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LP2981IM5X-3.6

LP2981IM5X-3.6 Description

The LP2981IM5X-3.6 is a linear voltage regulator designed by Texas Instruments, offering a fixed output voltage of 3.6V and capable of delivering up to 100mA of output current. This regulator is housed in a compact SOT23-5 package, making it suitable for a wide range of applications where space is a constraint. Despite its small size, the LP2981IM5X-3.6 provides robust performance features, including a low dropout voltage of 0.37V at 100mA and a maximum input voltage of 16V. The regulator also includes essential protection features such as over-current, over-temperature, and short-circuit protection, ensuring reliable operation under various conditions.

LP2981IM5X-3.6 Features

• Output Type: Fixed 3.6V output voltage, ideal for applications requiring a stable power supply.
• Input Voltage Range: Capable of handling input voltages up to 16V, providing flexibility in power source selection.
• Output Current: Delivers up to 100mA of current, sufficient for powering small electronic devices and circuits.
• Low Dropout Voltage: A maximum dropout voltage of 0.37V at 100mA ensures efficient operation even with minimal input-to-output voltage difference.
• Protection Features: Over-current, over-temperature, and short-circuit protection enhance reliability and protect against common failure modes.
• Control Features: An enable pin allows for easy control of the regulator's operation, enabling power-saving modes when not in use.
• Low Quiescent Current: A quiescent current of 95µA minimizes power consumption during standby operation.
• High PSRR: A power supply rejection ratio (PSRR) of 63dB at 1kHz ensures minimal noise and ripple in the output voltage.
• Mounting Type: Surface mount technology (SMT) in a SOT23-5 package facilitates easy integration into compact designs.
• Moisture Sensitivity Level: MSL 1 (Unlimited) indicates that the component is not sensitive to moisture, reducing the risk of damage during handling and storage.

LP2981IM5X-3.6 Applications

The LP2981IM5X-3.6 is well-suited for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Portable Devices: Ideal for powering small electronic devices such as smartphones, tablets, and wearable technology due to its low dropout voltage and compact size.
• Battery-Powered Systems: Suitable for applications where battery life is critical, as the low quiescent current and efficient operation help extend battery runtime.
• Industrial Control Systems: The robust protection features and high PSRR make it a reliable choice for industrial applications where reliability and noise immunity are paramount.
• Medical Devices: The compact size and low dropout voltage are beneficial for medical devices that require precise power management and minimal power consumption.
• Consumer Electronics: Applicable in a wide range of consumer electronics, such as digital cameras, MP3 players, and other portable gadgets.

Conclusion of LP2981IM5X-3.6

The LP2981IM5X-3.6 from Texas Instruments is a versatile and reliable linear voltage regulator that offers a fixed 3.6V output with up to 100mA of current. Its low dropout voltage, compact SOT23-5 package, and comprehensive protection features make it an excellent choice for a variety of applications, particularly those requiring efficient power management and minimal space. Despite being marked as obsolete, the LP2981IM5X-3.6 remains a valuable component for designers seeking a reliable and efficient power solution.