L78M05CDT

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The L78M05CDT series of three-terminal positive voltage regulators is one of the most commonly used linear voltage regulators. It provides high output voltage accuracy and low power consumption, making it ideal for a variety of applications. It is available in a wide range of output voltages, from 2.7V to 16V. It utilizes an internally trimmed bandgap reference which provides good voltage accuracy, line regulation, and load regulation.

The L78M05CDT is designed primarily for circuit-boards and as replacement of older, bulkier components. It is suitable for use in a wide range of power supplies, including power supplies in automotive, computer, and communication systems.

The L78M05CDT is available in the 7-pin TO-220 and 5-pin SOT-89 package. It has an input voltage of 4.75V to 40V and an output voltage of ±2.5%. It has a maximum output current of 500mA and a low internal temperature coefficient, making it ideal for use in temperature-sensitive applications. It features a thermal overload and short circuit protection, as well as reverse battery and error-amplifier protection.

The working principle of the L78M05CDT is fairly simple. It is based on the voltage regulator integrated circuit (IC), which uses an internally trimmed bandgap reference. The bandgap reference is used to provide the output voltage, which is then monitored by the error amplifier and fed back to the input of the IC. This feedback loop regulates an output voltage, which will remain constant regardless of variations in current or load.

When power is applied to the regulator, the circuit will calibrate and maximize the output, thus providing the user with a stable output voltage. The regulator also includes a thermal shutdown feature, which will turn off the regulator when the voltage exceeds the set safety limits, thus protecting the components from damage caused by excessive heat.

The L78M05CDT voltage regulator is an ideal choice for a variety of applications. Its wide output voltage range and excellent accuracy make it suitable for use in automotive, computer, and communication systems. Its low power consumption and small size make it suitable for small portable devices. The built-in thermal protection allows it to be used in temperature-sensitive applications. Its reverse battery and error amplifier protection make it an ideal choice for high reliability applications. Overall, the L78M05CDT voltage regulator is an excellent choice for a variety of applications.

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