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Home » NEWEST Products » New by Manufacturer » Exar » Exar XRP7665 Step-Down Converters
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Exar XRP7665 Step-Down PowerBlox Converters

Exar XRP7665 Step-Down PowerBlox™ Step-Down Converters are optimized for 12V input voltage rail and also capable of operating from a 5V rail, addressing the needs for smaller footprint and substantial savings in cost-sensitive applications. These Exar step-down converters have a maximum load current of 3A and operating input voltage of up to 18V. They operate in at a fixed 340 kHz switching frequency and can reach up to 93% efficiency in a compact "green" SOIC package. Design flexibility of any point-of-load supply with the XRP7665 is further enhanced with the availability of a dedicated enable function and programmable soft start. Built-in current limit, output over voltage and thermal shutdown protection provide the XRP7665 with fail-safe operations. These Exar step-down converters are ideal for use in audio-video equipment such as set-top boxes, telecom, computing peripherals and more generally distributed point-of-load conversions.

  • Pin/Function Compatible to MP1484
  • 3A Continuous Output Current
  • 4.75V to 18V Wide Input Voltage
  • PWM Current Mode Control
    • 340kHz Constant Operations
    • Up to 93% Efficiency
  • Adjustable Output Voltage
    • 0.925V to 16V Range
    • 2.7% Accuracy
  • Programmable Soft-Start and Enable Function
  • Built-in Thermal, Over Current, UVLO and Output Over Voltage Protections
  • Pin Compatible Upgrade to XRP7664
  • RoHS Compliant, "Green"/Halogen Free 8-Pin SOIC Package
  • Distributed Power Architectures
  • Point of Load Converters
  • Audio-Video Equipments
  • Medical & Industrial Equipments
Block Diagram
Block Diagram

Application Circuit

Application Circuit
  • Exar
  • Power Management
  • Semiconductors|Integrated Circuits|IC-Power Management