ISL6260BCRZ

Special Purpose Regulators Overview

The ISL6260BCRZ is a multi-phase DC/DC converter designed for Intel VR12 specifications. It features three independent output channels, each capable of delivering up to 30A with a total current capacity of 90A. The device operates with an input voltage range of 4.75V to 5.25V and provides adjustable output voltages from 0.85V to 1.5V. It utilizes a buck topology with a fixed switching frequency of 300kHz. The component is housed in a 40-lead QFN package with an exposed pad and supports an operating temperature range from -10°C to +100°C.

Special Purpose Regulators Feature Summary

• Complies with Intel VR12 Multi-Phase Controller specification for high-performance processors
• Integrates three independent synchronous buck converters with dedicated phase outputs
• Supports dynamic load-line adjustment and remote voltage sensing for precise regulation
• Includes comprehensive protection mechanisms such as over-current, over-voltage, and thermal shutdown

Special Purpose Regulators Applications

• Intel Core i7 and i5 processor power delivery systems
• High-density server and workstation motherboard designs
• Multi-phase CPU voltage regulator modules (VRMs)
• Graphics processing unit (GPU) power supply circuits

Special Purpose Regulators Procurement Notes

This component has reached the end-of-life status and is no longer available for new orders. Verification of availability should focus on existing stock or authorized distributors holding legacy inventory. Designers must confirm lead times carefully due to limited supply. Alternative solutions or redesigns are recommended for new production runs to ensure long-term supply chain stability.

Special Purpose Regulators Selection Notes

Select this controller when designing for Intel VR12 compliant platforms requiring three distinct voltage rails. Ensure the PCB layout supports the 40-QFN package thermal requirements. Verify that the external MOSFETs and inductors match the 300kHz switching frequency and 30A per phase current ratings. Confirm compatibility with the specific processor's VID (Voltage ID) interface requirements.

Special Purpose Regulators Part Context

The ISL6260B belongs to the Intersil (now Renesas) VR12 family of multi-phase controllers. It succeeded earlier VR11 series devices like the ISL6333, offering improved transient response and efficiency. This part is specifically engineered for demanding computing applications where stable power delivery under rapid load changes is critical for system reliability.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers: None identified.