ISL95859CHRTZ-T

Overview

The ISL95859CHRTZ-T is a multi-phase switching controller designed for IMVP8 compliant applications. It features a 1+2+1 phase configuration, providing core, VCC, and I/O voltage regulation. The device operates within an input voltage range of 4.5V to 25V and supports output currents up to 35A when paired with compatible DrMOS modules. It utilizes the Robust Ripple Regulator (R3) technology for precise transient response. The component is housed in a 40-lead 5x5mm TQFN package with an exposed pad for thermal management.

Feature Summary

• Implements 1+2+1 multi-phase control architecture for processor power delivery
• Compatible with IMVP8 specifications for high-performance digital loads
• Integrates Robust Ripple Regulator technology for enhanced stability
• Supports operation with integrated DrMOS modules for simplified design

Applications

• Intel Core processor core voltage regulation
• Server and workstation mainboard power systems
• High-performance desktop computer platforms
• IMVP8 compliant mobile computing devices

Procurement Notes

Verify component authenticity through authorized Renesas distributors due to end-of-life status. Confirm lot traceability and moisture sensitivity level handling requirements prior to assembly. Check for specific ordering suffixes that may indicate packaging variations or updated revision levels. Ensure compatibility with existing PCB footprints and thermal designs before finalizing procurement plans.

Selection Notes

Select this controller for designs requiring IMVP8 compliance and high current density. Evaluate thermal performance requirements given the 40-lead TQFN package constraints. Ensure system input voltage ranges align with the 4.5V to 25V operational window. Consider the availability of compatible DrMOS components for the 1+2+1 topology during the initial design phase.

Part Context

This component belongs to the ISL95859 series of multi-phase controllers from Renesas Electronics. It is part of the broader portfolio of power management solutions targeting high-performance computing applications. The series emphasizes efficiency and transient response capabilities required by modern processors.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. The component is listed as discontinued. Designers should consult Renesas technical support for qualified alternatives or consider redesigning with currently active multi-phase controllers.