The LT1129CF-3.3 from Linear Technology is a low-dropout voltage regulator designed to provide a fixed output of 3.3V with a precision tolerance. This component is ideal for applications that require a stable voltage source with a low voltage drop and high efficiency. The LT1129CF-3.3 is part of Linear Technology's family of micropower low dropout regulators, which are known for their reliability and performance in demanding environments.

Key Features

• Output Voltage: Fixed at 3.3V, which is a common voltage level for digital circuits and microcontroller-based systems.
• Dropout Voltage: Very low, typically around 0.45V at full load, which allows for efficient operation even with input voltages close to the output voltage.
• Output Current: Capable of supplying up to 700mA, making it suitable for a wide range of applications from powering individual ICs to complete systems.
• Quiescent Current: Extremely low, typically 5µA in shutdown mode, which helps to extend battery life in portable applications.
• Protection Features: Includes overcurrent protection, thermal shutdown, and reverse battery protection to ensure the regulator and your application remain safe under various conditions.
• Package: Available in TO-220, which is known for its robustness and ease of handling and mounting on a printed circuit board.

Applications

The LT1129CF-3.3 voltage regulator is versatile and can be used in a variety of applications. Its high efficiency and low quiescent current make it particularly well-suited for battery-powered devices. It can also be used in industrial controls, automotive electronics, and portable computing devices where power efficiency is critical.

Conclusion

Linear Technology's LT1129CF-3.3 is a reliable choice for designers looking for a high-performance, fixed-output voltage regulator. With its low dropout voltage, high output current capability, and robust protection features, this regulator ensures a stable power supply for your electronic applications.