ISL6312CRZ-T Datasheet

Four-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR10, VR11, and AMD Applications


Four-Phase Buck PWM Controller with Integrated MOSFET Drivers for Intel VR10, VR11, and AMD Applications

The ISL6312 four-phase PWM control IC provides 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 multiphase product families. By reducing the number of external parts, this integration is optimized for a cost and space saving power management solution.

• Integrated Multiphase Power Conversion
- 2- or 3-Phase Operation with Internal Drivers
- 4-Phase Operation with External PWM Driver Signal
• 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
- Accurate Load Line Programming
- Precision Channel Current Balancing
• 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
• Overcurrent Protection
• Multi-Tiered Overvoltage Protection
• Digital Soft-Start
• Selectable Operation Frequency up to 1.5MHz Per Phase
• Pb-Free (RoHS Compliant)




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Manufacturer information


Intersil Corporation is a market leader in power management and precision analog technology for many of the most rigorous applications in the computing, consumer, and industrial markets. The company supplies a full range of power IC solutions including battery management, computing power, display power, regulators and controllers, and power modules; as well as precision analog components such as amplifiers and buffers, proximity and light sensors, data converters, timing products, optoelectronics and interface products. As a major supplier to the military and aerospace industries, Intersil’s product development methodologies reflect experience designing products to meet the highest standards for reliability and performance in challenging environments.

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