ISL95859AIRTZ-T

Overview

The ISL95859AIRTZ-T is a multi-phase switching controller designed for Intel IMVP8 processor core voltage regulation. It supports a 1+2+1 phase configuration, providing dedicated control for Vcore, Vccgt, and Vccio rails. The device operates within an input voltage range of 4.5V to 25V and features adjustable output voltages. It is housed in a 40-lead, 5x5mm TQFN package with exposed pad. The component is moisture sensitive (MSL Level 3) and complies with RoHS standards. This specific suffix denotes the reel packaging variant.

Feature Summary

• Implements Robust Ripple Regulator technology for precise load-line management
• Supports IMVP8 protocol for high-performance mobile processors
• Integrates protection mechanisms including over-current and thermal shutdown

Applications

• Intel Core i7/i9 processor power delivery systems
• High-performance laptop and workstation mainboards
• Ultra-portable PC and tablet computing platforms

Procurement Notes

This component has reached End-of-Life status. Renesas issued discontinuation notifications effective November 4, 2025. Availability is restricted to remaining stock or obsolete channels. Verify final purchase orders carefully as supply is no longer guaranteed by the manufacturer. Design-in teams must initiate replacement strategies immediately to avoid production disruption.

Selection Notes

Select this controller only for legacy designs requiring strict IMVP8 compatibility with a 1+2+1 phase topology. Ensure the PCB layout accommodates the 40-pin TQFN footprint. Consider thermal dissipation requirements due to the dense integration. Evaluate alternative controllers from the same family if newer process nodes require updated VR specifications.

Part Context

Part of the ISL95859 series within the Robust Ripple Regulator portfolio. Designed specifically for Intel's IMVP8 standard. Shares architectural similarities with other IMVP8 controllers like the ISL95853 and ISL95857 but differs in phase count and pinout configuration. Manufactured by Renesas Electronics Corporation following the acquisition of Intersil.

Replacement Considerations

• ISL95859AIRTZ

FAQ

What does the 'T' suffix indicate in the part number?

The 'T' suffix designates that the device is supplied in a tape and reel packaging format, suitable for automated surface-mount assembly.

Is this component compatible with IMVP9 standards?

No, the ISL95859 is explicitly designed for Intel IMVP8 compliant processors and may not support IMVP9 signaling protocols.