ISL6333IRZ

三相降压PWM控制器集成MOSFET驱动器和轻载效率增强的英特尔VR11.1应用 Three-Phase Buck PWM Controller with Integrated MOSFET Drivers and Light Load Efficiency Enhancements for Intel VR11.1 Applications

The ISL6333 three-phase PWM family of control ICs provide 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 multi-phase product families. By reducing the number of external parts, this integration is optimized for a cost and space saving power management solution.

Features

• Intel VR11.1 Compatible

\- IMON Pin for Output Current Monitoring

\- Power State Indicator PSI# Pin for Phase Dropping and Higher Efficiency During Light Load States

• CPURST_N Input to Eliminate Required Extensive

External Circuit for proper PSI# Operation of Intel’s

Eaglelake Chipset Platform ISL6333B, ISL6333C Only

• Integrated Multi-Phase Power Conversion

\- 3-Phase or 2-Phase Operation with Internal Drivers

• 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

\- Integrated Programmable Current Sense Resistors

\- Accurate Load Line Programming

\- Precision Channel Current Balancing

• Gate Voltage Optimization Technology ISL6333,ISL6333B Only

• Power Saving Diode Emulation Mode ISL6333, ISL6333B Only

• Optimized for use with Coupled Inductors

• Variable Gate Drive Bias: +5V to +12V

• Microprocessor Voltage Identification Inputs

\- 8-bit VID Input for Selecting VR11 DAC Voltages

\- Dynamic VID Technology

• Dynamic VID Compensation

• Overcurrent Protection and Channel Current Limit

• Multi-tiered Overvoltage Protection

• Digital Soft-Start

• Selectable Operation Frequency up to 1.0MHz Per Phase

• Pb-free RoHS Compliant