ISL6552CB

DC DC Switching Controllers Overview

The ISL6552CB is a multi-phase buck PWM controller designed for microprocessor core voltage regulation. It supports VRM8 specifications with four output phases. The device operates within a switching frequency range of 50 kHz to 1.5 MHz and delivers up to 120 A output current. Output voltages are adjustable from 1.05 V to 1.825 V. It functions in an industrial temperature range of 0°C to +70°C and utilizes a 20-SOIC package.

DC DC Switching Controllers Feature Summary

• Multi-phase architecture for high-current processor power delivery
• Integrated PWM control for step-down topology
• Adjustable switching frequency for optimization
• Compliance with VRM8 standards

DC DC Switching Controllers Applications

• Microprocessor core voltage regulation
• High-performance computing systems
• Server power supply designs
• VRM8 compliant platforms

DC DC Switching Controllers Procurement Notes

Verify the specific suffix (e.g., Z) for RoHS compliance status. Confirm availability as distribution channels may list this component as limited supply or end-of-life. Ensure the 20-SOIC package matches your PCB footprint requirements before ordering.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring precise multi-phase buck conversion for CPU cores. Consider the 120 A capability and wide frequency range when designing thermal management and inductor selection. Verify compatibility with the target processor's VID signals and transient response requirements.

DC DC Switching Controllers Part Context

Part of the Intersil VRM controller family, now under Renesas Electronics. Designed specifically for next-generation processors requiring stable, low-voltage, high-current power supplies. Competes with other multi-phase controllers in the server and workstation market segments.

DC DC Switching Controllers Replacement Considerations

Check for direct pin-compatible alternatives within the same VRM series. Verify that any substitute supports the required 4-phase configuration and similar current capabilities.