#XRP7724EVB-DEMO-1 Quad-Output Digital PWM Buck Controller
The XRP7724 is a breakthrough Digital Pulse Width Modulated (DPWM) four output buck controller. The XRP7724 is the first digital controller that can be considered for portable computing due to the significant reduction in operating current. Patented
The 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 5.1V without the need for any external components. The device offers a complete sequencing solution for each buck converter output. Switching frequency is 100kHz to 1.2MHz with the ability to set each channel independently, a useful feature for 2 stage conversion. The wide programmable range of DPWM switching frequency allows for optimization of efficiency and component size. An SMBus compliant I²C interface is provided to program the device and facilitate communication with the host for: fault reporting and handling, monitoring, voltage repositioning and setting other programmable features.
Features•Four DPWM 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 5.1V
•5 GPIOs
◦3 Load Switch I/O’s (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
•Non-volatile memory for configuration
•Minimal External Components
•PowerArchitect™ software for easy configuration