Texas Instruments

LP2985A-30DBVT

LP2985A-30DBVT Description

The LP2985A-30DBVT from Texas Instruments is a low-dropout (LDO) linear voltage regulator designed for precision power management in space-constrained applications. This fixed 3V output regulator delivers up to 150mA of load current with an ultra-low dropout voltage of 0.58V (max) at full load, making it ideal for battery-powered systems. The device operates over a wide input voltage range (up to 16V) while maintaining excellent efficiency. With a quiescent current of just 95 µA, it minimizes power loss in standby modes. The SOT23-5 package ensures compact PCB footprint, suitable for portable and embedded designs.

LP2985A-30DBVT Features

• Fixed 3V Output: Stable regulation for low-voltage circuits.
• Ultra-Low Dropout (0.58V @ 150mA): Maximizes efficiency in battery-operated systems.
• Low Quiescent Current (95 µA): Extends battery life in standby modes.
• High PSRR (45dB @ 1kHz): Excellent noise rejection for sensitive analog/digital loads.
• Enable Pin Control: Allows power sequencing and shutdown to reduce leakage.
• Robust Protection: Includes over-current, over-temperature, and short-circuit safeguards.
• Wide Input Range (Up to 16V): Compatible with various power sources.
• RoHS3 & REACH Compliant: Meets environmental and safety standards.

LP2985A-30DBVT Applications

• Battery-Powered Devices: Ideal for IoT sensors, wearables, and portable electronics due to low Iq and dropout.
• Embedded Systems: Provides clean power to MCUs, FPGAs, and RF modules in industrial/consumer applications.
• Automotive Electronics: Suitable for infotainment and ADAS subsystems with its wide input range.
• Medical Devices: Ensures reliable voltage for patient monitors and diagnostic tools with high PSRR.
• Point-of-Load Regulation: Used in distributed power architectures to minimize noise coupling.

Conclusion of LP2985A-30DBVT

The LP2985A-30DBVT stands out as a high-performance LDO regulator, combining low power consumption, compact packaging, and robust protection. Its ultra-low dropout and high PSRR make it superior to basic LDOs, particularly in noise-sensitive or energy-efficient designs. Texas Instruments’ reliability and the device’s compliance with RoHS3/REACH further enhance its suitability for modern electronics. Whether for portable, automotive, or industrial systems, this regulator delivers precision power with minimal overhead.