REG1117F-3.3/500

REG1117F-3.3/500 is a popular voltage regulator module from Texas Instruments. It is among the Linear voltage regulator modules from the PMIC (Power Management ICs) range. The REG1117F-3.3/500 is a two-terminal, adjustable 3.3V voltage regulator. It is designed for use in any applications requiring a regulated 3.3V supply.

Application Field

The REG1117F-3.3/500 voltage regulator is an ideal choice for use in any 3.3V application including programming and testing boards, peripherals, interfacing PC motherboards, and other voltage-regulated applications. It can be used in automotive instrument clusters or sensing systems and also portable instrumentation or test equipment. With its wide input voltage range and low current consumption, it makes an ideal choice for use in automotive and industrial applications.

Working Principle

The REG1117F-3.3/500 voltage regulator module is designed with a special technology called direct pass-transistor. This technology enables the device to deliver a regulated output voltage without the need of an extra transistor. The regulator\'s output voltage is determined by the external resistor and diode connected to its two inputs, the Pin 1 and Pin 2 contacts. The output voltage is controlled by the ratio of the current through the resistor and the voltage drop across the diode. The output can be varied from 0V to 3.3V by simply changing the voltage of the diode.

The REG1117F-3.3/500 also includes a short-circuit protection, which shuts off the output if the load current exceeds the set limit. The device also has a built-in thermal shutdown to protect it against excessive current and over temperature. This protection feature helps protect the device from damage caused by external events. The REG1117F-3.3/500 voltage regulator also has protection against reverse current.

Conclusion

The REG1117F-3.3/500 voltage regulator module from Texas Instruments is a two-terminal, adjustable 3.3V voltage regulator. It is designed with a direct pass-transistor technology, enabling a regulated output voltage without an extra transistor. The device has various protective features such as short-circuit protection and thermal overload and reverse current protection. It is thus an ideal choice for use in automotive instrument clusters and sensing systems, programming and testing boards, and other 3.3V applications.