Texas Instruments

LP2988IMMX-5.0

LP2988IMMX-5.0 Description

The LP2988IMMX-5.0 is a fixed-output linear regulator designed by Texas Instruments, offering a robust solution for power management applications. This regulator is part of the LP2988 series and features a fixed output voltage of 5V, capable of delivering up to 200mA of current. It is designed to operate with an input voltage range up to 16V, making it suitable for a variety of electronic systems that require stable and reliable power supply.

The LP2988IMMX-5.0 is housed in an 8VSSOP package, which is ideal for surface mount applications, ensuring ease of integration into compact designs. Despite its small form factor, the regulator boasts a dropout voltage of only 0.35V at 200mA, which is significantly lower than many comparable devices. This low dropout voltage allows the regulator to maintain efficiency even when the input voltage is close to the output voltage, enhancing overall power efficiency.

LP2988IMMX-5.0 Features

• Fixed Output Voltage: The LP2988IMMX-5.0 provides a stable 5V output, ensuring consistent power delivery to connected devices.
• High Efficiency: With a maximum dropout voltage of 0.35V at 200mA, the regulator maintains high efficiency even under low input-to-output voltage differentials.
• Low Quiescent Current: The regulator features a quiescent current of just 120 µA, minimizing power consumption during operation.
• Protection Features: The LP2988IMMX-5.0 includes over-current, over-temperature, and short-circuit protection, safeguarding both the regulator and connected circuits from potential damage.
• Control Features: The regulator includes an enable feature, allowing for dynamic control of the output voltage, which is particularly useful in applications requiring power sequencing or power-saving modes.
• High PSRR: The regulator offers a power supply rejection ratio (PSRR) of 65dB at 1kHz, effectively filtering out noise from the input supply and ensuring a clean output voltage.
• Moisture Sensitivity Level: The MSL rating of 1 (Unlimited) ensures that the regulator is suitable for a wide range of environmental conditions, making it ideal for industrial and consumer applications.

LP2988IMMX-5.0 Applications

The LP2988IMMX-5.0 is well-suited for a variety of applications that demand stable and efficient power supply solutions. Some specific use cases include:

• Consumer Electronics: Ideal for powering microcontrollers, sensors, and other low-power devices in consumer electronics.
• Industrial Equipment: Suitable for industrial control systems, where reliability and efficiency are paramount.
• Telecommunications: Can be used in various telecom equipment, providing stable power to critical components.
• Medical Devices: Applicable in medical equipment where low dropout voltage and high PSRR are essential for maintaining accurate and reliable operation.

Conclusion of LP2988IMMX-5.0

The LP2988IMMX-5.0 is a versatile and efficient linear regulator that offers a combination of high performance and robust protection features. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for applications requiring stable and efficient power supply. Despite being marked as obsolete, the LP2988IMMX-5.0 remains a reliable option for designers seeking a compact and efficient power management solution.