L78L05ACD

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The L78L05ACD is a standard 5-volt, three-terminal, positive voltage regulator containing one series pass element, current limiting, and thermal regulation protection. It is available in TO-92 and SOT-89 packages. This integrated three-terminal regulator is non-isolated and therefore can be used in various applications where it can provide a source of a regulated voltage up to 5 volts and a maximum current of 100mA.

The L78L05ACD regulator makes a valuable addition to any design where the need for a reliable source of regulated 5V power is essential. It can be seen used in many areas such as computers, notebooks, modems, communications equipment, audio systems, automotive electronics, and other electronic devices.

The L78L05ACD is a three-terminal regulator which employs internal current limiting. This can be used to restrict current consumption to no more than 100mA. There are two Zener diodes connected in reverse breakdown configuration from the adjustment pin and output terminal, these will provide a maximum of 5 volts at regulated output.

When an unregulated input voltage is applied to the input terminal, the power transistor is turned on and a minimal amount of current flows through the resistors connected to the output terminal. The voltage drop across these resistors causes the output voltage to become voltage-regulated.

This three pin regulator is designed to provide up to 5 volts at load currents up to 100mA and typically exhibit very low noise and low output voltage ripple. With its low voltage dropout and line regulation, the L78L05ACD can be used in most applications which require a low voltage dropout regulator to maintain a regulated 5 volts output.

The L78L05ACD regulator has a quiescent current of about 50mA and a standby current of 10mA. It includes a current limit protection which will protect it from excessive current draw. An internal thermal overload protection circuit is also included to provide protection against thermal runaway conditions.

The L78L05ACD regulator can be used in a number of applications depending upon its current limit and thermal protection characteristics. In applications such as a power supply, it can be used to regulate the DC output voltage up to +5V. In automotive and industrial electronics, it can be used to prevent malfunctions due to power fluctuations. The low quiescent current of the regulator makes it suitable for battery operated applications, in which it can be used to power any load up to the rated current.

The L78L05ACD is an ideal choice for applications where the need for a reliable source of regulated 5V power is essential. Its low current draw, thermal protection and current limiting makes it a great addition to any design. It is available in both TO-92 and SOT-89 packages and can be used for a wide variety of applications.

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