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LP2980AIM5X-3.3

LP2980AIM5X-3.3 Description

The LP2980AIM5X-3.3 is a fixed 3.3V low-dropout (LDO) linear voltage regulator from National Semiconductor, designed for precision power management in space-constrained applications. With an input voltage range up to 16V and a 50mA output current, this regulator delivers stable, low-noise power with a minimal dropout voltage of 0.22V @ 50mA, making it ideal for battery-powered and noise-sensitive systems. Its ultra-low quiescent current (95 µA) and 1.2mA max supply current enhance efficiency in always-on circuits. The device features enable control and robust protection mechanisms, including over-current, over-temperature, and short-circuit safeguards, ensuring reliable operation in harsh environments.

LP2980AIM5X-3.3 Features

• Fixed 3.3V output with ±2% accuracy for stable voltage regulation.
• Low dropout voltage (0.22V @ 50mA) maximizes efficiency in low-input-voltage scenarios.
• Ultra-low quiescent current (95 µA) extends battery life in portable devices.
• High PSRR (63dB @ 1kHz) minimizes noise for sensitive analog/digital circuits.
• Enable pin allows for power-saving modes, reducing standby consumption.
• Protection features: Over-current, over-temperature, and short-circuit protection enhance reliability.
• Surface-mount SOT-23-5 package suits compact PCB designs.
• Wide input range (up to 16V) accommodates diverse power sources.

LP2980AIM5X-3.3 Applications

• Battery-powered devices: Ideal for IoT sensors, wearables, and handheld electronics due to low Iq and dropout.
• Noise-sensitive systems: Suitable for RF modules, ADCs, and precision analog circuits with high PSRR.
• Embedded systems: Powers microcontrollers, FPGAs, and memory in industrial/consumer applications.
• Automotive electronics: Reliable performance under voltage fluctuations in infotainment or telematics.
• Medical devices: Ensures stable voltage for portable diagnostic equipment and implantable sensors.

Conclusion of LP2980AIM5X-3.3

The LP2980AIM5X-3.3 stands out as a high-performance LDO regulator, combining low power consumption, robust protection, and compact form factor. Its high PSRR and low dropout make it superior to generic LDOs in noise-critical and low-voltage applications. Whether for portable electronics, industrial systems, or automotive designs, this regulator delivers efficiency and reliability, backed by National Semiconductor's proven quality. A versatile choice for engineers prioritizing precision and power efficiency.