ISL6322GIRZ

两相降压PWM控制器集成MOSFET驱动器， I2C接口和相位调低 Two-Phase Buck PWM Controller with Integrated MOSFET Drivers, I2C Interface and Phase Dropping

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