ISL6549IRZ-T

Overview

The ISL6549IRZ-T is a dual-output switching controller manufactured by Renesas under the Intersil brand, housed in a 14-lead SOIC-Narrow package. It integrates one synchronous buck controller and one linear regulator (LDO) to deliver two independent output voltages. The device operates with a switching frequency range of 150 kHz to 1 MHz and supports an output voltage range from 800 mV to 13.2 V. Designed for surface mount installation, it functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrates a synchronous step-down controller and a linear regulator for dual-voltage generation
• Provides power control and protection mechanisms for high-performance applications
• Supports adjustable switching frequencies between 150 kHz and 1 MHz

Applications

• High-performance systems requiring dual voltage rails
• Embedded power management solutions
• Industrial control equipment

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm package integrity and pin alignment against the 14-SOIC specification. Review the official discontinuance notification for final purchase deadlines. Ensure storage conditions comply with humidity sensitivity requirements prior to assembly.

Selection Notes

Select this component when a single IC solution is required for generating both regulated DC and low-noise analog supplies. Evaluate thermal performance within the 0°C to +70°C operating range. Consider the fixed 14-lead SOIC footprint during PCB layout. Verify that the input supply voltage aligns with the controller's operational limits.

Part Context

This part belongs to the ISL6549 series of mixed-signal power management ICs. It represents a consolidated approach to power distribution by combining switching and linear regulation technologies. The device was originally developed by Intersil before being integrated into Renesas Electronics' portfolio.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer engineering support for qualified alternatives or obsolescence management strategies.