ADP7118ARDZ-3.3-R7

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ADP7118ARDZ-3.3-R7 is a linear, adjustable, low-voltage, low-dropout, general-purpose regulator. It is a three-terminal device and offers up to 1A output current. As compared to other linear regulators, this device is suitable for a wide range of voltage, input and output applications. It is frequently used for point-of-load circuit designs, where its low dropout characteristics become beneficial.

The ADP7118ARDZ-3.3-R7 is an adjustable, high-performance, low-dropout, general-purpose linear regulator. It features a wide range of adjustable output voltage (1.0 V to 24.5 V), low quiescent current, low dropout voltage, high output current capability, and fast transient response. This device is widely used in consumer electronics, medical and industrial applications for both line and load regulation. It is also suitable for portable applications, due to its low quiescent current.

The device consists of an output voltage divider, an error amplifier, a current limiter, and other circuit components to produce a regulated output voltage. The voltage is monitored by the control circuitry at the output of the device. When the output voltage is out of regulation, the control circuitry adjusts the output voltage by adjusting the power dissipation in the device. This power dissipation is known as the dropout voltage, or the voltage drop across the device when it is operating in the linear region.

The working principle of the ADP7118ARDZ-3.3-R7 is based on adjusting the power dissipation in the linear region. This power dissipation is regulated by the voltage divider. An error amplifier compares the output voltage to a reference and adjusts the gate drive current to the transistor. This gate current increases or decreases the power dissipation of the device, depending on the control voltage of the error amplifier. The current limiter prevents excessive current from the output.

The ADP7118ARDZ-3.3-R7 is also designed to operate from battery sources. It is typically used in regulated DC power systems. The wide range of adjustable output voltage is suitable for most system needs. For high load currents, the device can be set to operate in a higher voltage range, reducing power dissipation and providing a regulated output. Its dropout voltage is very low and its current delivery capability is excellent even under heavy loading, making it an ideal solution for battery operated applications.

In summary, the ADP7118ARDZ-3.3-R7 is a general-purpose, linear regulator. It features low quiescent current, low dropout voltage and is capable of driving a wide range of output voltages. This device is suitable for a variety of applications such as DC power supplies, portable electronics and systems that require a regulated output or line regulation. Its low dropout voltage makes it ideal for battery operated systems. The working principle of the device is based on the linear region of the device and its power dissipation is regulated by the voltage divider, error amplifier and current limiter.

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