ISL6530CB-T

Special Purpose Regulators Overview

The ISL6530CB-T is a dual switching controller designed for Intel Pentium III and IV voltage regulator modules. It operates with an input voltage range of 4.5V to 5.5V and provides two outputs. The device supports a maximum switching frequency of 325kHz. It is housed in a 24-SOIC package. This component functions as a specialized power management IC for processor core voltage regulation.

Special Purpose Regulators Feature Summary

• Dual output architecture for synchronized buck conversion
• Optimized control loop for Intel Pentium III and IV processors
• Voltage-mode PWM control strategy

Special Purpose Regulators Applications

• Intel Pentium III processor voltage regulation
• Intel Pentium IV processor voltage regulation
• DDR memory power supply circuits

Special Purpose Regulators Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging configuration. Confirm RoHS compliance status as some variants may differ. Ensure the 24-SOIC package matches your PCB footprint requirements. Check for obsolescence notifications from Renesas or Intersil distributors before finalizing procurement plans.

Special Purpose Regulators Selection Notes

Select this component when designing for legacy Intel Pentium III or IV platforms requiring dual-phase synchronous rectification. Verify that the 325kHz maximum switching frequency aligns with your thermal and efficiency targets. Ensure compatibility with the required VID (Voltage ID) signaling protocols used by the target processor.

Special Purpose Regulators Part Context

This part belongs to the Intersil/Renesas family of VRM controllers. It is specifically engineered for high-current, low-voltage applications typical of desktop and server processors from the early 2000s era. It serves as a critical interface between the CPU VID lines and the power stage drivers.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Renesas cross-reference guides for potential alternatives if this component is discontinued.