LP2981AIM5X-2.7/NOPB

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LP2981AIM5X-2.7/NOPB voltage regulators, classified as PMIC – Voltage Regulators – Linear, are 3V low-dropout (LDO) regulators. They are designed to support a wide range of output currents from 1.7 mA to 500 mA. The LP2981AIM5X-2.7/NOPB provides excellent line and load regulation suitable for a variety of applications.The LP2981AIM5X-2.7/NOPB voltage regulation device is available in the 3x3mm 10-pin VSSOP package. It features a wide operating temperature range from -40°C to 125°C. The LP2911AIM5X-2.7/NOPB is optimized for low noise applications and exhibits a typical 3-pole ESR of 5 mOhms. It is an ideal choice for many target applications such as IoT nodes, home appliances, and consumer electronics.The LP2981AIM5X-2.7/NOPB device also provides some unique features and options to maximize power efficiency and system flexibility. These features include a 2.7V preset voltage option, a low quiescent current of 1.5 mA and a maximum drop-out voltage of 300 mV at 500 mA. The LP2981AIM5X-2.7/NOPB also offers an enable/shutdown pin.LP2981AIM5X-2.7/NOPB application fieldLP2981AIM5X-2.7/NOPB devices are widely used in a range of applications such as battery-operated systems, communications, Industrial, wearable electronics, etc. These devices are suitable for powering microprocessors and digital signal processors (DSPs), as well as other low-power, high-volatility applications.Working Principle of LP2981AIM5X-2.7/NOPBThe LP2981AIM5X-2.7/NOPB is a linear voltage regulator that uses a voltage-controlled current-source circuit, in contrast to the usual voltage-controlled current-source circuit, to provide regulated output voltage. The internal 2.7V reference voltage maintains high stability against changes in input voltage, temperature, and load current. The device contains two error amplifiers, which provide excellent stability and tolerance for a wide input voltage range and temperature range. The error amplifier senses the output voltage and compares to the reference voltage. A feedback connection is then used to compare the output voltage against the input voltage, limiting the maximum output current.The LP2981AIM5X-2.7/NOPB utilizes enhanced self-protection features, namely Protection against over current, over temperature, and output short-circuit. These features protect the device when there is an over-current situation or when the junction temperature reaches 125°C due to excessive power dissipation. The output voltage is also kept within the limits defined by adjustment of the supply voltage and temperature. Moreover, the device also includes a micro-reset feature, which monitors the status of the output voltage and resets the regulator when the output voltage drops below the preset threshold. In this way, the device is protected from catastrophic failure.In conclusion, the LP2981AIM5X-2.7/NOPB is a low-dropout regulator providing excellent line and load regulation. It has a wide operating temperature range, low quiescent current, maximum drop-out voltage of 300 mV at 500 mA, and several protection features. The LP2981AIM5X-2.7/NOPB is suitable for applications such as battery-operated systems, communications, Industrial, wearable electronics, etc.

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