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LP2980AIM5-3.3

LP2980AIM5-3.3 Description

The LP2980AIM5-3.3 from Texas Instruments is a low-dropout (LDO) linear voltage regulator designed to deliver a fixed 3.3V output with a maximum current of 50mA. It operates with an input voltage range up to 16V, making it suitable for a variety of power supply applications. The device features a low dropout voltage of 0.22V at 50mA, ensuring efficient operation even with minimal headroom. With a quiescent current of just 95 µA and a PSRR of 63dB at 1kHz, the LP2980AIM5-3.3 excels in noise-sensitive environments. Its compact SOT23-5 package and surface-mount design make it ideal for space-constrained applications.

LP2980AIM5-3.3 Features

• Fixed 3.3V Output: Stable voltage regulation for precision applications.
• Low Dropout Voltage: 0.22V at 50mA ensures efficiency in low-input scenarios.
• Ultra-Low Quiescent Current: 95 µA minimizes power consumption in battery-operated systems.
• High PSRR: 63dB at 1kHz reduces noise for sensitive analog/digital circuits.
• Robust Protection: Includes over-current, over-temperature, and short-circuit protection.
• Enable Control: Allows for power management via an external signal.
• Wide Input Range: Supports up to 16V, accommodating various power sources.
• Compact SOT23-5 Package: Ideal for portable and space-limited designs.
• RoHS3 Compliant & REACH Unaffected: Meets environmental and regulatory standards.

LP2980AIM5-3.3 Applications

The LP2980AIM5-3.3 is particularly suited for:

• Battery-Powered Devices: Such as wearables, IoT sensors, and portable medical equipment, where low quiescent current is critical.
• Noise-Sensitive Analog Circuits: Including audio amplifiers, ADCs, and RF modules, benefiting from high PSRR.
• Embedded Systems: Microcontroller power supplies in industrial and consumer electronics.
• Automotive Electronics: Auxiliary power regulation in infotainment or telematics systems (within input voltage limits).
• Power Sequencing: Enables controlled startup/shutdown in multi-rail designs.

Conclusion of LP2980AIM5-3.3

The LP2980AIM5-3.3 stands out as a high-performance, low-power LDO regulator with exceptional noise suppression and protection features. Its low dropout, ultra-low Iq, and compact form factor make it a preferred choice for energy-efficient and space-constrained designs. While classified as Last Time Buy, its reliability and Texas Instruments' legacy ensure it remains a viable solution for legacy and new projects requiring stable 3.3V power. Ideal for portable, analog, and mixed-signal systems, this regulator balances efficiency, precision, and robustness.