GPU Power PX3544

The PX3544 Graphics Processor Digital Multiphase Controller provides core power for today’s high current graphic processors by driving up to four synchronousrectified buck-converter channels in parallel. Interleaved timing of the channels results in a higher ripple frequency, reducing input and output ripple. With up to four phases, each capable of up to 2 MHz operation, the PX3544 can be used to build DC-DC converters that provide up to 130A with excellent efficiency, low ripple, and the lowest component count.

 
Applications
- Graphics Processors
-Intelligent Point-of-Load (POL) power regulation
Features
-Multiphase power conversion 1-4 phases
-Intelligent Point-of-Load (POL) power regulation
-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 reduced output capacitance
-I2C-bus interface for monitoring, control and configuration
-Internal non-volatile memory (NVM) to store custom configurations
-Extensive fault detection capability with two user configurable output fault pins
-Configurable latched fault or autonomous recovery shutdown
-Single +3.3V supply operation
-RoHS compliant 48-lead MLF plastic package
Part Number PX3544
Description 4-phase Video Processor Digital PWM Controller
# of Phases 1 to 4
# of Outputs 1


PX3544
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