AZ431AN-ATRE1 Integrated Circuits (ICs)

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The AZ431AN-ATRE1 is an adjustable shunt voltage reference component manufactured by Azoteq. This component is classified as a PMIC, specifically a voltage reference. It is a two terminal regulator with a low external component count, capable of providing an accurate, regulated output voltage of between 0.6V and 4.2V with an output current up to 100mA. It can be used in a variety of applications, including analog-to-digital converters, digital-to-analog converters, reference dividers, audio amplifiers, and power management modules.

The AZ431AN-ATRE1 provides up to 3.5% initial accuracy, and can be adjusted via an external resistor network or digitally with a PWM signal. It can operate over an input voltage range of 3.0V to 30V and over an operating temperature range of -40°C to +125°C. Furthermore, it has a low power consumption of less than 2 μA and does not require an external bypass capacitor for stability. The component also features a low temperature coefficient, high PSRR, and fast response.

The AZ431AN-ATRE1\'s working principle is based on a shunt feedback configuration using a VBE multiplier circuit. In this configuration, a reference voltage is provided to the VBE multiplier. The VBE multiplier then provides a voltage output that can be adjusted using the external resistor network. The output voltage is then regulated to the desired value by a shunt regulator, which senses the output voltage and adjusts the current passing through the shunt to maintain the output voltage at the desired value.

The AZ431AN-ATRE1 is particularly well-suited for applications where a low-cost, low-power, robust, and accurate voltage reference is required. It can be used in a variety of applications including temperature sensors, voltage references for A/D and D/A converters, on-board power regulators, active filters, and distributed supply regulation architectures. Furthermore, the adjustable output voltage of this device makes it a good choice for power conversion and regulation systems, where variations in the load and supply voltages need to be accounted for.

In summary, the AZ431AN-ATRE1 is a shunt voltage reference component manufactured by Azoteq, classified as a PMIC, specifically a voltage reference. It has a low external component count, low power consumption, adjustable output voltage, and can provide high accuracy, making it well-suited for a variety of applications. Its working principle is based on a shunt feedback configuration using a VBE multiplier circuit.

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