SMA5131

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The SMA5131 is a low-voltage (2.9V to 4.3V) enhancement-mode N-channel MOSFET array. It is an array device which contains four independent MOSFETs. This array device is suitable as a power supply and battery switch in mobile phones and applications that need a 5th-order channel with an intermediate voltage regulator.

Application Field of SMA5131

The SMA5131 MOSFET array can be used for various purposes due to its robust package and customizable parameters. The following are some of the fields where it is widely used:

• Power management - The array can be used for controlling and managing power with its wide range of operational voltages. This helps conserve energy and regulate power.
• Mobile phones - The array is used in mobile devices to control and manage power as well as battery switching.
• Intermediate voltage regulation - The array is used in applications that require 5th order channeling with an intermediate voltage regulation.

Apart from the above areas, the SMA5131 can be used in other applications such as automotive lighting and displays, power supplies, and automotive circuitry.

Working Principle of SMA5131

The SMA5131 array operates on the enhancement-mode, which means that it requires a voltage input in order to switch on the transistors and turn on the power. It works on the principle of an N-channel MOSFET, where an applied voltage across the gate and source terminals causes a force to build up in the structure and move the electrons in the N-channel. This, in turn, causes a flow of electrical current across the source and drain terminals.

The array is optimized to provide efficient performance at low currents and operating voltages. It is also equipped with built-in undervoltage lockout protection that prevents any unnecessary drain on the battery. Additionally, it offers protection against overheating and short-circuits, preventing any damage to the components.

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