The ISL81334IBZ-T is a high-performance, synchronous buck-boost controller manufactured by Intersil (now Renesas). This controller is designed for applications requiring high efficiency and a wide input voltage range. It's suitable for regulating voltage in applications where the input voltage can be higher or lower than the desired output voltage.

Applications

• Power Tools
• Industrial Battery Chargers
• Notebook/Tablet Computers
• DC/DC Power Modules
• Regulated Power Supplies

Features

• Wide Input Voltage Range: 4.5V to 60V
• Adjustable Output Voltage
• Synchronous Rectification for High Efficiency
• Programmable Switching Frequency
• Overcurrent Protection (OCP)
• Overvoltage Protection (OVP)
• Undervoltage Lockout (UVLO)
• Thermal Shutdown

Benefits

• High Efficiency: Synchronous rectification minimizes power losses, resulting in high efficiency, especially at higher output currents.
• Wide Input Voltage Range: Operates over a broad input voltage range, making it suitable for various power sources, including batteries and unregulated supplies.
• Robust Protection Features: Comprehensive protection features (OCP, OVP, UVLO, thermal shutdown) ensure safe and reliable operation.
• Flexibility: Adjustable output voltage and programmable switching frequency allow for customization to specific application requirements.
• Simplified Design: Integrated features simplify the design process and reduce the number of external components required.

Technical Specifications

Key specifications for the ISL81334IBZ-T:

• Input Voltage Range: 4.5V to 60V
• Output Voltage: Adjustable
• Switching Frequency: Programmable up to 600kHz
• Maximum Duty Cycle: Up to 99%
• Quiescent Current: Typically 170µA
• Operating Temperature Range: -40°C to +125°C
• Package: 20-Lead HTSSOP

The ISL81334IBZ-T provides a flexible and efficient solution for buck-boost voltage regulation in a wide variety of applications. Its integrated protection features and adjustable parameters make it an excellent choice for demanding power supply designs.