FTM Board Club
Exar
XRP9711EVB-DEMO-1
Quad Channel Digital PWM/PFM Programmable Power Management System Demo Board

The XRP779711EVB-DEMO-1 board is a complete, four channel power system.

It provides 1.5V, 1.2V 1.8V and 2.5V at maximum currents of 10A, 10A, 6A and 6A
respectively. The 1.5V and 1.2V supplies can be adjusted in 2.5mV increments, the 1.8V
and 2.5V supplies in 5mV increments. The order and ramp rates for each supply can be
programmed to accommodate any sequencing requirement. All power supply operations can
be controlled over an I2C interface. Faults, output voltages and currents can also be
monitored. Two GPIO and three PSIO signals are available and can be programmed to
provide a variety of functions. Unused GPIO/PSIO pins can be programmed as I/O
expansion for a microcontroller. The board is supported by PowerArchitectTM 5.1 and plugs
directly onto the interposer board acting as an interface to Arduino controller.

Features

• XRP9711 Programmable Power Module
o Channels 1 and 2 driving external
power stages
o Channel 3 and 4 internal converters
• 4 Channel Power System
• Wide Input Voltage Range: 5.5V-22V
• I2C Interface
− Programming
− Monitoring
− Control
• Arduino