ISL6566AIRZ

Special Purpose Regulators Overview

The ISL6566AIRZ is a three-phase PWM controller designed for VRM9 and VRM10 compliant applications. It integrates two independent PWM signals to drive high-side and low-side MOSFETs, featuring integrated gate drivers with peak currents of 2A source and 4A sink. The device supports VID-based voltage regulation, offering programmable output voltages via VID codes. It includes protection features such as over-current protection and thermal shutdown. The component is housed in a 40-lead QFN package.

Special Purpose Regulators Feature Summary

• Integrates three-phase PWM control logic with dual independent PWM signal generation for precise power delivery.
• Includes built-in gate drivers capable of sourcing 2A and sinking 4A to efficiently drive external MOSFETs.
• Supports VRM9 and VRM10 specifications with VID-coded voltage selection for flexible CPU core voltage regulation.

Special Purpose Regulators Applications

• Voltage Regulator Modules (VRM) for Intel processors
• Multi-phase power supply designs for desktop computers
• Server and workstation mainboard power stages

Special Purpose Regulators Procurement Notes

Verify the specific suffix 'AIRZ' against the manufacturer's official datasheet to confirm pinout compatibility and temperature range specifications. Confirm that the component status is End-of-Life or Obsolete before initiating procurement, as availability may be restricted to surplus channels only. Ensure that any substitute components meet the same electrical characteristics and package dimensions.

Special Purpose Regulators Selection Notes

Select this component for designs requiring VRM9 or VRM10 compliance with integrated gate driving capabilities. Evaluate the need for three-phase topology versus higher phase counts based on processor current requirements. Consider the thermal performance of the QFN package and ensure adequate PCB copper area for heat dissipation. Verify that the VID interface matches the target processor's voltage identification protocol.

Special Purpose Regulators Part Context

The ISL6566 series was widely used in the mid-2000s for powering AMD Socket 939 and Intel LGA775 processors. It represents a class of integrated power management solutions that combined control logic and gate driving in a single package to reduce component count. The AIRZ variant denotes the industrial temperature range and RoHS-compliant lead-free packaging.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the End-of-Life status, direct replacements must be sourced from authorized distributors holding remaining stock or through cross-reference tools verifying identical pinouts and electrical parameters.