LP3876ET-1.8/NOPB

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The LP3876ET-1.8/NOPB application field and working principle indicates an integrated linear voltage regulator designed for cost-sensitive applications. The product offers a very low quiescent current (IQ) operation for extended battery life, low noise performance, and the capability to provide a highly stable output voltage from a wide input supply range.

The primary applications for the LP3876ET-1.8/NOPB are power supply for analog and digital control circuits in personal computers, disk drives, game consoles, and other electronic equipment. The product can be used as a general-purpose low-dropout (LDO) regulator as well as a constraint linear-mode regulator with pulse-by-pulse current limit.

The LP3876ET-1.8/NOPB achieves a regulated output voltage by an error amplifier controlling the gate drive output of an extra-high-gain Darlington power stage. This device can provide an output current greater than 1.5 times its rated current without the need for power derating, and has a programmable current limit that is adjustable from 10mA to 2A. The circuit also utilizes a low quiescent current of only 10µA, making it very suitable for battery-powered applications.

The LP3876ET-1.8/NOPB offers many useful features such as excellent line and load regulation capabilities, low dropout voltage (20mV maximum at light loads), over voltage protection (OVP), reverse battery protection (RBP), current limit protection, and thermal shutdown protection. It is provided in an 8-pin SOT-223 package and is intended for use in negative-ground systems.

The LP3876ET-1.8/NOPB is designed for use in many systems for cost-sensitive applications. This is achieved through its low quiescent current draw and its high efficiency which results from its low internal voltage drop. It is also able to provide a regulated voltage with a high accuracy (±2 percent) and a excellent short-circuit protection. The device is well suited for use with low supply voltages, such as those found in portable devices or industrial applications. These features make the LP3876ET-1.8/NOPB a cost-effective and reliable component for various systems that require a constant, low-noise and low voltage supply.

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