LP2989AIMX-2.5

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The LP2989AIMX-2.5 is a low-power, low-dropout, wide-input voltage linear voltage regulator with an output voltage of 2.5 V. It is a member of the LP2989 family of linear voltage regulators, which have been designed with the latest high-efficiency architectures and offer low output noise and low quiescent current. The LP2989AIMX-2.5 is ideal for a variety of battery-powered portable applications. Its wide input voltage range of 2.0 V to 6.5 V and low dropout voltage makes it suitable for a variety of power sources including alkaline, NiMH, and Li-Ion batteries. The device is also capable of handling high load currents up to 1 A. It has a high ripple rejection of 70 dB, low output voltage noise of 10 μV RMS, and a low quiescent current of 2.6 mA.

The LP2989AIMX-2.5 is a linear voltage regulator which operates by passing a constant current through a resistor, generating a corresponding voltage drop. This current, also known as the bias current, is established by a reference voltage and is kept constant by the regulation circuit. The LP2989AIMX-2.5 is unique in that it has an internal reference voltage of 1.225 V which guarantees an output of 2.5 V, even if the input voltage drops below 2 V.

The input voltage is supplied to the control pin of the LP2989AIMX-2.5, and the output is then adjusted based on the current flowing through the resistor. The regulation of the voltage occurs over the entire range of the input voltage, from 2.0 V to 6.5 V. The device also has a current limit feature, which prevents the current from exceeding a certain level, providing additional protection.

The LP2989AIMX-2.5 is designed with a maximum output current of 1 A, making it suitable for a variety of applications. It is also designed for low power consumption and low thermal dissipation. It features a thermal control loop that enables the device to automatically reduce its output voltage in order to maintain a safe operating temperature. The device is also capable of working in harsh conditions, such as high humidity and temperatures ranging from -40 °C to +125 °C.

The LP2989AIMX-2.5 is ideal for a variety of battery-powered portable applications such as industrial sensors, medical devices, and lawn and garden equipment. Its wide input voltage range, low dropout voltage, high ripple rejection, and low output voltage noise make it highly suitable for these applications.

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