
Exar Corporation
GENERAL DESCRIPTION
The XRP7724 is a quad channel Digital Pulse Width Modulated (DPWM) Step down (buck) controller. A wide 4.75V to 5.5V and 5.5V to 25V input voltage dual range allows for single supply operation from standard power rails.
FEATURES
● Quad Channel Step-down Controller
― Digital PWM 105kHz-1.23MHz Operations
― Individual Channel Frequency Selection
― Patented digital PFM with Ultrasonic mode
― Patented Over Sampling Feedback
― Integrated MOSFET Drivers
― Programmable 5 coefficient PID control
● 4.75V to 25V Input Voltage
― 4.75V-5.5 and 5.5V-25V Input Ranges
― 0.6V to 5.5V Output voltage
● SMBus Compliant - I2C Interface
― Full Power Monitoring and Reporting
● 3 x 15V Capable PSIO + 2 x GPIOs
● Full Start/Stop Sequencing Support
● Built-in Thermal, Over-Current, UVLO
and Output Over-Voltage Protections
● On Board 5V and 3.3V Standby LDOs
● On Board Non-volatile Memory
● Supported by PowerArchitect™
APPLICATIONS
● Servers
● Base Stations
● Switches/Routers
● Broadcast Equipment
● Industrial Control Systems
● Automatic Test Equipment
● Video Surveillance Systems