●_Four-Phase Buck PWM Controller with _
●_Integrated MOSFET Drivers for Intel VR10, _
●_VR11, and AMD Applications_
●The ISL6312 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.
●_Features_
●• Integrated Multiphase Power Conversion
●\- 2- or 3-Phase Operation with Internal Drivers
●\- 4-Phase Operation with External PWM Driver Signal
●• Precision Core Voltage Regulation
●\- Differential Remote Voltage Sensing
●\- ±0.5% System Accuracy Over-Temperature
●\- Adjustable Reference-Voltage Offset
●• Optimal Transient Response
●\- Active Pulse Positioning (APP) Modulation
●\- Adaptive Phase Alignment (APA)
●• Fully Differential, Continuous DCR Current Sensing
●\- Accurate Load Line Programming
●\- Precision Channel Current Balancing
●• User Selectable Adaptive Dead Time Scheme
●\- PHASE Detect or LGATE Detect for Application Flexibility
●• Variable Gate Drive Bias: 5V to 12V
●• Multi-Processor Compatible
●\- Intel VR10 and VR11 Modes of Operation
●\- AMD Mode of Operation
●• Microprocessor Voltage Identification Inputs
●\- 8-bit DAC
●\- Selectable between Intel’s Extended VR10, VR11, AMD 5-bit, and AMD 6-bit DAC Tables
●\- Dynamic VID Technology
●• Overcurrent Protection
●• Multi-Tiered Overvoltage Protection
●• Digital Soft-Start
●• Selectable Operation Frequency up to 1.5MHz Per Phase
●• Pb-Free (RoHS Compliant)
