XRP7664

2A, 18V Synchronous Step-Down Converter
Data Sheet NRND (Not Recommended for New Designs)

Overview

Information 2A 18V Synchronous Step-Down Converter
Package SOIC-8
IQ (µA) 1000
Special Features 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
VOUT MAX (V) 16
Frequency (kHz) 340
Efficiency (%) 95
Accuracy (%) 2.0
IOUT (A) 2
X x Y Package Dimension (mm) -
Control Mode Current Mode PWM
Operating Temperature (°C) -40 to 85
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The XRP7664 is a synchronous current mode PWM step-down (buck) regulator capable of a constant output current up to 2Amps. 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 XRP7664 reduces the overall component count and solution footprint. Current-mode control provides fast transient response and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current at turn-on, and in shutdown mode the supply current drops to 0.1uA.

Built-in output overvoltage (open load), over temperature, cycle-by-cycle over current and undervoltage lockout (UVLO) protections insure safe operations under abnormal operating conditions.

The XRP7664 is offered in a RoHS compliant, “green”/halogen free 8-pin SOIC package.

  • Pin/function compatible to MP1482
  • 2A continuous output current
  • 4.5V to 18V wide input voltage
  • PWM current mode control
    • 340kHz constant operations
    • Up to 95% efficiency
  • Adjustable output voltage
    • 0.925V to 16V range
    • 2% accuracy
  • Programmable soft-start and enable function
  • Built-in thermal, overcurrent, UVLO and output overvoltage protections
  • RoHS compliant, “green”/halogen free 8-pin SOIC package

  • Distributed power architectures
  • Point of Load (POL) converters
  • Audio video equipment
  • Medical and industrial equipment

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets XRP7664 2A 18V Synchronous Step-Down Converter 2.0.1 March 2013 1 MB
Application Notes AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian April 2019 1.2 MB
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 Flyers Power Management & Interface Products for Cable, Satellite and IP STB/Home Gateway March 2018 2 MB
Product Flyers 2A 18V Synchronous Step-Down Converter 1.0.0 November 2010 268.4 KB
Product Brochures Power Management Brochure October 2020 2.4 MB
Symbols & Footprints XRP7664IDTR-F CAD File (.bxl) September 2018 76 KB
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
XRP7664IDTR-F N Y Y Y Y L3 / 260ᵒC NSOIC8 OPT2

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
XRP7664IDTR-F NSOIC8 OPT2 -40 85 OBS XR76108ELTR-F
XRP7664EVB Board NRND
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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.

Packaging

Pkg Code Details Quantities Dimensions PDF
NSOIC8 OPT2
  • JEDEC Reference: MS-012
  • MSL Pb-Free: L3 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 128.4ºC/W (std); 96.8ºC/W (fused)
  • 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

Notifications

Distribution Date Description File
03/29/2022 Product Discontinuation Notice
02/15/2017 Qualification of alternate assembly subcon, ANST.
06/17/2013 Addition of an alternate qualified wafer foundry. Process change.
04/17/2013 Design & Datasheet Changes. Product Improvement and compatibility with industry equivalent devices.

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

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:
https://www.exar.com/quality-assurance-and-reliability/lead-free-program

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.