ISL95712IRZ-T

Special Purpose Regulators Overview

The ISL95712IRZ-T is a multiphase PWM regulator designed for AMD Fusion desktop CPUs utilizing the SVI 2.0 interface. It integrates dual output controllers with 12V core gate drivers, supporting configurable phase counts of up to four for the core and three for the Northbridge. The device operates within an input voltage range of 4.5V to 5.5V, delivering outputs from 0.5V to 1.55V in 6.25mV steps. It features Robust Ripple Regulator technology for adaptive switching frequency control, ensuring high efficiency and fast transient response across varying load conditions.

Special Purpose Regulators Feature Summary

• Supports AMD SVI 2.0 serial data bus interface and PMBus communication
• Integrates dual output controllers with 12V integrated core gate drivers
• Utilizes Robust Ripple Regulator technology for automatic switching frequency adjustment
• Provides precision voltage regulation with enhanced load line accuracy

Special Purpose Regulators Applications

• AMD Fusion desktop CPU core power supply
• Northbridge processor power delivery
• Microprocessor graphics processor core power solutions

Special Purpose Regulators Procurement Notes

Verify the specific suffix IRZ-T against the manufacturer's current datasheet to confirm tape-and-reel packaging and RoHS compliance status. Ensure compatibility with AMD SVI 2.0 protocols before integration. Cross-reference the exact part number with Renesas Electronics Corporation official documentation to validate active production status and any recent design changes or obsolescence notices.

Special Purpose Regulators Selection Notes

Select this component for applications requiring a single-chip solution for dual-output voltage regulation in AMD-based desktop systems. The integrated gate drivers reduce external component count compared to discrete solutions. Consider the thermal performance of the 52-lead QFN package and ensure adequate PCB layout for high-current phases. Verify that the programmable slew rate and droop settings align with the target processor's power requirements.

Special Purpose Regulators Part Context

The ISL95712 belongs to the Renesas (formerly Intersil) portfolio of professional power management ICs. It is part of the series designed specifically for complex multi-core processors requiring precise voltage control. The device leverages proprietary R3 technology to optimize efficiency during light-load and transient states, distinguishing it from traditional fixed-frequency PWM regulators in the same application space.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.