ISL6504CBZ-T

Power Supply Controllers, Monitors Overview

The ISL6504CBZ-T is a multiple linear power controller with an ACPI control interface, designed for microprocessor and computer applications. It integrates three linear controllers/regulators, switching, monitoring, and control functions into a 20-pin QFN 6x6 package. The device provides four ACPI-controlled voltages: 5VDUAL USB/Keyboard/Mouse, 3.3VDUAL/3.3VSB PCI/Auxiliary/LAN, 1.2V VID Processor VID Circuitry, and 1.5VSB ICH4 Resume Well. It features excellent output voltage regulation of ±2.0% over temperature for all outputs.

Power Supply Controllers, Monitors Feature Summary

• Integrates three linear controllers and switching functions for ACPI-compliant designs
• Provides four distinct ACPI-controlled voltage planes
• Includes undervoltage monitoring with centralized fault reporting and temperature shutdown

Power Supply Controllers, Monitors Applications

• ACPI-compliant power regulation for motherboards
• Microprocessor power systems
• Computer applications requiring S3/S4/S5 sleep state management

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'CBZ-T' against the manufacturer's current datasheet to confirm RoHS compliance status and tape-and-reel packaging details. Confirm that the QFN 6x6 package dimensions match your PCB footprint requirements. Ensure compatibility with the required ATX supply inputs for the integrated regulators.

Power Supply Controllers, Monitors Selection Notes

Select this component for designs requiring integrated ACPI voltage sequencing without external discrete logic. Compare the 20-pin QFN option against the 16-pin SOIC variant based on available board space and thermal dissipation needs. Verify that the ±2.0% regulation accuracy meets the specific tolerance requirements for the connected processor or chipset components.

Power Supply Controllers, Monitors Part Context

The ISL6504 series complements other power building blocks in ACPI-compliant designs. It manages power states by selecting active or sleep outputs via digital control pins. The device simplifies motherboard power design by consolidating multiple regulator and monitoring functions into a single small-footprint IC.

Power Supply Controllers, Monitors Replacement Considerations

Check for direct pin-compatible replacements within the ISL6504 family, such as the ISL6504A variants which may differ in 5VDUAL behavior during S4/S5 states. Verify if newer Renesas PMICs offer similar ACPI integration with updated process technologies.