ISL95856IRZ-T

Special Purpose Regulators Overview

The ISL95856IRZ-T is a switching controller designed for Intel IMVP8 desktop applications. It functions as a 4+3 multi-phase controller, providing power management for microprocessors. The device utilizes Robust Ripple Regulator (R3) technology to ensure stable voltage regulation. It supports programmable SVID addresses for flexibility across different processor SKUs. The component operates within specified temperature ranges and includes integrated protection features. It is packaged in a Reel or Cut Tape format suitable for surface mount assembly.

Special Purpose Regulators Feature Summary

• Implements R3 modulator technology for faster transient settling times and improved light-load efficiency through diode emulation mode.
• Configurable multi-phase architecture supporting variable phase counts for core and graphics rails to optimize board area and cost.
• Features integrated gate drivers and supports both DCR current sensing with NTC compensation and resistor-based precision sensing.

Special Purpose Regulators Applications

• Intel IMVP8 compatible desktop CPU power supplies
• Core (IA) rail voltage regulation
• Graphics (GT) rail voltage regulation

Special Purpose Regulators Procurement Notes

Verify the current lifecycle status of the ISL95856IRZ-T prior to procurement, as official documentation indicates it may be obsolete or subject to discontinuation. Confirm availability through authorized distributors, noting that supply may be restricted in certain regions. Ensure compliance with RoHS specifications and moisture sensitivity levels required for your manufacturing process. Cross-reference part numbers carefully to avoid confusion with similar models in the ISL9585x series.

Special Purpose Regulators Selection Notes

Select the ISL95856IRZ-T when designing for Intel IMVP8 desktop processors requiring a combined 4+3 phase solution. Consider this component if board space optimization is critical due to its single-chip approach compared to two-chip alternatives. Evaluate the need for programmable SVID addressing to support multiple processor variants. Assess whether the integrated gate drivers and sensing options meet the specific thermal and performance requirements of the target application.

Special Purpose Regulators Part Context

This component belongs to the Renesas Intersil ISL9585x series of power management ICs. It is specifically engineered for high-performance desktop computing environments. The device integrates control logic with power stage driving capabilities. It represents a transition from older VR standards to IMVP8 compliance. The series emphasizes efficiency and transient response improvements over previous generations.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the potential end-of-life status, alternative solutions should be evaluated based on pin compatibility and functional equivalence. Consult Renesas Electronics Corporation for current portfolio recommendations replacing obsolete IMVP8 controllers.