ISL6549CB-T

Overview

The ISL6549CB-T is a dual-output switching controller manufactured by Intersil, designed for synchronous step-down (buck) and linear regulator topologies. It operates with a supply voltage range of 4.75 V to 5.25 V and supports a switching frequency between 150 kHz and 1 MHz. The device provides two independent output channels capable of delivering up to 20 A each, with an adjustable output voltage range from 800 mV to 13.2 V. It features a maximum duty cycle of 100% and functions within an operating temperature range of 0°C to +70°C. The component is housed in a 14-lead SOIC package.

Feature Summary

• Supports synchronous buck and linear regulator configurations for flexible power management architectures.
• Enables precise load regulation through adjustable output voltage control across a wide range.
• Integrates high-frequency switching capabilities to optimize passive component size and system efficiency.

Applications

• Central processing unit (CPU) core voltage regulation
• Memory subsystem power delivery
• General-purpose point-of-load conversion

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging rather than tube distribution. Confirm RoHS compliance status as detailed in the official datasheet. Check for End-of-Life notifications or discontinuance alerts from Renesas/Intersil prior to finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring dual independent outputs with high current capacity. Ensure the input supply voltage remains within the specified 4.75 V to 5.25 V window. Verify that the thermal design accommodates the SOIC-Narrow-14 package constraints for the intended load conditions.

Part Context

This part belongs to the ISL6549 series of power management integrated circuits. It serves as a specialized controller for multi-phase or dual-rail power supplies in computing applications. The manufacturer, Intersil, is now part of Renesas Electronics Corporation, which continues to support the product line documentation.

Replacement Considerations

Consult official cross-reference lists for verified substitutes. No direct public substitute part numbers are confirmed in the provided source material.