Exar – XRP7720: Quad Output Universal Customizable PMIC with PFM

XRP7720: Quad Output Universal Customizable PMIC with PFM

The XRP7720 is a quad output universal customizable PMIC comprised of a quad channel Digital Pulse Width Modulated (DPWM) step down (buck) controller and 5V LDO. A wide 4.75V to 5.5V and 5.5V to 18V input voltage dual range allows for single supply operation from standard power rails. It is pin compatible to the popular XRP7724 and provides full flexibility during the development phase while offering a cost effective option for high volume production units. A selectable Digital Pulse Frequency Mode (DPFM) and low operating current result in better than 80% efficiency down to 10mA load provides support for portable and Energy Star compliant applications.


  • DPWM 105kHz to 1.23MHz operation
  • Individual channel frequency selection
  • Integrated MOSFET drivers
  • 4.75V to 18V input voltage
  • Full start/stop sequencing support
  • Supported by PowerArchitect™ 5.1
  • SMBus compliant I2C interface
  • Patented digital PFM with ultrasonic mode
  • Programmable 5 coefficient PID control
  • 3 x 15V capable PSIOs + 2 x GPIOs
  • Built-in thermal protection, OCP, UVLO and output OVP
  • 7 x 7mm TQFN44 package