STMicroelectronics LD1117S25TR Voltage Regulator

The LD1117S25TR from STMicroelectronics is a robust low drop voltage regulator capable of providing up to 800 mA of output current. This product is designed to provide a stable 2.5V output voltage with a minimal voltage drop, making it an ideal choice for a wide range of applications, including on-board post-regulation for switching supplies.

Key Features

• Low Dropout Voltage: The LD1117S25TR boasts a low dropout voltage of typically 1.2V at up to 800mA load, ensuring efficient operation even under conditions of varying input voltage and load.
• Output Current up to 800 mA: This voltage regulator is capable of sourcing up to 800 mA, making it suitable for high current applications.
• Fixed Output Voltage: It provides a fixed output voltage of 2.5V, which is precise and stable, ensuring reliable operation for sensitive electronic circuits.
• Adjustable Versions: While this model provides a fixed output, the LD1117 series also includes adjustable versions for a custom voltage output.
• Thermal Overload Protection: The device includes built-in thermal overload protection that shuts down the output if the temperature exceeds the maximum safe operating limits, thereby protecting the device from damage.
• Short Circuit Protection: The LD1117S25TR also features short circuit protection, enhancing the reliability and longevity of both the regulator and the powered device.
• Low Ground Current: Its low ground current characteristic makes it an excellent choice for battery-powered applications where extending battery life is crucial.
• SOT-223 Package: Encased in a SOT-223 package, it is not only compact but also easy to handle in high-volume manufacturing.

Applications

The LD1117S25TR is versatile and can be used in various electronic applications, such as:

• Portable devices
• Microcontroller power supply
• Peripheral drivers
• PC add-on cards

With its combination of features, the LD1117S25TR is a reliable choice for designers looking for a voltage regulator that offers both performance and protection for their sensitive electronic systems.