AP2138R-3.3TRG1

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The AP2138R-3.3TRG1 is a voltage regulator, part of the Linear subcategory of PMICs, that, due to its high level of efficiency, features an impressive performance to cost ratio. The installation of this voltage regulator is relatively easy, and it is compatible with different substrate materials. Distance between pins is 1.25mm. This voltage regulator has several features and applications, specifically designed to provide a reliable, efficient and cost effective power solution.

The voltage regulator is designed to regulate a DC voltage of 3.3V. The regulated output current is 350mA, while the ripple rejection and line regulation is at 88dB, with a temperature coefficient of 180ppm/°C. This voltage regulator also features a low dropout voltage, with a quiescent current of typically 10 μA. Protection features, such as short circuit, thermal and over voltage, guarantee a smooth and reliable operation.

The main application of the AP2138R-3.3TRG1 is in the field of communications and electronic systems, such as mobile phones, computers, and TVs. It is also used in devices with low energy measures and in audio amplifications, since it provides continuity and high level of efficiency. This voltage regulator is also perfect for automotive electronics, since its noise rejection capabilities provide a clean and stable power supply for the devices. Furthermore, it is available in different packages such as SOT-89 and TO-252.

Working principle of this voltage regulator is based on two essential components: a P-MOSFET and a current sense resistor. The P-MOSFET acts as the main switching device and it is driven by an internal current source in order to regulate the output voltage. The voltage drop across the sense resistor is compared with a reference voltage (3.3V in this case). Whenever the voltage across the sense resistor is higher than the reference voltage, the internal current source is decreased until the voltage is reduced. This loop regulates the voltage and provides a stable operation.

The AP2138R-3.3TRG1 is a linear voltage regulator that provides a reliable, efficient, and cost effective solution for applications in the communications, automotive, and electronics industries. With its impressive temperature coefficient and impressive line regulation and ripple rejection capabilities, it is used in countless electronic devices, where a stable power source is required for a steady operation. Its installation is also relatively easy, thanks to its compatible substrate materials, and it is available in different packages.

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