MC33275ST-3.3T3

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The MC33275ST-3.3T3 is a three-terminal linear voltage regulator designed for cost-sensitive general-purposes applications, offering very low dropout voltage and a wide input/output voltage range. It is a thermally enhanced three-pin adjustable and fixed voltage regulator with low dropout voltage and current limited protection. It is ideal for automotive, consumer and industrial applications.

The MC33275ST-3.3T3 is a low-dropout (LDO) linear voltage regulator, which is capable of providing a fixed output voltage ranging from 1.8V to 16V, given an input voltage between 2V and 20V. The MC33275ST-3.3T3 provides a maximum output current of 3A, depending on the output voltage and the thermal conditions, and features a low dropout voltage of 200mV. In addition, it is capable of withstanding a reverse current of up to 10mA.

The MC33275ST-3.3T3 is typically used in applications where a low-cost voltage regulator is needed, such as automotive, consumer and industrial applications. It provides a wide input/output voltage range and a low dropout voltage, making it ideal for use in applications that must operate with a wide range of input voltages. It can also be used in cost-sensitive regulated power supplies, where a low dropout voltage and high current output are required.

The MC33275ST-3.3T3 employs a linear voltage regulation mechanism, and works in accordance with Ohm’s law. It consists of a pass transistor and compensation circuitry which provide a stable output voltage. The pass transistor is a voltage-controlled device that acts as the main element of regulation. To regulate the voltage with a given amount of load current, a feedback circuit is used to adjust the gain of the pass transistor

This is accomplished by sensing the regulated output voltage and providing a feedback signal to the error amplifier. As the output voltage varies, the error amplifier adjusts the control of the pass transistor, which in turn modulates the output voltage of the regulator.

The MC33275ST-3.3T3 has built-in protection features, including short-circuit protection, current limiting protection and thermal shutdown. Short circuit protection will shut down the regulator if an overload is detected. Current limiting protection will limit the output current to a safe operating level. Finally, a built-in thermal shutdown circuit will shut down the regulator if the temperature of the surrounding environment exceeds a predetermined limit.

Overall, the MC33275ST-3.3T3 is an ideal solution for applications requiring low-cost linear voltage regulation. It offers a wide input/output voltage range, low dropout voltage, current limiting protection and thermal shutdown, making it well suited for automotive, consumer and industrial applications where low-cost voltage regulation is required.

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