MIC2920A-3.3BS

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The MIC2920A-3.3BS is a low dropout, micropower voltage regulator designed to provide 3.3V power supply. It is part of the Linear Voltage Regulator category of Power Management Integrated Circuits (PMICs).

The power supply output of the MIC2920A-3.3BS is externally-adjustable, with a voltage range of 2.85 to 3.6V. The output source or sink current capability is 20mA, with a 10mA guaranteed minimum load. It features on-chip current and thermal protection, eliminating the need for external protection circuitry.

The MIC2920A-3.3BS has a high power supply rejection ratio of 95 dB, making it suitable for noisy systems. The regulator has a low quiescent current of 6 μA, and is available in the 8-pin µMAX package.

The MIC2920A-3.3BS’s application fields are as broad as any other three-terminal adjustable voltage regulator. It can be used to power industrial, consumer, automotive, and telecom systems, and it is an excellent choice for low-current applications. It can also be used in portable electronic devices, such as camera, mobile phones, and notebook computers.

The working principle of the MIC2920A-3.3BS is simple. It utilizes a P-channel MOSFET to regulate the output voltage. The output voltage is determined by a voltage reference and an external feedback circuit. The P-channel MOSFET is controlled by an error amplifier, which compares the feedback voltage with the voltage reference, to adjust the output voltage accordingly. The output voltage is also regulated by two current limit circuits, which protect the circuit from overloads.

The MIC2920A-3.3BS is a reliable, low voltage regulator with high efficiency and low dropout performance. Its wide range of applications make it a highly versatile device. It is also easy to implement, making it a great choice for those who require a low-cost, low-power voltage regulator.

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