ISL6558CB-T

DC DC Switching Controllers Overview

The ISL6558CB-T is a multi-phase PWM controller designed for high-current applications. It regulates output voltage and balances load currents for two to four synchronous rectified buck converter channels. The device supports switching frequencies from 80 kHz to 1.5 MHz. It features a precision reference voltage of 0.8 V with ±1.0% accuracy over the commercial temperature range. The component operates within a supply voltage of 4.75 V to 5.25 V and supports an output current capability up to 120 A. It is housed in a 16-lead SOIC package.

DC DC Switching Controllers Feature Summary

• Multi-phase power conversion supporting 2, 3, or 4 phases
• Precision channel-current balance with lossless current sensing
• Integrated overcurrent and overvoltage protection mechanisms
• Digital soft-start and power good indication functionality

DC DC Switching Controllers Applications

• Core-voltage regulation for processors
• High-current point-of-load converters
• Synchronous rectified buck converter systems
• Applications requiring fast transient response

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance and anneal specifications against datasheet requirements. Check moisture sensitivity level handling procedures prior to assembly. Validate pinout compatibility with existing PCB footprints. Review replacement options if long-term supply stability is required.

DC DC Switching Controllers Selection Notes

Select this controller when designing multi-phase buck converters requiring precise current sharing. Ensure gate drivers such as HIP6601B or ISL6605 are compatible for complete solutions. Consider thermal management requirements given the high current capabilities. Verify that the operating frequency range matches system ripple constraints. Evaluate board space limitations regarding the 16-SOIC package dimensions.

DC DC Switching Controllers Part Context

The ISL6558 belongs to the Intersil VRM controller family. It complements companion gate drivers to form complete power stages. The device addresses core voltage regulation needs in computing platforms. Its design emphasizes efficiency and transient performance. The series includes variants with different packaging and termination options.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The component is listed as discontinued. Engineers should consult manufacturer obsolescence notices for potential alternatives.