ISL6261AIRZ

Special Purpose Regulators Overview

The ISL6261AIRZ is a single-phase core voltage regulator IC implementing the Intel IMVP-6 protocol for mobile CPUs. It utilizes Robust Ripple Regulator (R3) technology to achieve faster transient response through variable switching frequency control during load transients. The device features an integrated gate driver with 2A driving capability and supports 7-bit VID input for precise voltage adjustment in 12.5mV steps from 0.300V to 1.500V. It operates within an input voltage range of 5V to 25V, delivering an output voltage between 0.41V and 1.29V. The component is housed in a 32-QFN (5x5) package and functions reliably across a temperature range of -40°C to 100°C.

Special Purpose Regulators Feature Summary

• Implements Intel IMVP-6 protocol with patented R3 Technology for enhanced transient response via variable switching frequency.
• Integrates a high-current gate driver with 2A driving capability for efficient power stage control.
• Supports on-the-fly VID changes and lossless inductor DCR current sensing for improved load line accuracy.

Special Purpose Regulators Applications

• Single-phase core voltage regulation for Intel IMVP-6 mobile processors
• High-performance mobile computing systems requiring fast transient response
• Embedded power management solutions for CPU core supply

Special Purpose Regulators Procurement Notes

Verify component authenticity due to end-of-life status. Confirm RoHS compliance and MSL level 3 handling requirements. Check for available tape-and-reel alternatives if tube packaging is unsuitable for automated assembly. Validate thermal performance under maximum load conditions.

Special Purpose Regulators Selection Notes

Select this component for applications requiring a single-phase solution with IMVP-6 compatibility. Consider the trade-off between simplified bill of materials and reduced ripple cancellation compared to multi-phase controllers. Ensure external components support the variable frequency operation inherent to R3 technology.

Special Purpose Regulators Part Context

Part of the ISL6261 series designed for mobile CPU power delivery. Replaces earlier Intersil designs with enhanced accuracy and integrated drivers. Belongs to the Robust Ripple Regulator family, offering a compact alternative to traditional multi-phase buck regulators for specific mobile processor generations.

Special Purpose Regulators Replacement Considerations

ISL6261A: Updated version with minor parameter improvements. ISL6262AIRZ: Two-phase controller for higher current demands. Verify pinout and software compatibility when migrating to multi-phase or newer IMVP protocols.

Special Purpose Regulators FAQ

How does the ISL6261AIRZ handle load transients?

It uses R3 Technology to command a variable switching frequency during load transients, providing faster response times than traditional fixed-frequency regulators.

What current sensing methods are supported?

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