PX3544

4-phase Graphics Processor Digital Multiphase Controller Product Brief PX3544 Applications Graphics Processors Intelligent Point-of-Load (POL) power regulation Features Multiphase power conversion – 1- to 4-phase operation 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 compensation Differential voltage sense Digital temperature sensor compensation Active Transient Response (ATR) enables meeting transient requirements with red...