Linear Technology's LT1117IST-5 Voltage Regulator

The LT1117IST-5 is a robust fixed voltage regulator from Linear Technology, designed to provide a stable 5V output with a wide input voltage range. This low dropout regulator (LDO) is an ideal solution for a variety of applications that require a reliable power supply with minimal voltage variation.

Key Features

• Output Voltage: Fixed at 5V, providing a stable supply for 5V logic circuits and other standard 5V-operated devices.
• Dropout Voltage: Low dropout performance, typically 1.2V at full load, allowing for efficient operation even with minimal difference between input and output voltages.
• Output Current: Capable of delivering up to 800mA of output current, making it suitable for powering a wide range of components.
• Package: Available in a compact SOT-223 package, which is ideal for space-constrained applications.
• Protection Features: Includes built-in overcurrent and over-temperature protection to safeguard the device and the connected load under abnormal conditions.

Applications

The LT1117IST-5 is versatile and can be used in various electronic systems, including:

• Portable devices
• Microprocessor supply
• Peripheral power
• Post-regulation for switching supplies

Performance and Reliability

Linear Technology's LT1117IST-5 is designed with performance and reliability in mind. Its low dropout voltage ensures efficient operation, reducing power loss and heat generation. This, combined with protection features, ensures a long operational lifespan and stable performance even in challenging conditions.

Easy Integration

With its fixed 5V output and ability to handle up to 800mA of current, the LT1117IST-5 is ready to be integrated into a variety of circuits without the need for additional external components. Its SOT-223 package is not only space-efficient but also easy to handle in terms of PCB layout and thermal management.

In conclusion, the LT1117IST-5 from Linear Technology is a reliable and efficient solution for applications requiring a stable 5V supply. Its combination of low dropout voltage, high output current capability, and robust protection features make it an excellent choice for designers looking to enhance the performance and reliability of their power supply designs.