PX3540 - Primarion

PX3540 Graphics Processor Digital Multiphase Controller

• Graphics Processors • Intelligent Point-of-Load (POL) power regulation Features • Multiphase power conversion • 100 kHz to 2 MHz switching frequency • Internal high precision voltage reference − ±12.4mV voltage setpoint accuracy • Startup and maximum voltages set through external resistor • 2-bit VID input for additional voltage control • Driver detect pr.

Features

• Multiphase power conversion
• 100 kHz to 2 MHz switching frequency
• Internal high precision voltage reference − ±12.4mV voltage setpoint accuracy
• Startup and maximum voltages set through external resistor
• 2-bit VID input for additional voltage control
• Driver detect prior to soft-start disables unpopulated phases
• Autonomous or user controlled phase dropping based on current balance and 12V supply faults
• Supports up to three 12V supplies with phase mapping
• Precise digital current balancing with programmable offsets for thermal balancing
• Digitally programmable loadline and loop c.