KA7818ETU

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The KA7818ETU is a linear 3-terminal voltage regulator from Fairchild Semiconductor. It provides high accuracy, low power consumption and excellent temperature stability for a variety of applications. It is available in a TO-220 package.

The KA7818ETU Linear voltage regulator can provide a steady power supply to the circuits that need stable power output in a variety of applications. Through the adjustment of the resistor at the adjustment terminal, the output voltage of the regulator can be adjusted within the specified voltage range without additional components. With a high accuracy, low quiescent current and excellent temperature stability, it can support the design of power supply circuits that require long-term stability.

The KA7818ETU is specifically designed for low-power applications. It has a wide output current range and high surge current capability, providing excellent load and line regulation. Its low output noise voltage makes it suitable for driving low-noise circuits such as audio amplifiers. The operating temperature range of -40°C to +125°C makes it suitable for a variety of control and power management circuit designs.

The operation of the KA7818ETU linear voltage regulator is based on a ‘follow the leader’ principle. The output voltage is controlled by an external resistive divider connected between the output and the adjustment pin. The output voltage is set to hold the voltage at the adjustment terminal equal to the reference voltage of 1.2V. As the output voltage increases, current flows through the resistors and the voltage at the adjustment pin increases. The voltage regulator senses this and reduces the output voltage in order to maintain the voltage at the adjustment pin at the reference voltage of 1.2V.

This feature makes the KA7818ETU Linear Voltage Regulator ideal for precision reference applications such as industrial systems, telecommunications, and computer peripherals. Its excellent temperature stability and low power consumption make it particularly useful for battery-powered applications such as laptop and notebook computer power supplies. In addition, its low output noise voltage makes it ideal for audio applications.

The KA7818ETU Linear Voltage Regulator is an ideal solution for applications that require a stable and accurate output voltage. It offers excellent temperature stability, low power consumption, high accuracy and excellent surge current capability. Its simple design and adjustable output voltage make it a versatile solution for a variety of control and power management circuit designs.

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