KA79M15

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The KA79M15 is a three-terminal adjustable positive voltage regulator designed for a wide range of applications and operating conditions. It should have adequate input-to-output voltage differential, low temperature coefficient, output current capability and be easy to adjust in a well-defined range. The standard KA79M15 has a voltage range from 1.2V to 32V, a fixed output current of 1A, adjustable output current up to 1.5A, and a low output impedance.

The main application of KA79M15 is post-regulating power supply voltage, providing an integrated circuit and device with a highly stable voltage output, and it can be used as a programmable voltage regulator. In addition, the KA79M15 can be used to switch power, stabilize the voltage of the four 3V lithium rechargeable batteries, and even for portable device overcurrent protection. It is popularly used in portable power equipment, notebook power supplies and car power systems.

The KA79M15 is a linear voltage regulator, and its regulator pin is connected to the output of the precision voltage reference component to form a closed loop. The KA79M15 adjusts the output voltage by comparing the reference voltage with the voltage on the output pin, and then adjusts its own internal base current so that the voltage at the output pin is equal to the reference voltage. When the output voltage is lower than the reference voltage, the current flowing through the internal NPN transistor is reduced to reduce the output voltage.

In addition, the KA79M15 can also detect and limit the current output of the device, and prevent the device from overloading when the external load is stable. Bipolar transistors are used in the control circuit, which can transmit fast response signals and reduce interference from other circuits.

In summary, the KA79M15 is a three-terminal adjustable voltage regulator of a linear voltage regulating device with a wide application range. Its ability to regulate input and output voltage, low output impedance and current limit design makes it ideal for many power control applications.

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