ISL95831IRTZ

Special Purpose Regulators Overview

The ISL95831IRTZ is a dual-output switching controller designed for Intel IMVP-7 and VR12 compliant CPUs. It features a Robust Ripple Regulator (R3) architecture with configurable phase support for the first output and a dedicated single-phase second output. The device operates within an input voltage range of 4.5V to 25V, delivering adjustable output voltages from 0.25V to 1.52V. It supports lossless inductor DCR and precision resistor current sensing methods. Packaged in a 48-TQFN (6x6) surface-mount enclosure, it functions across a temperature range of -10°C to 100°C.

Special Purpose Regulators Feature Summary

• Configurable multi-phase architecture for primary CPU core power delivery using integrated gate drivers
• Integrated secondary output channel with dedicated gate driver for auxiliary rail generation
• Supports differential remote voltage sensing for improved load-point accuracy
• Programmable parameters for maximum current limits and thermal protection thresholds

Special Purpose Regulators Applications

• Intel IMVP-7 compliant computer systems
• VR12 standard processor voltage regulation modules
• Notebook and mobile computing platform power designs
• High-performance desktop CPU core power stages

Special Purpose Regulators Procurement Notes

Verify component authenticity through authorized Renesas distributors due to end-of-life status. Confirm package marking and pinout alignment against official datasheets before integration. Check for recent Product Change Notifications regarding label updates or manufacturing site changes. Ensure storage conditions meet moisture sensitivity level requirements prior to reflow soldering processes.

Special Purpose Regulators Selection Notes

Select this controller for designs requiring flexible phase configuration on the main output alongside a fixed secondary rail. Evaluate compatibility with existing inductor selections for DCR sensing implementation. Consider thermal management strategies given the wide operating temperature range. Verify that system input voltage profiles remain within the specified 4.5V to 25V window during all transient conditions.

Special Purpose Regulators Part Context

Part of the Robust Ripple Regulator family targeting high-efficiency CPU power management. Designed to replace legacy controllers while supporting evolving Intel voltage regulator standards. Offers integrated gate drivers to reduce external component count compared to discrete solutions. Targets applications demanding precise voltage tracking and rapid transient response capabilities.

Special Purpose Regulators Replacement Considerations

Check for direct pin-compatible upgrades within the ISL95831 series variants such as tape-and-reel options. Review ISL95836HRTZ for similar functionality in different packaging if lead availability dictates. Consult manufacturer discontinuation notices for recommended obsolescence alternatives.