LT1117CM-5#PBF - Linear Technology

The LT1117CM-5#PBF is a robust low dropout positive fixed 5V voltage regulator designed by Linear Technology, now part of Analog Devices. It is a versatile component that offers a simple solution for providing a stable 5V output from a higher voltage input. This regulator is particularly suitable for applications requiring up to 800mA of output current.

This device features an adjustable version that can set the output voltage from 1.25V to 13.8V with only two external resistors. In applications requiring a fixed 5V output, no external resistors are needed.

The LT1117CM-5#PBF comes in a TO-263 package, which is known for its good heat sinking capabilities. This makes it an excellent choice for applications where the regulator must operate in a higher temperature environment or where the power dissipation is significant.

The dropout voltage of the LT1117CM-5#PBF is typically 1.15V at a 800mA load, which allows for efficient operation even when the input voltage is relatively close to the output voltage. This low dropout voltage combined with a low quiescent current makes the LT1117CM-5#PBF an energy-efficient solution for battery-powered devices.

Protection features of this voltage regulator include overcurrent and overtemperature protection, ensuring the reliability and longevity of both the regulator and the application it is used in. The device also has the ability to remain in full regulation during transient load changes, which is crucial for maintaining a stable voltage supply in dynamic systems.

In summary, the LT1117CM-5#PBF from Linear Technology is a dependable and efficient fixed voltage regulator, ideal for a wide range of applications including but not limited to consumer electronics, computer peripherals, and active SCSI terminators. Its easy-to-use package, low dropout performance, and protection features make it a go-to choice for designers looking for a reliable power management solution.