ISL6211CA

Special Purpose Regulators Overview

The ISL6211CA is a Crusoe processor core-voltage regulator designed for high efficiency over a wide load range. It utilizes a loss-less current-sense scheme leveraging MOSFET RDS(ON) with an optional resistor for higher tolerance. The device features powerful gate drivers with adaptive dead time and employs summing current-mode control combined with on-chip active droop for optimal transient response. It supports TTL-compatible 5-bit digital output voltage selection, offering a wide range from 0.6VDC to 1.75VDC in specific steps, allowing on-the-fly VID code changes.

Special Purpose Regulators Feature Summary

• Loss-less current-sense scheme using MOSFET RDS(ON)
• Powerful gate drivers with adaptive dead time
• Summing current-mode control with on-chip active droop
• TTL-compatible 5-bit digital output voltage selection

Special Purpose Regulators Applications

• Crusoe processor core voltage regulation
• Portable computing systems requiring efficient power management
• Applications necessitating on-the-fly voltage adjustments

Special Purpose Regulators Procurement Notes

Verify the exact suffix and temperature grade against the original datasheet FN9043.1. Confirm that the component meets the specific thermal and electrical requirements of the target Crusoe processor implementation. Check for any legacy status updates from Renesas regarding this specific Intersil part number before finalizing procurement plans.

Special Purpose Regulators Selection Notes

Select this component when designing for Crusoe processors requiring precise core voltage regulation. Ensure the design accommodates the 5-bit digital interface for voltage selection. Verify that the external MOSFETs selected align with the loss-less current sensing capabilities and that the PCB layout supports the adaptive dead time functionality for optimal performance.

Special Purpose Regulators Part Context

The ISL6211CA belongs to the Intersil portfolio of power management ICs, specifically tailored for mobile processor applications. Intersil was acquired by Renesas Electronics, integrating its analog and power management technologies into the broader Renesas product line. This component represents the legacy design standards for early mobile CPU voltage regulation.

Special Purpose Regulators Replacement Considerations

Consult Renesas Product Legacy Documents for officially confirmed substitute part numbers. Direct replacements may require verification of pin compatibility and control interface alignment with modern equivalents.