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)
