L78L09ACUTR

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The L78L09ACUTR is a three-terminal voltage regulator designed specifically to provide low-drop positive voltage and power supplies. The circuit contains a low-drop regulator and a series pass element with a very low current-output impedance, which allows it to provide a relatively constant output voltage with a wide range of input voltages. In addition, the circuit is temperature-compensated to ensure that the output voltage does not vary with load current. The voltage/current relationships for the L78L09ACUTR are specified over a range of load conditions and environmental temperatures.

Applications for the L78L09ACUTRvoltage regulator include personal and industrial computers, communication systems, and medical and laboratory equipment, as well as automotive, military and commercial applications. The device’s low-drop, low-noise characteristics make it highly suitable for powering transceivers, optical transceivers, wideband amplifiers, and many other similar components. It is also very efficient and can be used with a wide range of voltages.

The regulator can be used with a variety of input sources, including AC, DC, and switch mode power supplies. It is designed to provide a steady output voltage, even when the input voltage varies. The device also provides protection against overvoltage, overcurrent, reverse polarity, and thermal overload.

At the heart of the L78L09ACUTR lies an integrated circuit (IC) containing two main components: a voltage regulator and a series pass element. The voltage regulator is responsible for maintaining a constant voltage output. The series pass element serves to maintain a low-noise, low-drop output voltage, even when the input voltage changes. When a high current load is applied, the series pass element increases the voltage to ensure the output voltage remains constant.

The voltage regulator circuit is a voltage regulator IC (VR) which includes two transistors for controlling the output voltage and current. The pass element is used to reduce the voltage drop of the output voltage. The output voltage is maintained constant by a control circuit which senses the input voltage using feedback control.

The circuit also includes a zener diode to protect the circuit from overvoltage and an over temperature limiter to protect it from thermal overload. The output voltage is set through the output voltage adjust (VADJ) pin of the IC. An electrically programmable output enables users to select the output voltage needed for their applications.

In summary, the L78L09ACUTR is a voltage regulator designed specifically for low-drop positive voltage and power supplies. With its low-drop, low-noise characteristics, it is capable of providing a steady output voltage over a wide range of input voltages and load conditions. The device is also well-suited for a variety of applications, including personal and industrial computers, communications systems, automotive, military and commercial applications. Furthermore, it offers protection against overvoltage, overcurrent, reverse polarity, and thermal overload, making it a highly reliable choice for virtually any circuit design.

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