ISL6528CBZ

Overview

The ISL6528CBZ is a dual-output power management integrated circuit manufactured by Renesas Electronics Corporation. It integrates one synchronous buck switching controller and one linear regulator (LDO) within an 8-lead SOIC package. The switching section operates at a frequency of 600 kHz, while the device functions with a supply voltage range of 4.5 V to 5.5 V. Designed for surface mount installation, it supports operating temperatures from 0°C to 70°C and complies with RoHS3 standards.

Feature Summary

• Integrates a synchronous buck converter and a linear regulator in a single compact package
• Utilizes voltage-mode control with pulse width modulation for the switching output
• Includes an internal linear controller alongside the primary switching function

Applications

• Dual-rail power distribution systems requiring combined switching and linear regulation
• Embedded electronics utilizing standard 5V logic supplies
• Compact board designs constrained by limited component footprint

Procurement Notes

Verify manufacturer documentation carefully as Rochester Electronics distributes this part. Confirm that the specific suffix matches your design requirements. Check current availability status since the component may be discontinued or subject to supply constraints. Ensure compatibility with existing PCB layouts before procurement.

Selection Notes

Select this component when a system requires both high-efficiency switching regulation and low-noise linear output from a single IC. The 600 kHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Verify that the input voltage remains within the specified 4.5 V to 5.5 V range for proper operation.

Part Context

This device belongs to the ISL6528 family of power management ICs. Similar parts like the ISL6529 offer comparable functionality but utilize a 14-lead package to support higher current outputs. The ISL6528CBZ specifically targets applications where space efficiency is prioritized over maximum load capacity.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.