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

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 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 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.

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The -F suffix indicates ROHS / Green compliance:
https://www.exar.com/quality-assurance-and-reliability/lead-free-program