LM7905CT/NOPB

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The LM7905CT/NOPB is an integrated Linear Voltage Regulator, designed to provide a regulated negative power supply from a positive or an alternate negative supply. It is among the most popular negative voltage regulators available in the market today. The LM7905CT/NOPB offers a wide range of features and benefits for a wide range of applications and is capable of producing a variable negative voltage ranging from -0.4V to -15V.

One of the key features of the LM7905CT/NOPB is its built-in protection from short circuit and overload conditions. This ensures that the output voltage remains within the specified range. The device also includes thermal shutdown and current limiting protection, which ensure that the device is safe against any sudden overloads.

The LM7905CT/NOPB offers multiple options for its power input voltage, ranging from 7V to 20V. The output voltage is also adjustable, with a negative voltage ranging from -0.4V to -15V. The device is capable of delivering up to 1A of output current with a low dropout voltage of 1.2V. This makes the device suitable for a wide range of applications, such as powering negative voltage rails for microcontrollers, audio amplifiers, and other power sensitive applications.

The device works by using a series of discrete components sandwiched between two output terminals. The series of components is connected to a voltage reference terminal, which is set to the desired output voltage. An error amplifier is used to compare the voltage reference to the feedback voltage from the output terminals. Any discrepancy in the voltage will cause the error amplifier to adjust the output voltage to equal the desired output voltage. The device is usually configured with a feedback resistor, which is responsible for absorbing any transient response caused by a sudden load change.

In conclusion, the LM7905CT/NOPB is an ideal linear voltage regulator for applications requiring a negative voltage output. The device is capable of delivering a wide range of output voltages and current with a low dropout voltage. Additionally, the LM7905CT/NOPB offers built-in protection from overcurrent, overvoltage, and short-circuit conditions, making it a reliable and safe voltage regulator for many applications.

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