AZ39150S-3.3TRE1

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The AZ39150S-3.3TRE1 is a linear voltage regulator designed for various applications including automotive, medical, communications, and consumer applications. The regulator is designed for use in step-down, or buck, regulation with input voltage ranges of 5.0V to 26.0V and output voltage of 3.3V with a current load capability of up to 3A. The AZ39150S-3.3TRE1 utilizes an internal PNP-based NPN pass element, which allows them to achieve high output current levels with a minimum of power dissipation.

The AZ39150S-3.3TRE1 features low dropout voltage and high efficiency, making it ideal for automotive and high current, low voltage applications. The regulator\'s PNP-based NPN pass element offers enhanced load regulation and output current stability over temperature, allowing the device to maintain its output voltage even under extreme load conditions.

The AZ39150S-3.3TRE1 utilizes a proprietary foldback current limiting circuitry to protect against faults, reducing the chances of the regulator being damaged by short circuits. The internal foldback circuit increases its ratings gradually as the load current increases to prevent shutdown for light load or no-load conditions. The foldback current limiter also provides thermal protection, limiting the device’s maximum junction temperature.

The AZ39150S-3.3TRE1 also features built-in soft-start circuitry. When power is applied to the device, the output voltage is regulated at a progressively higher voltage to prevent inrush current overloads. This feature also helps reduce start-up time and reduces the required input bypass capacitance.

The AZ39150S-3.3TRE1 offers enhanced EMI and transient protection by incorporating a reverse biased substrate diode, which activates if the output voltage is higher than the input voltage. This diode provides a path to allow the output to be loaded and clamped quickly, thereby reducing the chances of the output voltage exceeding the input voltage.

The AZ39150S-3.3TRE1 is designed to be used with a step-down, or buck, regulator topology. In this topology, the regulator’s input voltage is greater than its output voltage, allowing the regulator to step-down, or buck, voltage as current is passed through the device. The regulator operates as a series regulator, meaning that the output current is proportional to the input current, allowing the device to maintain a constant output voltage while the load changes.

The AZ39150S-3.3TRE1 is designed to provide an accurate and reliable linear voltage regulation and protection solution for various applications. The internal circuitry of the device and built-in protection features provide enhanced efficiency, stability, and transient protection, making the AZ39150S-3.3TRE1 suitable for automotive, medical, communications, and consumer applications.

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