ISL6261CRZ-T

Special Purpose Regulators Overview

The ISL6261CRZ-T is a single-phase core voltage regulator implementing the Intel IMVP-6 protocol for mobile CPUs. It utilizes Intersil's patented R3 Technology, which employs a robust ripple modulator with variable switching frequency to achieve faster transient response compared to traditional multi-phase designs. The device integrates internal gate drivers with 2A driving capability and supports 7-bit VID inputs ranging from 0.300V to 1.500V in 12.5mV steps. Key electrical parameters include an output voltage range of 0.3V to 1.5V, input voltage of 4.75V to 5.25V, and operation up to 100°C junction temperature. It features lossless inductor DCR current sensing, differential remote voltage sensing, and comprehensive protection against overvoltage, undervoltage, and overcurrent conditions.

Special Purpose Regulators Feature Summary

• Implements Intel IMVP-6 protocol with integrated R3 Technology for enhanced transient response via variable switching frequency modulation.
• Supports on-the-fly VID changes through 7-bit inputs with high system accuracy and enhanced load line precision.
• Integrates dual-mode current sensing capabilities including lossless inductor DCR and precision resistive methods.

Special Purpose Regulators Applications

• Core voltage regulation for Intel Mobile CPUs utilizing the IMVP-6 standard
• Single-phase DC/DC buck converter implementations in portable computing devices
• Power management systems requiring fast transient response and precise voltage control

Special Purpose Regulators Procurement Notes

Verify component authenticity as the manufacturer may have undergone corporate transitions affecting production status. Confirm that the specific suffix corresponds to the tape-and-reel packaging variant intended for automated assembly processes. Ensure compatibility with existing PCB footprints and thermal management requirements before finalizing procurement decisions.

Special Purpose Regulators Selection Notes

Select this component when designing power stages for mobile processors requiring single-phase efficiency with multi-phase-like transient performance. Evaluate the trade-off between component count reduction and thermal dissipation capabilities inherent to single-phase topologies. Verify that the supported VID codes align with the target processor's voltage identification requirements.

Special Purpose Regulators Part Context

This part belongs to the ISL6261 family of single-phase core regulators designed specifically for mobile computing applications. It serves as a compact alternative to complex multi-phase controllers while maintaining high dynamic performance through proprietary modulation techniques. The series is characterized by its integration of gate drivers and advanced sensing features within a small footprint.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official manufacturer resources for updated lifecycle information or cross-reference compatible components within the same product family.

Special Purpose Regulators FAQ

How does the ISL6261 handle load transients?

It uses patented R3 Technology which commands a variable switching frequency during load transients to provide faster response times compared to traditional fixed-frequency regulators.

What current sensing schemes are supported?

The device supports both lossless inductor DCR current sensing and precision resistive current sensing options.