The ON Semiconductor CS5155 is a high-performance, synchronous buck controller designed to meet the rigorous demands of power supply applications. This controller is tailored for systems that require efficient power conversion with fast transient response, making it an ideal choice for a variety of applications including computing systems, networking, and telecommunications equipment.

Key Features

• High Efficiency: The CS5155 integrates synchronous rectification with a peak efficiency that minimizes heat generation and improves overall system performance.
• Voltage Regulation: It features precise voltage regulation with an internal 0.8V reference, which allows for tight control over output voltages in critical applications.
• Adaptive Gate Drive: The adaptive non-overlapping gate drivers ensure optimal timing for power FETs, reducing switching losses and enhancing efficiency.
• Adjustable Switching Frequency: With an adjustable switching frequency from 150kHz to 650kHz, the CS5155 allows designers to balance efficiency and component size according to their specific needs.
• Protection Features: Comprehensive protection features include overvoltage, undervoltage, overcurrent, and thermal shutdown, safeguarding the system under abnormal conditions.

Applications

• Desktop and Notebook Computers
• Servers and Workstations
• Networking Equipment
• Telecommunications Systems
• DC-DC Power Modules

Technical Specifications

The CS5155 operates over a wide input voltage range and is capable of driving large MOSFETs, making it suitable for high-current applications. Its current mode control provides excellent line and load transient response. The device is available in a compact surface mount package, which is essential for space-constrained applications.

Quality and Reliability

ON Semiconductor is renowned for its commitment to quality and reliability, and the CS5155 is no exception. It undergoes rigorous testing and validation to ensure it meets the highest industry standards for performance and longevity.

Environmental Compliance

The CS5155 is RoHS compliant and lead-free, reflecting ON Semiconductor's dedication to environmental responsibility and the reduction of hazardous substances in electronic components.