AP2138N-2.2TRG1

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PMIC, or Power Management Integrated Circuits, are integrated circuits that are used to stabilize different voltages in a device. They are used in a wide range of electrical devices, including computers and mobile phones. One common type of PMIC is the Voltage Regulator, which helps to regulate the voltage of a device in order to ensure that it does not get too high or too low. The AP2138N-2.2TRG1 is a type of Linear Voltage Regulator designed for use in portable and mobile communication devices such as mobile phones. Here, we will explore the application field and working principle of the AP2138N-2.2TRG1.

The AP2138N-2.2TRG1 is designed for use in batteries of portable communication devices. It is a low dropout linear regulator that has a maximum operating temperature of +85°C and a maximum output current of 1A. It has a small size and a low quiescent current and can be used in a wide range of mobile devices such as digital cameras, mobile phones and personal digital assistants (PDA).

The main feature of the AP2138N-2.2TRG1 is its ability to deliver a regulated output voltage despite variations in the input voltage. This ensures that the device is always powered at the correct voltage, reducing the risk of it becoming unstable or switching off unexpectedly. The AP2138N-2.2TRG1 operates in a range from +2.7 to +10V, providing a regulated output voltage of 2.2V.

In terms of its working principle, the AP2138N-2.2TRG1 is a Linear Voltage Regulator, meaning that it uses a linear regulator chip to regulate the output voltage. The Linear Voltage Regulator operates by regulating the amount of current that passes through the transistor, which in turn affects the output voltage. The voltage is regulated by the voltage reference and the error amplifier circuit. The error amplifier compares the output voltage to the reference voltage and adjusts the amount of current that passes through the transistor accordingly. This ensures that the output voltage is always held to the correct value.

In summary, the AP2138N-2.2TRG1 is a low dropout linear voltage regulator designed for use in portable and mobile devices such as digital cameras and mobile phones. It works by using a linear regulator chip to regulate the output voltage and ensures that the device is always powered at the correct voltage, reducing the risk of it switching off unexpectedly.

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