四相降压PWM控制器集成MOSFET驱动器和I2C接口的英特尔VR10 ， VR11 ， AMD和应用 Four-Phase Buck PWM Controller with Integrated MOSFET Drivers and I2C Interface for Intel VR10, VR11, and AMD Applications
Four-Phase Buck PWM Controller with Integrated MOSFET Drivers and I2C Interface for Intel VR10, VR11, and AMD Applications
The ISL6322 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-Phase 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
• I2C Interface
– Voltage Margining Offset
– Switching Frequency Adjustment
– Overvoltage Protection Level Adjustment
– Selects Adaptive Dead Time Scheme
• User Selectable I2C “Slave Only” Device Address: 1000_110x or 1000_111x
• 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 Plus Anneal Available RoHS Compliant
