MC78L05F-TP

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The MC78L05F-TP is a three terminal voltage regulator with an adjustable output. It belongs to the linear voltage regulator family from PMIC, Voltage Regulators. It is an active low dropout (LDO) linear regulator with an output current of 100 mA and a voltage range of 1.3 V to 18 V.

The main function of the MC78L05F-TP is to provide a precise fixed output voltage with low noise and fast transient response based on the input voltage. It achieves this by taking the input voltage and regulating it down to a predictable output voltage. The device can be used as a reference voltage source, Post-Regulator and as a low noise DC to DC converter.

The MC78L05F-TP is designed to meet the needs of battery-powered systems and also offers excellent accuracy and line and load regulation. The device has a shut-down function which enables a power regulator to remain in a standby mode until needed. It also has an over-current protection feature which helps to protect the device from excessive current.

The MC78L05F-TP provides a thermal shutdown diagnostic signal which turns off the output when a certain temperature is reached. This helps to prevent overtemperature conditions. The device also has a reverse current protection feature which prevents a reverse current from damaging the device.

The MC78L05F-TP operates by employing a feedback loop to control the voltage. An input voltage is applied to the device and the integrated circuit drives the NPN pass transistor to deliver the precise output voltage. In order to prevent oscillations, the device incorporates an external resistor which is connected between the output and the feedback pin. The resistor adjusts the output voltage and helps to optimize the output stability. The MC78L05F-TP also features overload protection, current limiting and short circuit protection.

The MC78L05F-TP provides a wide variety of applications such as battery chargers, post regulators, industrial controllers and logic supply circuits. It is also ideal for use in portable communication and biomedical devices. The device is available in a TO-92 package which is small, robust and easy to mount.

In conclusion, the MC78L05F-TP is a versatile three terminal voltage regulator which provides an adjustable output voltage and excellent load regulation. The device has a low dropout voltage and wide input voltage range which makes it suitable for a variety of applications. It also features overload and current limiting protection as well as thermal and reverse current protection. The device is available in a tiny TO-92 package with a low price tag.

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