REG101NA-A/250 Integrated Circuits (ICs)

REG101NA-A/250 Application Field and Working Principle

REG101NA-A/250 is an efficient, low-cost linear voltage regulator that features a high current output of 250mA and an operating temperature range from -40 degrees Celsius to +125 degrees Celsius. It is primarily used in applications where low input voltages are desired and where efficiency is paramount. This regulator also provides a variety of protection features, including over-voltage, over-current, and thermal shutdown. The REG101NA-A/250 is well-suited for use in automotive, industrial, medical, military, and aerospace applications.

Features and Benefits

The REG101NA-A/250 is a highly efficient linear voltage regulator, offering the popular ADJ output and a maximum quiescent current (IQ) of 150 µA at 1.5V. Output up to 250mA is available, making it well-suited for applications that require high current outputs. The REG101NA-A/250 also boasts excellent temperature stability, minimal output voltage noise, and fast transient response. This regulator is also protected from reverse voltage input and output short-circuits, and features a range of in-rush current protection, allowing it to be used safely in a variety of applications.

Application Field

Due to its high current output, the REG101NA-A/250 is a popular choice in automotive, industrial, medical, military, and aerospace applications. It is an excellent choice for applications that require a reliable and efficient voltage regulator, such as automotive electronic control units, microcontrollers, industrial equipment, and embedded systems. This regulator is a good choice for application where low input voltages are desired, and where efficiency and temperature stability are of paramount importance.

Working Principle

The working principle of the REG101NA-A/250 linear regulator is based on the principle of using a resistive divider for pass control. The output voltage is controlled by a series of transistors, found in the error amplifier, that form a resistive feedback loop. The output voltage is set by the resistors connected to the reference voltage terminal. The error amplifier compares the reference voltage (REF) with the voltage at the output of the regulator, known as the feedback voltage (FB). When the two voltages differ, the error amplifier adjusts the pass current to allow the output voltage to reach its desired state.

A series of resistors sets the maximum current that the regulator, or pass element, can deliver, limiting the output current of the regulator. Another series of resistors and diodes connects the REG101NA-A/250 to the input voltage and protects it from reverse-voltage surges.

The REG101NA-A/250 also includes a range of protection features, including over-current, over-voltage and thermal shutdown, which act to protect the device and its applications from damage in the event of a fault. These features ensure the stability and reliability of the regulator.

Conclusion

The REG101NA-A/250 is an efficient high-current linear voltage regulator, well-suited for automotive, medical, military and aerospace applications. This regulator features a high current output of 250mA and an operating temperature range from -40 degrees Celsius to +125 degrees Celsius, making it an ideal choice for applications where efficiency and temperature stability are of paramount importance. With its variety of protection features, the REG101NA-A/250 is a reliable and safe solution for your voltage regulation needs.