ISL95816HRZ-T

Special Purpose Regulators Overview

The ISL95816HRZ-T is a four-phase Pulse Width Modulation (PWM) controller IC designed for VR12.5 compliant microprocessor core power supplies. It operates with an input voltage range of 4.5V to 28V and provides an adjustable output voltage from 0.5V to 2.3V. The device utilizes Robust Ripple Regulator (R3) technology, supporting 4-, 3-, 2-, or 1-phase configurations via a serial control bus. It features a 32-pin QFN package with exposed pad.

Special Purpose Regulators Feature Summary

• Implements Robust Ripple Regulator (R3) technology for faster transient response and variable switching frequency during load transients.
• Supports DCR current sensing with single NTC thermistor compensation or precise resistor current sensing.
• Enables remote voltage sense and programmable parameters including V_BOOT, I_MAX, slew rate, and switching frequency.
• Includes adjustable overcurrent protection and Power-Good signaling capabilities.

Special Purpose Regulators Applications

• VR12.5 compliant microprocessor core power supplies
• Notebook computer CPU power regulation
• Multiphase PWM regulator designs

Special Purpose Regulators Procurement Notes

Verify component authenticity through authorized Renesas channels due to end-of-life status. Confirm RoHS3 compliance and MSL level 3 handling requirements. Check datasheet revisions for any pinout or electrical parameter updates prior to integration.

Special Purpose Regulators Selection Notes

Select this controller for applications requiring VR12.5 compatibility and compact board area solutions. Consider R3 technology benefits for efficiency improvements under light loads. Ensure thermal management aligns with the 32-QFN package constraints and operating temperature range.

Special Purpose Regulators Part Context

Part of the ISL95816 series within Renesas' PMIC portfolio. Designed specifically for Intel processor voltage regulation standards. Shares architectural similarities with other R3-based controllers but offers specific phase count and interface configurations tailored for mobile computing platforms.

Special Purpose Regulators Replacement Considerations

Consult official cross-reference lists for direct substitutes. Verify functional equivalence regarding VR12.5 protocol support and R3 modulation characteristics before substitution.