深圳市中立信电子科技有限公司

ISL6333AIRZ-T

开关控制器 3-PH CNTRLLR W/3 DRVRS W/O DE 4 8LD 7

Three-Phase Buck PWM Controller with Integrated MOSFET Drivers and Light  Load Efficiency Enhancements for Intel VR11.1 Applications

The ISL6333AIRZ-T ISL6333 three-phase PWM family of control ICs provide a  precision voltage regulation system for advanced  microprocessors. ISL6333AIRZ-T 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 ISL6333AIRZ-T

• 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