L7912CV-DG

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The L7912CV-DG is a three-terminal Positive-Voltage Regulator ideally suited for a wide range of applications, such as battery-powered systems, pc boards and portable equipment. It is designed to provide output currents up to 1.5 A with an input-output differential of up to 40V. The L7912CV-DG features an integrated thermal overload protection feature that simply increases the on-resistance of the device when the junction temperature exceeds 125°C, which helps to prevent it from becoming damaged or burned out. It also includes a reverse-blocking feature that prevents the output current from flowing back into the input when the input voltage is lower than the output voltage.

Application Field:

The L7912CV-DG is useful in many applications where a constant output voltage is needed. For example, it can be used in lighting, audio equipment and many other circuits requiring low-voltage regulation. As far as electrical and electronic equipment goes, this device is ideal for battery-powered systems, pc boards and portable equipment since it offers an efficient solution for supplying a regulated voltage of up to 40V at 1.5A output current.

Working Principle:

The L7912CV-DG works on the principle of a three-terminal positive linear voltage regulator. It is designed to provide a constant output voltage of up to 40V, regardless of the load and other fluctuations in input voltage. This is achieved by using a voltage reference, error amplifier, and pass element controlled by the error amplifier. The voltage reference and error amplifier together maintain the output voltage at a constant level and adjust it in accordance with the fluctuations in the input voltage, while the pass element is used to control the current flow.

The L7912CV-DG has a built-in thermal shutdown feature that helps prevent the device from becoming damaged or burned out in case of over-temperature operation. It also provides reverse voltage blocking protection to prevent current from flowing from the output to the input in case the input voltage is lower than the output voltage.

Conclusion:

The L7912CV-DG is a three-terminal positive-voltage regulator ideal for a wide range of applications, such as battery-powered systems, pc boards, portable equipment, and other circuits requiring low-voltage regulation. The device offers a regulated voltage of up to 40V at 1.5A output current and is protected from over-temperature operation and reverse voltage blocking. It operates on the principle of a three-terminal positive linear voltage regulator, using a voltage reference, an error amplifier, and a pass element to provide a constant output voltage. The L7912CV-DG is an excellent choice for applications requiring efficient and reliable power regulation.

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