ISL95812HRZ-T

Special Purpose Regulators Overview

The ISL95812HRZ-T is a multiphase PWM regulator controller designed for Intel VR12.5, VR12.6, and VR12.6+ processors. It utilizes Robust Ripple Regulator (R3) technology to deliver high-performance voltage regulation. The device supports an output current of up to 90 A with an adjustable output voltage range from 500 mV to 2.3 V. Operating within a supply voltage window of 4.5 V to 28 V, it functions reliably across temperatures from -10°C to +100°C. Housed in a compact 32-pin QFN-EP package measuring 4x4 mm with a height of 0.95 mm, it is supplied in tape and reel packaging.

Special Purpose Regulators Feature Summary

• Implements Robust Ripple Regulator (R3) technology for enhanced transient response and settling time compared to traditional modulation schemes.
• Features variable frequency topology enabling natural period stretching Discontinuous Conduction Mode (DCM) for improved light-load efficiency.
• Supports DCR current sensing with single NTC thermal compensation alongside discrete resistor current sensing options.
• Provides user-programmable parameters including boot voltage, IMAX, TMAX, voltage transition slew rate, and switching frequency.

Special Purpose Regulators Applications

• Intel VR12.5 compliant CPU power supplies
• Intel VR12.6 compliant CPU power supplies
• Intel VR12.6+ compliant CPU power supplies
• Notebook computer core voltage regulation

Special Purpose Regulators Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm package type and shipping format. Ensure compatibility with target Intel processor specifications before integration. Confirm moisture sensitivity level handling requirements during storage and assembly processes. Cross-reference pinout diagrams with PCB layout designs to ensure correct thermal pad connection and signal routing.

Special Purpose Regulators Selection Notes

Select this component when designing for Intel VR12.5, VR12.6, or VR12.6+ architectures requiring a single-output multiphase solution. Consider the R3 technology benefits for applications demanding fast transient response. Evaluate the 32-QFN package constraints against available board space. Verify that the required output current does not exceed the 90 A limit under specified operating conditions.

Special Purpose Regulators Part Context

This part belongs to the ISL95812 series of professional power management ICs manufactured by Renesas Electronics. It serves as a dedicated controller for multi-phase DC/DC converters targeting high-performance computing platforms. The series is characterized by its compliance with major Intel voltage regulator standards and integration of advanced ripple regulation techniques.

Special Purpose Regulators Replacement Considerations

ISL95812IRZ is a tube-packaged variant with identical electrical characteristics but different temperature rating (-40°C to +85°C). ISL95812IRZ-T offers the same performance in tape-and-reel format with the extended industrial temperature range. Verify temperature specifications and packaging requirements when substituting.