ISL6312CRZ

Special Purpose Regulators Overview

The ISL6312CRZ is a four-phase buck PWM controller with integrated MOSFET drivers, designed for Intel VR10, VR11, and AMD microprocessor applications. It operates within an input voltage range of 5V to 12V and provides a single output voltage adjustable from 0.38V to 1.6V. The device supports 2 or 3-phase operation with internal drivers and 4-phase operation with external PWM driver signals. It features differential remote voltage sensing and programmable VID codes. The component is housed in a 48-VFQFN package with a bare pad and operates at temperatures between 0°C and 70°C.

Special Purpose Regulators Feature Summary

• Integrated multiphase power conversion with built-in MOSFET drivers for reduced external component count
• Multi-processor compatibility supporting Intel VR10, VR11, and AMD CPU architectures via programmable VID codes
• Advanced control loop features including continuous DCR current sensing and Active Pulse Positioning modulation for transient response

Special Purpose Regulators Applications

• Intel VR10 microprocessor core voltage regulation
• Intel VR11 microprocessor core voltage regulation
• AMD CPU power management systems

Special Purpose Regulators Procurement Notes

Verify the specific suffix 'CRZ' against the manufacturer's official documentation to confirm the commercial temperature grade and tape-and-reel packaging configuration. Cross-reference the part number with Renesas Electronics Corporation to ensure alignment with current product lifecycle status, as this component may be subject to obsolescence notices. Confirm that the 48-QFN package dimensions match your PCB footprint requirements before finalizing procurement.

Special Purpose Regulators Selection Notes

Select this controller when designing power stages for advanced microprocessors requiring integrated driver functionality to minimize board space. Ensure the design accommodates the 5V to 12V input range and utilizes the differential remote sensing capability for accurate voltage regulation. Consider the thermal performance of the 48-VFQFN package relative to the expected load currents and ambient operating conditions within the 0°C to 70°C range.

Special Purpose Regulators Part Context

This component belongs to the ISL6312 series of multiphase PWM controllers manufactured by Renesas Electronics Corporation (formerly Intersil). It represents a shift toward highly integrated power management solutions by combining the PWM controller and MOSFET drivers into a single IC. This integration distinguishes it from previous generations that required separate driver components, offering optimized cost and space savings for high-density server and workstation power supplies.

Special Purpose Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.