The LD1117D33 is a robust and reliable low-dropout voltage regulator from STMicroelectronics, designed to provide a fixed 3.3V output with a maximum current of 800mA. This component is a popular choice for a wide range of applications that require a stable and efficient power supply, including consumer electronics, computer peripherals, and industrial equipment.

Key Features

• Output Voltage: Fixed at 3.3V, making it suitable for powering 3.3V logic devices and microcontrollers.
• High Efficiency: Low dropout voltage typically around 1V at maximum output current, ensuring efficient operation even at close input-output voltage differentials.
• Output Current: Capable of delivering up to 800mA, sufficient for a variety of moderate consumption devices.
• Thermal Overload Protection: Built-in thermal shutdown and current limiting features protect the device from damage due to overheating and overcurrent conditions.
• Low Noise: Offers excellent regulation and low output noise, making it ideal for sensitive applications like RF circuits.
• Wide Operating Temperature Range: Can operate over a temperature range from -40°C to 125°C, suitable for industrial and automotive environments.

Applications

The LD1117D33 is versatile and can be used in various applications, such as:

• Power supplies for battery-powered devices
• Post-regulation for switching supplies
• Microcontroller power supplies
• Peripheral power supplies
• Portable electronics

Package and Quality

This voltage regulator comes in a TO-220 package, which is known for its ability to handle higher power levels and its ease of mounting on printed circuit boards. STMicroelectronics ensures high standards of quality and reliability for the LD1117D33, making it a safe and secure choice for your power regulation needs.