REG101UA-A/2K5

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The REG101UA-A/2K5 is a low-dropout linear voltage regulator providing adjustable and high accuracy output voltage with a typical dropout voltage of 200mV at 1A output current. It is a member of the Texas Instruments linear voltage regulator family, which has been highly regarded as a cost-effective and reliable solution for many applications. The REG101UA-A/2K5 is designed to operate with a wide input voltage range of 2V to 12V, providing both adjustable and fixed voltage outputs ranging from 1.3V to 10V. The output voltage is actively regulated and maintained within a tolerance of ±2.5%.

The REG101UA-A/2K5 is available in a three-pin SOT-223 package, making it suitable for use in space-constrained applications. Its protection features and low dropout voltage also offer improved performance and reliability. The REG101UA-A/2K5 comes with current limiting protection, an over-temperature protection and an over-voltage protection. The current limiting protection prevents the IC from being overcurrent and the over-temperature protection prevents the device from going damages in high-temperature environment. In addition, the device also provides an optional over-voltage protection feature for added safety.

The REG101UA-A/2K5 can be used in a variety of applications such as computers, consumer electronics, industrial and telecommunication equipment, automotive systems and so on. It is particularly suitable for applications where high efficiency and low noise are needed, such as LED lighting applications, displays and switching power supplies. It also provides a stable output voltage for high-current applications such as audio amplifiers.

The REG101UA-A/2K5 works on the principle of controlling the voltage flow through a pass transistor. The device is designed to operate with a P-channel MOSFET, which functions as a variable resistor to control and maintain the output voltage. The input voltage is connected to the gate of the MOSFET, and the output voltage is connected to the source. When the gate voltage is increased, the resistance of the transistor decreases, allowing more current to flow from the input to the output. As the output voltage of the regulator increases, the gate voltage is correspondingly decreased to maintain the output voltage at a steady level.

In short, the REG101UA-A/2K5 is a low-dropout linear voltage regulator providing adjustable and high accuracy output voltage with a typical dropout voltage of 200mV at 1A output current. It is suitable for many applications where high efficiency and low noise are needed. Its protection features and low dropout voltage make it a cost-effective and reliable solution. It works on the principle of controlling the voltage flow through a pass transistor.

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