The ISL6551IBZ-T is a synchronous rectified buck regulator controller from Intersil (now Renesas). It is designed to provide a highly efficient and cost-effective solution for converting a higher voltage to a lower voltage in various power supply applications. This controller supports a wide input voltage range and offers advanced features for precise voltage regulation and protection.

Applications

• Notebook Computers
• Desktop Computers
• Graphics Cards
• Servers
• Networking Equipment

Features

• Synchronous Rectification
• Adjustable Output Voltage
• Overcurrent Protection
• Overvoltage Protection
• Undervoltage Protection

Benefits

• High Efficiency
• Precise Voltage Regulation
• System Protection
• Reduced Component Count
• Improved Reliability

Additional Details

The ISL6551IBZ-T utilizes synchronous rectification to minimize power losses and improve efficiency compared to traditional diode-based buck regulators. It features an adjustable output voltage, allowing for flexible configuration based on specific application requirements. The controller incorporates comprehensive protection features, including overcurrent protection, overvoltage protection, and undervoltage protection, safeguarding the system from potential damage. It supports a wide input voltage range, accommodating various power supply sources. The controller is designed for ease of use, requiring a minimal number of external components. The ISL6551IBZ-T typically operates at a switching frequency between 200 kHz and 600 kHz. It is commonly used in applications where high efficiency and precise voltage regulation are critical, such as in notebook computers, desktop computers, and graphics cards. The package type is typically a small outline integrated circuit (SOIC) or thin shrink small outline package (TSSOP) for space-saving. The controller is designed to meet industry standards for safety and performance. It provides a reliable and efficient solution for voltage regulation in demanding power supply applications.