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PMIC - Voltage Regulators - Linear

AP7342D-2812FS6-7
A voltage regulator is a device used to maintain the output voltage and current of a power supply at a constant level over its operating range, regardless of the load. The AP7342D-2812FS6-7 is a linear voltage regulator that takes an input voltage and provides an output voltage as specified by the user.

Application Field

The AP7342D-2812FS6-7 is a voltage regulator that is primarily used in portable, battery-powered devices. Its low quiescent current ensures that the device can operate for longer periods, even when powered by low-power sources. The device is also designed to be space efficient, making it an ideal choice for applications in which size and space are restricted.

Working Principle

The AP7342D-2812FS6-7 works in a “linear-regulator” mode, which means it utilizes a voltage divider along with an error amplifier that amplifies the voltage difference between the input and output setpoints and then generates a current-regulating signal. This signal is then used to directly control the series transistor that allows the current to flow from the input to the output. The series transistor also serves as a safety measure, limiting the output current to the set point. This ensures that the device does not draw excessive current from the input source.

The AP7342D-2812FS6-7 has a few advanced features that make it even more energy-efficient and user-friendly. It can be used with external components like resistors, diodes, and capacitors to ensure a clean and stable output voltage. Additionally, the device is designed to be very efficient, so there is minimal power wasted during voltage regulation.

Conclusion

The AP7342D-2812FS6-7 is a linear voltage regulator that is suitable for use in portable, battery-powered devices. Its low quiescent current, space-efficiency, and high-efficiency make it an ideal choice for applications in which size and power consumption are restricted. It utilizes an error amplifier to regulate current from its input to its output and can be used with external components for added stability and protection.

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