Intersil

ISL6558CB

ISL6558CB Description

The ISL6558CB is a high-performance, multi-phase DC-DC switching controller designed for demanding power management applications. Manufactured by Intersil, this controller is part of the ISL6558 family and offers a comprehensive set of features tailored for efficient power delivery. Despite being marked as obsolete, the ISL6558CB remains a robust solution for applications requiring precise voltage regulation and high efficiency.

The ISL6558CB operates with a supply voltage range of 4.75V to 5.25V and supports a switching frequency from 80kHz to 1.5MHz, providing flexibility for various design requirements. It features a PWM signal output configuration with a positive polarity, ensuring compatibility with a wide range of power stage components. The controller is designed for a buck topology, making it suitable for step-down voltage conversion applications.

With a duty cycle of up to 75%, the ISL6558CB can efficiently manage power delivery, even under varying load conditions. It supports four output phases, enabling the controller to distribute power across multiple channels for enhanced performance and reduced ripple. The controller also includes essential control features such as enable, frequency control, and power good signals, providing designers with the tools needed to optimize system performance and reliability.

ISL6558CB Features

• Output Type: PWM Signal
• Output Configuration: Positive
• Frequency - Switching: 80kHz to 1.5MHz
• Voltage - Supply (Vcc/Vdd): 4.75V to 5.25V
• Operating Temperature: 0°C to 70°C (TA)
• Topology: Buck
• Number of Outputs: 4
• Control Features: Enable, Frequency Control, Power Good
• Duty Cycle (Max): 75%
• Output Phases: 4
• Mounting Type: Surface Mount
• Package: Tube

ISL6558CB Applications

The ISL6558CB is ideal for applications requiring high efficiency and precise voltage regulation. Its ability to operate within a wide frequency range and support multiple output phases makes it suitable for:

• High-Performance Computing: Providing stable power to processors and GPUs.
• Telecommunications: Ensuring reliable power delivery in base stations and networking equipment.
• Industrial Systems: Managing power in PLCs and other industrial control systems.
• Consumer Electronics: Enhancing power efficiency in gaming consoles and high-end desktops.

Conclusion of ISL6558CB

The ISL6558CB stands out for its comprehensive feature set and robust performance, making it a reliable choice for power management applications. Despite its obsolete status, the controller's ability to support multiple output phases, wide frequency range, and precise voltage regulation ensures it remains a viable solution for designers seeking high efficiency and reliability. Its compatibility with surface mount technology and tube packaging further enhances its versatility in various electronic systems.