Texas Instruments

LP3881EMR-1.8/NOPB

LP3881EMR-1.8/NOPB Description

The LP3881EMR-1.8/NOPB is a linear regulator IC designed for high-performance power management applications. Manufactured by Texas Instruments, this device offers a fixed output voltage of 1.8V and can deliver up to 800mA of output current. It is designed to operate with an input voltage range up to 5.5V, making it suitable for a variety of power supply configurations. The regulator features a low dropout voltage of 0.19V at 800mA, ensuring efficient power conversion even under low input-to-output voltage differentials.

LP3881EMR-1.8/NOPB Features

• Output Type: Fixed at 1.8V, providing a stable power supply for sensitive electronic components.
• Input Voltage Range: Up to 5.5V, offering flexibility in power source selection.
• Output Current: Capable of delivering up to 800mA, suitable for driving moderate to high current loads.
• Low Dropout Voltage: 0.19V at 800mA, enhancing efficiency in low-voltage applications.
• Quiescent Current: Low at 30 µA, minimizing power consumption during standby or low-load conditions.
• Power Supply Current: Max of 8 mA, ensuring efficient operation.
• Control Features: Enable pin allows for easy control of the regulator's operation.
• Protection Features: Comprehensive protection mechanisms including over-current, over-temperature, short-circuit, and under-voltage lockout (UVLO) ensure robustness and reliability.
• Performance: High power supply rejection ratio (PSRR) ranging from 80dB to 65dB across frequencies from 120Hz to 1kHz, providing excellent noise filtering.
• Compliance: ROHS3 compliant and REACH unaffected, meeting environmental and regulatory standards.
• Mounting Type: Surface mount, compatible with modern PCB assembly techniques.
• Package: Supplied in a tube, facilitating easy handling and storage.

LP3881EMR-1.8/NOPB Applications

The LP3881EMR-1.8/NOPB is ideal for a range of applications where a stable and efficient power supply is required. Its low dropout voltage and high PSRR make it particularly suitable for battery-powered devices and sensitive analog circuits. Use cases include:

• Battery-Powered Devices: Ideal for portable electronics where input voltage may vary significantly.
• Analog Circuits: Suitable for precision analog applications requiring low noise and stable voltage.
• Consumer Electronics: Applicable in devices such as smartphones, tablets, and wearable technology.
• Industrial Equipment: Reliable power supply for sensors, actuators, and other industrial components.

Conclusion of LP3881EMR-1.8/NOPB

The LP3881EMR-1.8/NOPB from Texas Instruments is a versatile and efficient linear regulator designed to meet the demands of modern power management applications. Its fixed 1.8V output and capability to deliver up to 800mA make it suitable for a wide range of devices. The low dropout voltage and high PSRR ensure efficient and clean power delivery, while comprehensive protection features enhance reliability. Despite being marked as obsolete, the LP3881EMR-1.8/NOPB remains a valuable component for designers seeking a reliable and efficient power solution.