LP2981IM5-2.8/NOPB

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The LP2981IM5-2.8/NOPB is a low dropout adjustable regulator manufactured by Texas Instruments. It uses a P-channel MOSFET to regulate the output voltage and provides very low quiescent current. The device is designed to handle 2.5V to 5.5V input and output voltages up to 3V.

The LP2981IM5-2.8/NOPB is a high performance, low noise Linear regulator which offers high efficiency and stable operation. It features an ultra-low operating current of 170µA, 80µA in shutdown mode and has a maximum of 430mA output current. It also offers a very good transient response and is short-circuit protected and thermally enhanced. The wide range of output voltage is adjustable and with a current limit in the range of 1.25V to 17V. In addition, it has an adjustable soft-start feature.

The LP2981IM5-2.8/NOPB is suitable for a wide range of applications requiring low voltage and low quiescent current operation. The LP2981IM5 can be used in a variety of power management configurations including low power processors, microcontrollers, sensors and other applications.

The LP2981IM5-2.8/NOPB works by using a P-channel MOSFET as a series element, connecting an adjust terminal to ground and an output terminal to an external feedback network. The input voltage is applied to the adjust terminal, which sets the output voltage. The output voltage is regulated by controlling the MOSFET’s gate voltage and is held constant regardless of input voltage fluctuations. When the output voltage is set lower than the input voltage, the MOSFET is biased in the off state, allowing the output voltage to rise. When the output voltage is set higher than the input voltage, the MOSFET is biased in the on state, allowing the output voltage to drop.

The LP2981IM5-2.8/NOPB is a versatile device that is suitable for a wide range of applications. It is ideal for use in low power systems, providing precise adjustable output voltage regulation. It is also suitable for use in portable electronics, providing very low quiescent current. Additionally, it can be used in automotive and industrial applications, providing highly accurate output voltage control.

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