The ISL6322G two-phase PWM control IC provides a precision voltage regulation system for advanced microprocessors and memory. 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 1-Phase Operation with Internal Drivers

• Phase Dropping for Higher Efficiency at Low Output Current Loads

• 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

- Precision Channel-Current Balancing

• I2C Interface

- Phase Dropping

- 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

• Maximum Allowable Output Voltage of 1.6V

• Overcurrent Protection

• Multi-Tiered Overvoltage Protection

• Digital Soft-Start

• Selectable Operation Frequency up to 1.5MHz Per Phase

• Pb-Free (RoHS Compliant)