The REG113NA-3.3 is a high-performance, low-dropout voltage regulator from Texas Instruments, designed to deliver a fixed output of 3.3 volts. This compact and efficient regulator is an ideal power management solution for a wide range of applications, offering a maximum output current of 400 mA. The REG113NA-3.3 is part of a family of regulators that are known for their low dropout voltage, which means they can maintain a stable output voltage even when the input voltage is very close to the output voltage.

Key Features

• Low Dropout: The REG113NA-3.3 boasts a very low dropout voltage, typically 180 mV at full load, which enhances its efficiency and allows for better performance in battery-powered devices.
• High Accuracy: This regulator provides an output voltage with high accuracy, ensuring reliable performance and stability for sensitive electronic circuits.
• Low Noise: It features a low output noise of 33 µVRMS, making it suitable for RF and other noise-sensitive applications.
• Thermal and Overcurrent Protection: The device includes built-in thermal shutdown and overcurrent protection features to safeguard the regulator and the downstream components from damage due to excessive heat or current.
• Fast Transient Response: The REG113NA-3.3 is designed to have a fast transient response, which is essential for applications that experience rapid changes in load.

Applications

With its robust feature set, the REG113NA-3.3 is well-suited for a variety of applications, including but not limited to:

• Battery-powered devices
• Portable and handheld equipment
• Microcontroller power supply
• Reference voltage sources
• Analog and digital circuits requiring low noise

Package and Availability

The REG113NA-3.3 is available in a small SOT-23 package, which is suitable for space-constrained applications. This product is widely available and can be ordered directly from Texas Instruments or through authorized distributors.