Texas Instruments

LP2981AIM5X-3.6

LP2981AIM5X-3.6 Description

The LP2981AIM5X-3.6 is a fixed output linear regulator from Texas Instruments, designed to deliver a stable 3.6V output voltage with a maximum output current of 100mA. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a compact SOT23-5 package, making it suitable for surface mount applications. Despite its small form factor, the LP2981AIM5X-3.6 offers robust performance and a range of protection features, including over current, over temperature, and short circuit protection. It also features an enable control, allowing for dynamic power management in various electronic systems.

LP2981AIM5X-3.6 Features

• Output Type: Fixed at 3.6V, ensuring a stable power supply for sensitive electronic components.
• Input Voltage Range: Capable of handling input voltages up to 16V, providing flexibility in power source selection.
• Output Current: Delivers up to 100mA, suitable for low-power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.37V at 100mA, the LP2981AIM5X-3.6 maintains efficiency even at low input-to-output voltage differentials.
• Low Quiescent Current: Consumes only 95 µA in quiescent mode, minimizing power loss in standby conditions.
• High PSRR: Achieves 63dB at 1kHz, effectively rejecting noise from the input supply and ensuring clean output power.
• Protection Features: Includes over current, over temperature, and short circuit protection, safeguarding both the regulator and connected circuits.
• Enable Control: Provides an enable pin for dynamic power management, allowing the regulator to be turned on and off as needed.
• Mounting Type: Surface mount, ideal for compact and space-constrained designs.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for a wide range of manufacturing environments.
• Package: Tape & Reel (TR), facilitating automated assembly processes.

LP2981AIM5X-3.6 Applications

The LP2981AIM5X-3.6 is well-suited for a variety of applications where a stable, low-power supply is required. Its compact size and robust performance make it ideal for:

• Consumer Electronics: Portable devices, such as smartphones, tablets, and wearables, where space is limited and power efficiency is crucial.
• Industrial Equipment: Low-power sensors, controllers, and IoT devices that require reliable power management.
• Medical Devices: Portable medical equipment and diagnostic tools that demand stable and efficient power supplies.
• Automotive Electronics: In-vehicle systems and accessories that need a compact and reliable power solution.

Conclusion of LP2981AIM5X-3.6

The LP2981AIM5X-3.6 from Texas Instruments is a versatile and efficient linear regulator, offering a stable 3.6V output with a maximum current of 100mA. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for applications requiring high efficiency and noise rejection. The inclusion of over current, over temperature, and short circuit protection ensures reliable operation in various conditions. With its compact SOT23-5 package and surface mount design, the LP2981AIM5X-3.6 is ideal for space-constrained designs in consumer electronics, industrial equipment, medical devices, and automotive applications. Despite being marked as obsolete, the LP2981AIM5X-3.6 remains a reliable option for engineers seeking a proven power management solution.