XRP7664

2A, 18V Synchronous Step-Down Converter
Data Sheets OBS (Obsolete)

Overview

Information 2A 18V Synchronous Step-Down Converter
# of Outputs 1
IOUT (A) 2
VIN MIN (V) 4.5
VIN MAX (V) 18
IQ (µA) 1000
VOUT MIN (V) 0.925
VOUT MAX (V) 16
Frequency (kHz) 340
Accuracy (%) 2.0
Efficiency (%) 95
Package SOIC-8
X x Y Package Dimension (mm) -
Control Mode Current Mode PWM
Special Features Enable, Over Current Protection, Thermal Shutdown, Soft Start Adjustable
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

All Types Data Sheets Application Notes Product Briefs & Brochures Symbols & Footprints User Guides & Manuals
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 R01 November 2024 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 PDN
XRP7664IDTR-F NSOIC8 OPT2 -40 85 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.

Packaging

Pkg Code Details Quantities Dimensions
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
07/17/2023 In 2023, MaxLinear will be converting all shipping labels for the parts noted from an EXAR format to MaxLinear’s label. During this transition customers may receive either label. This change affects only shipping and packing labels. This change will not affect the part number, part marking, manufacturing process or manufacturing sites. Only work in progress material will be converted. Existing inventory from MaxLinear’s warehouse, channel sales, distributor, and such, will not be converted. Hence, customers may experience receiving mixed shipments with both Exar and MaxLinear labels for some period until existing inventory of old labels is eventually cleared out. Situation is product to product with no predictable way to determine when all old labels will be exhausted. No change to product form, fit, function and reliability. ADDENDUM A: Fixed MBB label logo for DX204001 to MaxLinear logo. ADDENDUM B: Replaced ‘All other affected products outer box label’ with clearer pictures. Corrected Date Issued (from original PCN) issue date +90 days to August 30, 2023.
06/01/2023 In 2023, MaxLinear will be converting all shipping labels for the parts noted from an EXAR format to MaxLinear’s label. During this transition customers may receive either label. This change affects only shipping and packing labels. This change will not affect the part number, part marking, manufacturing process or manufacturing sites. Only work in progress material will be converted. Existing inventory from MaxLinear’s warehouse, channel sales, distributor, and such, will not be converted. Hence, customers may experience receiving mixed shipments with both Exar and MaxLinear labels for some period until existing inventory of old labels is eventually cleared out. Situation is product to product with no predictable way to determine when all old labels will be exhausted. No change to product form, fit, function and reliability.
06/01/2023 In 2023, MaxLinear will be converting all shipping labels for the parts noted from an EXAR format to MaxLinear’s label. During this transition customers may receive either label. This change affects only shipping and packing labels. This change will not affect the part number, part marking, manufacturing process or manufacturing sites. Only work in progress material will be converted. Existing inventory from MaxLinear’s warehouse, channel sales, distributor, and such, will not be converted. Hence, customers may experience receiving mixed shipments with both Exar and MaxLinear labels for some period until existing inventory of old labels is eventually cleared out. Situation is product to product with no predictable way to determine when all old labels will be exhausted. No change to product form, fit, function and reliability. ADDENDUM: Fixed MBB label logo for DX204001 to MaxLinear logo.
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

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For material content, environmental, quality and reliability questions review the Quality tab or visit our Quality page.
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The -F suffix indicates ROHS / Green compliance:
https://www.exar.com/quality-assurance-and-reliability/lead-free-program
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