3A, 18V PFM/PWM Step-Down Regulator
OBS (Obsolete)
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Information 3A 18V PFM/PWM Step-Down Regulator
Package HSOIC-8
IQ (µA) 1200
Special Features Light Load PFM, Enable, Over Current Protection, Thermal Shutdown, Soft Start Adjustable
VIN MIN (V) 4.5
VIN MAX (V) 18
# of Outputs 1
VOUT MIN (V) 0.925
Frequency (kHz) 340
Efficiency (%) 95
Accuracy (%) 2.0
IOUT (A) 3
X x Y Package Dimension (mm) -
Control Mode Current Mode PWM
Operating Temperature (°C) -40 to 85
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The XRP7675 is a 3A capable synchronous current-mode PWM step-down (buck) voltage regulator with improved light current load efficiency. A wide 4.5V to 18V input voltage range allows for single supply operations from industry standard 5V and 12V power rails.

With a 340kHz constant operating frequency and integrated high and low-side 100mΩ/100mΩ MOSFETs, the XRP7675 reduces the overall component count and solution footprint. Current-mode control provides fast transient response and cycle-by-cycle OCP. An adjustable soft-start prevents inrush current at turn-on, and in shutdown mode the supply current drops to 0.1µA. At light current loads, the XRP7675 operates in Discontinuous Conduction Mode (DCM) and is complemented by a Pulse Frequency Modulation (PFM) mode to provide excellent conversion efficiency.

Built-in output overvoltage (open load), over temperature, cycle-by-cycle over-current, undervoltage lockout (UVLO) and hiccup mode short-circuit protection insures safe operation under abnormal operating conditions.

The XRP7675 is offered in a RoHS compliant, "green"/halogen free 8-pin exposed pad SOIC package.

  • 3A continuous output current
  • 4.5V to 18V wide input voltage
    • 0.925V to 16V adjustable output voltage
    • 2% accuracy
  • PWM current mode control
    • 340kHz constant operations
    • Up to 95% efficiency
  • Light load efficiency
  • Programmable soft-start and enable function
  • Built-in thermal, overcurrent, UVLO and output overvoltage protections
  • Pin/function upgrade to Exar XRP7665 and MPS MP1484/2307
  • RoHS compliant, "green"/halogen free 8-pin SOIC package

  • Distributed power architecture
  • Energy Star compliant equipment
  • Portable equipment
  • Point of Load (POL) converter
  • Audio video equipment

Documentation & Design Tools

Type Title Version Date File Size
Application Notes ANP-40, Current Mode Compensation 1.0.0 April 2013 712.2 KB
Application Notes ANP-40, Current Mode Compensation - Supporting Spreadsheet 1.0.0 April 2013 81.6 KB
User Guides & Manuals XRP7664-65-74-75 Evaluation Board Manual 2.0.0 August 2014 808.2 KB
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

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 Notes Status Suggested Replacement PDN
XRP7675IDBTR-F HSOIC8 OPT2 -40 85 Input caps, inductor and output caps can remain the same. Package size is same as SO-8. OBS XR76108ELTR-F
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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
  • JEDEC Reference:
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic:
  • ThetaJA: 60ºC/W
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: 98
  • Quantity per Reel: 2500
  • Quantity per Tube: 98
  • 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: 4.9
  • Width: 3.9
  • Thickness: 1.75
  • Lead Pitch: 1.27


Distribution Date Description File
03/29/2022 Product Discontinuation Notice
10/10/2017 Reactivation of previously announced discontinued product.
07/11/2017 Product Discontinuation Notification

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.
For ordering information and general customer service visit our Contact Us page.

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.

The -F suffix indicates ROHS / Green compliance: