DATASHEET
ISL6312A
Four-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR10,
VR11, and AMD Applications
The ISL6312A four-phase PWM control IC provides a
precision voltage regulation system for advanced
microprocessors. The integration of power MOSFET drivers
into the controller IC marks a departure from the separate
PWM controller and driver configuration of previous
multiphase product families. By reducing the number of
external parts, this integration is optimized for a cost and
space saving power management solution.
One outstanding feature of this controller IC is its
multi-processor compatibility, allowing it to work with both
Intel and AMD microprocessors. Included are programmable
VID codes for Intel VR10, VR11, as-well-as AMD DAC
tables. A unity gain, differential amplifier is provided for
remote voltage sensing, compensating for any potential
difference between remote and local grounds. The output
voltage can also be positively or negatively offset through
the use of a single external resistor.
The ISL6312A also includes advanced control loop features
for optimal transient response to load apply and removal. …