Texas Instruments

LP2986IM-3.3

LP2986IM-3.3 Description

The LP2986IM-3.3 is a fixed output linear regulator designed for applications requiring a stable 3.3V output voltage with a maximum output current of 200mA. Manufactured by Texas Instruments, this regulator is part of the Power Management Integrated Circuits (PMIC) category and is housed in an 8SOIC package suitable for surface mount applications. Despite being marked as obsolete, the LP2986IM-3.3 remains a reliable choice for various electronic systems due to its robust performance and comprehensive feature set.

LP2986IM-3.3 Features

The LP2986IM-3.3 offers several key features that make it a versatile and efficient regulator:

• Fixed Output Voltage: The regulator provides a stable 3.3V output voltage, ensuring consistent power supply to sensitive electronic components.
• High Input Voltage Range: With a maximum input voltage of 16V, the LP2986IM-3.3 can accommodate a wide range of input sources, making it suitable for diverse applications.
• 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.
• Low Quiescent Current: A quiescent current of only 120 µA minimizes power consumption, which is crucial for battery-powered devices.
• High Power Supply Rejection Ratio (PSRR): The 65dB PSRR at 1kHz helps in filtering out noise from the input power supply, resulting in a cleaner output voltage.
• Protection Features: The regulator includes over-current, over-temperature, and short-circuit protection, enhancing system reliability and longevity.
• Enable Control Feature: The enable feature allows for dynamic control of the regulator's operation, enabling power-saving modes and controlled startup sequences.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the LP2986IM-3.3 is suitable for a wide range of environmental conditions without requiring special handling during assembly.

LP2986IM-3.3 Applications

The LP2986IM-3.3 is ideal for a variety of applications where a stable and efficient power supply is required:

• Consumer Electronics: Ideal for portable devices such as smartphones, tablets, and digital cameras where low power consumption and high efficiency are critical.
• Industrial Systems: Suitable for industrial control systems, sensors, and actuators that require a reliable and stable power source.
• Telecommunications: Can be used in base stations, routers, and other telecom equipment where low noise and high PSRR are essential for maintaining signal integrity.
• Medical Devices: Applicable in medical equipment such as monitors, diagnostic tools, and portable medical devices where precision and reliability are paramount.
• Automotive Electronics: Useful in automotive applications such as infotainment systems, electronic control units, and sensor modules where robust performance and protection features are necessary.

Conclusion of LP2986IM-3.3

The LP2986IM-3.3 from Texas Instruments is a robust and efficient linear regulator that offers a stable 3.3V output with a maximum current of 200mA. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for applications requiring high efficiency and low noise. The inclusion of over-current, over-temperature, and short-circuit protection ensures reliable operation in various conditions. Despite its obsolete status, the LP2986IM-3.3 remains a valuable component for designers seeking a dependable power management solution.