ISL6532BCR

Power Management - Specialized Overview

The ISL6532BCR is a dual-output switching controller designed for ACPI-compliant DDR and DDR2 memory power supplies. It integrates two buck converters within a 28-lead QFN package, supporting input voltages up to 10.2 V with a maximum output current of 650 mA per channel. The device operates at a fixed switching frequency of 250 kHz and features a duty cycle range up to 100%. It includes integrated protection mechanisms such as over-current protection and thermal shutdown, ensuring reliable operation across an industrial temperature range of -40°C to +85°C.

Power Management - Specialized Feature Summary

• Dual-channel buck topology optimized for simultaneous DDR and VTT memory rail regulation
• Integrated over-current protection and thermal shutdown for enhanced system reliability
• Fixed 250 kHz switching frequency enabling compact passive component selection

Power Management - Specialized Applications

• DDR/DDR2 memory subsystem power management
• ACPI-compliant motherboard voltage regulation
• Springdale platform memory power supply design

Power Management - Specialized Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance and moisture sensitivity level (MSL 3) requirements during storage and handling. Review the latest Product Change Notification for any assembly site or labeling updates prior to final procurement validation.

Power Management - Specialized Selection Notes

Select this controller for applications requiring synchronized dual-output regulation for DDR memory architectures. Ensure input voltage ranges align with the 10.2 V maximum limit. Consider the 28-QFN package constraints for thermal dissipation and PCB layout space when designing the power stage.

Power Management - Specialized Part Context

The ISL6532BCR belongs to the ISL6532A family of memory power controllers manufactured by Renesas Electronics. It serves as a specialized PMIC solution for legacy PC platforms, specifically targeting memory voltage generation in systems utilizing Intel Springdale chipset architectures.

Power Management - Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The component is listed as End-of-Life; consult manufacturer resources for potential cross-reference options.