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Home » NEWEST Products » New by Manufacturer » Exar » Exar XRP7724 Digital PWM/PFM Step Down Controller
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Exar XRP7724 Digital PWM/PFM Step Down Controller
Exar XRP7724 Digital PWM/PFM Step Down Controller

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Exar XRP7724 Digital PWM/PFM Step Down Controller

Exar XRP7724 Quad Channel Digital PWM (Pulse Width Modulator / PFM (Pulse Frequency Modulator) Step Down Controller is the world's lowest power consumption digital PWM / PFM device. XRP7724 is the first digital controller that can be considered for portable or other power-sensitive applications due to the significant reduction in operating current. Patented technology allows transient performance equivalent to the fastest comparator-based analog technologies, ensuring output capacitor size is kept to a minimum. This Exar step down controller includes three power switch IOs for driving load disconnect MOSFETs. XRP7724 is ready for the next generation of FPGAs and Processors using advanced energy management voltage control by providing output voltage resolution programming as fine as 2.5mV. Each output voltage can be programmed from 0.6V to 5.5V without the need for any external components.


Features
  • Four DPWM/DPFM switching buck controllers with internal FET drivers
    • Patented Over Sampling control
    • Patented DPFM technology with Ultrasonic mode
  • 4.75V to 5.5V or 5.5V to 25V input voltage range
  • Output voltages programmable from 0.6V to 5.5V
  • 5 GPIOs
    • 3 Load Switch I/Os (PSIO)
  • Fully programmable via SMBus (I²C)
  • Channel independent programmable switching frequency (1X, 2X, 4X)
  • Complete power monitoring and reporting
  • Fully configurable power up and power down sequencing
  • Full Fault Protection Features
  • Internal 5V 50mA standby LDO, with automatic 5V LDO bypass switch
  • Internal 3.3V 50mA standby LDO
  • Flash based non-volatile memory for configuration
  • Minimal External Components
  • PowerArchitect™ 5.0 Interactive Design Tool for easy configuration
Applications
  • Servers
  • Base Stations
  • Switches/Routers
  • Optical Line Cards
  • Broadcast Equipment
  • Ultrasound equipment
  • Industrial Control Systems
  • Automatic Test Equipment
  • Video Surveillance Systems
  • Video Conferencing Systems

Typical Application Circuit

Typical Application Circuit

Block Diagram

Block Diagram
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  • Exar
  • Semiconductors|Integrated Circuits|IC-Power Management