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LP2987IMM-2.5

LP2987IMM-2.5 Description

The LP2987IMM-2.5 is a linear regulator designed by National Semiconductor, a leading manufacturer in the power management integrated circuit (PMIC) category. This regulator is specifically designed to provide a stable 2.5V output voltage with a maximum output current of 200mA. It is housed in an 8VSSOP package, making it suitable for surface-mount applications. Despite its small form factor, the LP2987IMM-2.5 offers robust performance features, including a low quiescent current of 120 µA and a high power supply rejection ratio (PSRR) of 65dB at 1kHz. The regulator is designed to operate with an input voltage range up to 16V and features a low dropout voltage of 0.35V at 200mA, ensuring efficient power delivery even under varying load conditions.

LP2987IMM-2.5 Features

The LP2987IMM-2.5 boasts several unique features that set it apart from similar models in the market:

• Low Quiescent Current: With a quiescent current of only 120 µA, the LP2987IMM-2.5 is highly efficient, making it ideal for battery-powered devices where minimizing power consumption is crucial.
• High PSRR: The 65dB PSRR at 1kHz ensures that the regulator can effectively filter out noise from the input power supply, resulting in a clean and stable output voltage.
• Fixed Output Voltage: The regulator provides a fixed 2.5V output, simplifying design considerations and ensuring consistent performance.
• Enable Control Feature: The enable feature allows for dynamic control of the regulator, enabling power-saving modes and efficient power management.
• Protection Features: The LP2987IMM-2.5 includes over-current, over-temperature, and short-circuit protection, ensuring reliable operation and safeguarding against potential faults.
• Low Dropout Voltage: The maximum dropout voltage of 0.35V at 200mA ensures high efficiency, especially in applications where the input voltage is close to the output voltage.

LP2987IMM-2.5 Applications

The LP2987IMM-2.5 is well-suited for a variety of applications due to its high efficiency and robust performance features:

• Battery-Powered Devices: The low quiescent current and high PSRR make this regulator ideal for portable electronic devices, such as smartphones, tablets, and wearable technology, where battery life and power efficiency are critical.
• Low-Power Systems: The regulator's efficiency and low dropout voltage are beneficial in low-power systems, such as IoT devices and embedded systems, where the input voltage may vary.
• Medical Devices: The enable feature and protection mechanisms ensure reliable operation, making the LP2987IMM-2.5 suitable for medical devices that require precise power management and high reliability.
• Industrial Applications: The robust protection features and high PSRR make this regulator ideal for industrial applications where noise immunity and reliability are essential.

Conclusion of LP2987IMM-2.5

The LP2987IMM-2.5 is a versatile and efficient linear regulator that offers a range of performance benefits, making it suitable for various applications. Its low quiescent current, high PSRR, and low dropout voltage ensure high efficiency and stable power delivery. The enable control feature and comprehensive protection mechanisms further enhance its reliability and flexibility. While the product is now obsolete, its technical specifications and performance features continue to make it a valuable reference for engineers and designers in the electronics industry.