ISL6534CR-T

Overview

The ISL6534CR-T is a triple-output power management integrated circuit manufactured by Intersil. It integrates two synchronous step-down (buck) converters and one low-dropout (LDO) linear regulator within a single 32-pin QFN package measuring 5x5 mm. The switching frequency for the buck regulators is adjustable, ranging from 300 kHz to 1 MHz. This component is designed to provide efficient voltage regulation for multi-rail systems requiring both high-current switching outputs and precise analog supply rails.

Feature Summary

• Integrates dual synchronous buck converters and a single LDO regulator in a compact footprint
• Features adjustable switching frequency range from 300 kHz to 1 MHz for optimization
• Utilizes a surface-mount 32-QFN package for space-constrained designs

Applications

• Multi-rail server and storage system power distribution
• Industrial control equipment requiring mixed switching and linear regulation
• Communication infrastructure base stations

Procurement Notes

Verify component status carefully as this part may be classified as obsolete or end-of-life by the manufacturer. Confirm availability through authorized distributors only. Ensure the specific suffix matches the required tape-and-reel packaging if applicable. Cross-reference datasheets for any pin-compatible alternatives due to potential discontinuation.

Selection Notes

Select this component when a design requires three distinct regulated voltages from a single IC to reduce board space. Consider the 300 kHz to 1 MHz frequency range for balancing efficiency and passive component size. Verify that the thermal performance of the 32-QFN package meets the application's heat dissipation requirements under maximum load conditions.

Part Context

This device belongs to Intersil's portfolio of multi-phase and multi-output power management solutions. It is part of a family of PMICs designed to simplify power architecture in complex electronic systems. The integration of both switching and linear regulators allows for noise-sensitive loads to be powered directly from the same chip as high-efficiency digital cores.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status indicated in some sources, engineers should consult official manufacturer channels for current lifecycle updates or qualified replacement components.