ISL6506BCBZ-T

Power Supply Controllers, Monitors Overview

The ISL6506BCBZ-T is a switching controller designed for ACPI-compliant power regulation in microprocessor and computer applications. It integrates control of the 5VDUAL and 3.3VDUAL rails within an 8-lead EPAD SOIC package. The device operates between 0°C and +70°C. It features selectable operating modes via S3 and S5 digital pins, utilizing an internal linear regulator for the 3.3VDUAL plane during sleep states and an external N-Channel MOSFET for active states. The ISL6506B variant specifically provides a 2A current limit on its internal 3.3V LDO.

Power Supply Controllers, Monitors Feature Summary

• Integrates control for 5VDUAL and 3.3VDUAL rails into a compact 8-lead package
• Supports ACPI-compliant designs with selectable active or sleep output modes
• Generates 3.3VDUAL voltage internally during sleep states using an ATX 5VSB supply

Power Supply Controllers, Monitors Applications

• ACPI-compliant power regulation for motherboards
• Microprocessor power management systems
• Computer application power supplies

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix BCBZ-T against the manufacturer's official datasheet to confirm pinout compatibility and thermal pad requirements. Ensure the component meets RoHS standards if required by your design specifications. Cross-reference the part number with Renesas Electronics documentation to validate the 2A LDO current limit characteristic distinct from the ISL6506A variant.

Power Supply Controllers, Monitors Selection Notes

Select this component for designs requiring integrated dual-rail control in an 8-lead form factor. The ISL6506B offers a higher 2A LDO current limit compared to the ISL6506A's 1A limit, making it suitable for loads demanding greater standby current. Confirm that the system architecture supports the use of an external N-Channel pass MOSFET for active state operation to minimize losses.

Power Supply Controllers, Monitors Part Context

This part belongs to the ISL6506B series, which complements other power building blocks in ACPI-compliant designs. The series includes variants like the ISL6506A, which differs primarily in LDO current limiting and sleep mode behavior. The ISL6506B shuts down the 5VDUAL output in S4/S5 states, whereas the ISL6506A keeps it active.

Power Supply Controllers, Monitors Replacement Considerations

The ISL6506A is functionally identical except for the 1A LDO current limit and persistent 5VDUAL output in S4/S5 sleep states.