ISL6524CBZA

Special Purpose Regulators Overview

The ISL6524CBZA is a switching controller designed for VRM8.5 voltage regulation in high-performance microprocessor applications. It provides power control and protection for four output voltages, including Vcore, VTT, VDDQ, and VDD2. The device operates with a 12V supply and supports a switching frequency of 215 kHz. It delivers up to 25A output current with a maximum duty cycle of 100%. Output voltages are adjustable, typically ranging from 1.05V to 1.825V for core rails. It is housed in a 28-SOIC package and functions within an operating temperature range of 0°C to +70°C.

Special Purpose Regulators Feature Summary

• Integrated linear FET control for precise voltage sequencing
• Supports VRM8.5 standard for multi-rail processor power
• Provides comprehensive protection mechanisms for system reliability

Special Purpose Regulators Applications

• Intel Pentium 4 and Xeon processor power supplies
• High-performance desktop motherboard designs
• Server and workstation VRM architectures

Special Purpose Regulators Procurement Notes

Verify component authenticity through authorized Renesas or Intersil distributors due to limited availability. Confirm RoHS compliance status and moisture sensitivity level before procurement. Check for obsolescence notices as this part may be subject to discontinuation. Ensure packaging specifications match design requirements for surface-mount assembly processes.

Special Purpose Regulators Selection Notes

Select this controller for designs requiring integrated four-phase control with linear FET drivers. It is suitable for applications needing strict VRM8.5 compliance. Consider thermal management capabilities when designing PCB layouts. Verify compatibility with target processor power sequencing requirements during the initial design phase.

Special Purpose Regulators Part Context

This component belongs to the ISL6524A series of special purpose regulators. It is manufactured by Renesas Electronics under the former Intersil brand. The device is categorized under PMIC - Voltage Regulators - Special Purpose. It serves as a key power management IC for legacy Intel platform architectures.

Special Purpose Regulators Replacement Considerations

Check for direct pin-compatible substitutes within the ISL6524 family. Verify functional equivalence with newer VRM controllers if upgrading platforms. Consult Renesas documentation for recommended cross-reference parts.