KA78L05AZBU

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The KA78L05AZBU linear voltage regulator is a basic three-terminal positive voltage regulator. It\'s designed to offer an output of 5V and a stabilizing current of 100mA. This chip is ideal for basic power regulation and low power systems.

KAL78L05AZBU Application Field

This voltage regulator can be used in a variety of applications such as battery operated systems, advanced telecom and communication equipment, low-power industrial, automotive and consumer electronics. KA78L05AZBU, is mainly used in battery powered system to provide regulated 5V output. It is also used in industrial control with limited space. KA78L05AZBU is highly suitable for mobile applications as well.

KA78L05AZBU Working Principle

This regulator operates on a principle of regulating the output voltage through an integrated voltage differential amplifier and an error amplifier. It operates by sensing the voltage drop across a series of resistors connected to the output and comparing it to a reference voltage. When the output voltage is outside the specified range, the voltage differential amplifier produces an error voltage which then drives the error amplifier which in turn adjusts the gate of a power transistor to maintain the output voltage within the specified range.

The KA78L05AZBU linear voltage regulator is designed to maintain an output voltage of 5V within a voltage range of 8 to 15V and stabilizing current of up to 100mA. The output voltage can be adjusted with external resistors to provide a precise level of regulation or for special applications. The KA78L05AZBU is also designed for use with low ESR capacitors.

The tolerance of the KA78L05AZBU is ±2% at room temperature. The temperature coefficient is 0.07%/°C with an operating temperature range of -40°C to +85°C. The input voltage range can be from 8 to 15V while the output voltage is held to within 5%.It has a quiescent current of 25mA, maximum peak current of 1A and dropout voltage of 1.2V.

The KA78L05AZBU has various protection features such as output voltage protection, thermal shutdown, and reverse current protection. The output voltage protection helps prevent reverse voltage from the input to the output and thermal shutdown helps prevent damage from excessive heat. The reverse current protection protects the device from being overloaded.

Conclusion

The KA78L05AZBU linear voltage regulator is a versatile three-terminal positive voltage regulator. It is ideal for use in battery powered systems, advanced telecom and communication equipment, low-power industrial, automotive and consumer electronics. It provides a regulated output voltage range of 8 to 15V and stabilizing current of up to 100mA. It is also designed for use with low ESR capacitors. It has various protection features such as output voltage protection, thermal shutdown and reverse current protection.

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