ISL6334AIRZ-T

Special Purpose Regulators Overview

The ISL6334AIRZ-T is a four-phase PWM controller designed for Intel VR11.1 microprocessor core voltage regulation. It operates with an input voltage range of 3V to 12V and provides an adjustable output voltage from 500mV to 1.6V. The device supports switching frequencies up to 1MHz and delivers load currents up to 200A. It functions within an industrial temperature range of -40°C to +85°C and utilizes a 40-lead QFN package.

Special Purpose Regulators Feature Summary

• Complies with Intel VR11.1 specifications for accurate load current reporting via the IMON pin.
• Utilizes proprietary Active Pulse Positioning and Adaptive Phase Alignment modulation schemes.
• Supports active phase adding and dropping to maintain high efficiency at light loads.

Special Purpose Regulators Applications

• Microprocessor core voltage regulation
• High-performance computing systems
• Server power supply designs

Special Purpose Regulators Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm datasheet revisions and packaging details, as the tube variant may differ from tape-and-reel specifications. Ensure compliance with RoHS directives and moisture sensitivity levels before integration into production workflows.

Special Purpose Regulators Selection Notes

Select this component for applications requiring strict adherence to Intel VR11.1 standards. Evaluate thermal management requirements for the 40-QFN package. Consider system transient response needs when configuring phase counts and switching frequencies relative to output capacitor selection.

Special Purpose Regulators Part Context

This part belongs to the ISL6334A series, which includes variants like the ISL6334AIRZ. It serves as a specialized power management IC within Renesas's portfolio for high-density power delivery in advanced processor architectures.

Special Purpose Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing board layouts and control signals if considering alternative controllers from the same manufacturer family.

Special Purpose Regulators FAQ

What modulation scheme does the ISL6334AIRZ-T use?

It utilizes Intersil’s proprietary Active Pulse Positioning (APP) and Adaptive Phase Alignment (APA) modulation schemes.

How does the controller handle light load conditions?

It enters 1- or 2-phase operation with diode emulation options upon receiving a low-power signal to reduce magnetic core and switching losses.