ISL6327IRZ

DC DC Switching Controllers Overview

The ISL6327IRZ is an enhanced 6-phase PWM controller designed for microprocessor core voltage regulation. It drives up to six synchronous-rectified buck channels in parallel, supporting VR11 standards. The device operates with a switching frequency range of 80 kHz to 1 MHz and accepts an 8-bit VID code for precise output voltage selection. It features a QFN-48 package and supports SMD/SMT installation. The component functions within a temperature range of -40°C to +85°C, providing robust power management for high-performance computing applications.

DC DC Switching Controllers Feature Summary

• Controls up to six synchronous-rectified buck channels in parallel for high-current delivery
• Supports VR11 standard compliance with integrated 8-bit VID code input
• Features adjustable switching frequency ranging from 80 kHz to 1 MHz

DC DC Switching Controllers Applications

• Microprocessor core voltage regulation
• High-performance server power supplies
• Workstation mainboard power stages

DC DC Switching Controllers Procurement Notes

Verify the obsolete status and End-of-Life (EOL) notification from Renesas/Intersil before procurement planning. Confirm that the QFN-48 package matches the target PCB footprint. Ensure compatibility with existing VR11 protocol implementations. Check for moisture sensitivity levels and reflow soldering requirements during handling. Source only from authorized distributors or verified secondary markets due to discontinuation.

DC DC Switching Controllers Selection Notes

Select this component when designing multi-phase power stages for CPU cores requiring VR11 compliance. It is suitable for applications needing up to six parallel buck channels controlled by a single IC. Consider the thermal performance of the QFN-48 package in high-density layouts. Evaluate the 80 kHz to 1 MHz frequency range against EMI constraints and inductor size requirements. Ensure the design supports the required output current capabilities of the target processor.

DC DC Switching Controllers Part Context

The ISL6327 series belongs to Intersil's portfolio of enhanced multi-phase PWM controllers. It is part of the ISL6327A family, which includes variants like ISL6327ACRZ and ISL6327CRZ. These components are specifically engineered for next-generation microprocessor power delivery systems. The IRZ suffix indicates a specific temperature grade and packaging configuration within this product line.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available as the component is discontinued. Designers should consult Renesas for potential pin-to-pin compatible alternatives or updated series replacements. Review the latest VR12 or VR13 compliant controllers if migrating to newer processor platforms.