ADP2140ACPZ3325R7

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PMIC - Voltage Regulators - Linear + Switching are used to control voltage associated with a number of electronic devices. This article will examine the application field and working principle of the ADP2140ACPZ3325R7 PMIC.

The ADP2140ACPZ3325R7 is a dual, low-dropout linear regulator that can operate in either the linear or switching mode. The switching regulator employs a pulse width modulation (PWM) algorithm to generate an output voltage of up to 4.5 volts. The regulator is designed to have excellent line and load transient characteristics, while maintaining a high level of power efficiency. It is ideal for applications which require a high level of precision and low on-peak power consumption.

The primary application field of the ADP2140ACPZ3325R7 is in portable or embedded applications. Its wide input range (1.8V - 5.5V) allows it to be used in a wide variety of devices, including cellular telephones, laptops, digital cameras and audio players. The device is also suitable for powering small, battery-powered systems and provides a high output current (3A max in switching, 1.2A in linear).

The working principle of the ADP2140ACPZ3325R7 revolves around the application of power. In linear mode, the device utilizes a low-dropout linear regulator to convert the supply voltage to the desired output voltage. The output voltage is regulated by an internal voltage reference, which sets the voltage threshold for regulation.

In switching mode, the device operates similarly, but utilizes a pulse width modulation (PWM) algorithm to convert the supply voltage to the desired output voltage. The PWM method reduces the amount of wasted energy and allows for improved power efficiency. Furthermore, the switching regulator is capable of delivering a higher output current than the linear regulator.

The ADP2140ACPZ3325R7 provides a number of protections to guard against fault conditions, including overvoltage protection, undervoltage lockout and thermal shutdown. The device also has an internal voltage reference, which ensures that the device can maintain precise output voltage with minimal load current.

In conclusion, the ADP2140ACPZ3325R7 is a versatile dual, low-dropout linear regulator with excellent line and load transient characteristics. Its wide input range and high output current make it well suited for use in portable or embedded applications. The device is capable of operating in either linear or switching modes, further increasing its versatility. Furthermore, the device offers a number of protective functions and an internal voltage reference, which ensures high precision output voltage.

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