STMicroelectronics

LD1117V33-DG

LD1117V33-DG Description

The LD1117V33-DG is a linear voltage regulator IC produced by STMicroelectronics. It is designed to provide a fixed output voltage of 3.3V with an output current capability of 800mA. This device is housed in a through-hole TO220AB package, making it suitable for a variety of applications where a robust and reliable voltage regulation is required. Despite being classified as obsolete, it remains a popular choice for its performance and reliability.

LD1117V33-DG Features

• Fixed Output Voltage: The LD1117V33-DG offers a stable 3.3V output, which is ideal for applications requiring a consistent power supply.
• High Output Current: With an output current of 800mA, it can handle a wide range of electronic devices and systems.
• Low Dropout Voltage: The maximum dropout voltage is 1.2V at 800mA, ensuring efficient operation even under heavy load.
• Single Regulator Configuration: Simplifies design with only one output stage.
• Positive Output Configuration: Facilitates straightforward integration into positive voltage systems.
• Robust Protection: Incorporates over current and over temperature protection to safeguard the device and connected components.
• Compliance and Standards: RoHS3 compliant and REACH unaffected, ensuring environmental and health safety standards are met.
• Operating Temperature Range: Capable of operating in a wide temperature range from 0°C to 125°C, making it suitable for various environments.

LD1117V33-DG Applications

The LD1117V33-DG is well-suited for applications where a stable and reliable 3.3V power supply is needed. Some specific use cases include:

• Portable Electronics: Due to its low quiescent current of 10mA, it is ideal for battery-powered devices.
• Industrial Controls: The wide operating temperature range makes it suitable for use in industrial settings with varying environmental conditions.
• Telecommunications: Reliable voltage regulation is crucial in telecommunications equipment, and this IC can provide that stability.
• Automotive Electronics: The LD1117V33-DG can be used in automotive applications where a stable power supply is essential.

Conclusion of LD1117V33-DG

While the LD1117V33-DG is classified as obsolete, it continues to be a preferred choice for its performance, reliability, and the unique combination of features it offers. Its fixed 3.3V output, high current capability, and robust protection features make it an excellent choice for a variety of applications in the electronics industry. Despite its age, it remains a reliable component for designers who require a stable and efficient voltage regulator.