The AZ2940S-3.3TR is a low dropout positive voltage regulator manufactured by BCD Semiconductor Manufacturing Limited. It is designed to provide a stable and regulated 3.3V output voltage from a higher input voltage. This regulator is capable of delivering up to 1A of current, making it suitable for a variety of applications requiring a regulated 3.3V supply.

Applications

• Microcontroller Power: Commonly used to provide stable 3.3V power to microcontrollers.
• FPGA Power: Used to regulate power to FPGAs, especially for I/O voltage.
• Post Regulation for Switching Power Supplies: Provides a clean and stable 3.3V output after a switching power supply.
• Networking Equipment: Employed in networking devices for stable voltage to critical components.
• Industrial Control Systems: Suitable for providing regulated voltage in industrial automation and control systems.

Features

• Low Dropout Voltage: Offers a low dropout voltage, allowing it to operate with a small difference between input and output voltage.
• 1A Output Current: Capable of supplying up to 1A of output current.
• 3.3V Fixed Output: Provides a fixed 3.3V regulated output.
• Over Current Protection: Includes over current protection to prevent damage from excessive current draw.
• Thermal Overload Protection: Features thermal overload protection to shut down the regulator in case of overheating.

Benefits

• Stable Voltage Regulation: Provides a stable and regulated 3.3V output, ensuring reliable operation of connected devices.
• Protection Features: Over current and thermal overload protection enhance the durability and longevity of the regulator and connected devices.
• Wide Input Voltage Range: Operates over a wide input voltage range, providing flexibility in application design.
• Simple Implementation: Requires minimal external components for operation, simplifying circuit design.
• Compact Size: Available in a compact package, making it suitable for space-constrained applications.

Additional Details

The AZ2940S-3.3TR typically comes in a SOT-223 package. It requires input and output capacitors for stable operation; the datasheet recommends specific values based on the application's requirements. The regulator's dropout voltage is typically around 0.85V at full load. It is designed to operate within a specific temperature range; refer to the datasheet for detailed operating temperature specifications.