cycle LDO mode. Output voltage is adjustable to as low as 0.8V with a better than 2% accuracy while a low quiescent current supports the most stringent battery operating conditions.

Built-in over temperature, overcurrent, short-circuit and undervoltage lock-out protections insure safe operations under abnormal operating conditions.

The XRP6670 is offered in a RoHS compliant, "green"/halogen free 3mm x 3mm 10-pin DFN package.

  • Guaranteed 3A output current
    • Input voltage: 2.6V to 5.5V
    • Prog. PWM current mode control
    • Programmable 300kHz to 2.5MHz
    • 100% duty cycle LDO mode operation
    • Achieves 95% efficiency
  • Adjustable output voltage range
    • 0.8V to 5V with ±2% accuracy
  • Enable and power good functions
  • 460µA quiescent current
  • Over temperature, overcurrent, short-circuit and UVLO protections
  • RoHS compliant "green"/halogen free 3mm x 3mm 10-pin DFN package

  • Industrial and medical equipment
  • Audio video equipment
  • Networking and telecom equipment
  • Portable/battery operated equipment

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets XRP6670 3A 300kHz-2.5MHz Synchronous Step Down Regulator 1.0.2 February 2020 1 MB
User Guides & Manuals XRP6670 Evaluation Board Manual 1.0.1 May 2013 1 MB
Product Flyers Power Management & Interface Products for Cable, Satellite and IP STB/Home Gateway March 2018 2 MB
Product Brochures Power Management Brochure October 2020 2.4 MB
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
XRP6670EHTR-F N Y Y Y Y L1 / 260ᵒC TDFN10 3x3 OPT1

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

Additional Quality Documentation may be available, please Contact Support.

Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Suggested Replacement Buy Now PDN
XRP6670EHTR-F TDFN10 3x3 OPT1 -40 125 OBS
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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.


Pkg Code Details Quantities Dimensions PDF
TDFN10 3x3 OPT1
  • JEDEC Reference: MO-229
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 40.5ºC/W
  • Bulk Pack Style: Canister
  • Quantity per Bulk Pack: n/a
  • Quantity per Reel: 3000
  • 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: Quadrant 1
  • Dimensions: mm
  • Length: 3.00
  • Width: 3.00
  • Thickness: 0.8
  • Lead Pitch: 0.50


Distribution Date Description File
03/29/2022 Product Discontinuation Notice

FAQs & Support

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.
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Submit a Technical Support Question As a New Question

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.

Find the product page of the part that you want to get an evaluation board for and click on Parts & Purchasing. Example:


Find the icons under Buy Now or Order Samples:


Click on the Buy Now icon and see who has stock and click on the Buy button:


Alternatively, you can click on the Order Samples


If the icons are missing, then contact Customer Support.

The -F suffix indicates ROHS / Green compliance: