Texas Instruments

LP2985-50DBVT

LP2985-50DBVT Description

The LP2985-50DBVT from Texas Instruments is a fixed 5V, 150mA low-dropout (LDO) linear voltage regulator in a compact SOT23-5 package. Designed for precision voltage regulation, it features a low dropout voltage of 0.58V at 150mA, making it ideal for battery-powered and space-constrained applications. With a wide input voltage range up to 16V, it supports robust performance in diverse power supply scenarios. The device operates with a quiescent current of just 95µA, enhancing efficiency in power-sensitive designs. Its 45dB PSRR (1kHz) ensures excellent noise rejection, critical for noise-sensitive analog and digital circuits.

LP2985-50DBVT Features

• Fixed 5V Output: Stable and precise regulation for 5V systems.
• Low Dropout Voltage: 0.58V @ 150mA maximizes efficiency in low-voltage applications.
• Ultra-Low Quiescent Current: 95µA minimizes power waste in standby modes.
• High PSRR: 45dB (1kHz) reduces noise for sensitive loads.
• Robust Protection: Includes over-current, over-temperature, and short-circuit protection.
• Enable Control: Allows external shutdown for power management.
• Wide Input Range: Up to 16V accommodates varying supply conditions.
• Compact SOT23-5 Package: Suitable for space-constrained PCB designs.
• RoHS3 & REACH Compliant: Meets environmental and regulatory standards.

LP2985-50DBVT Applications

• Battery-Powered Devices: Portable electronics, IoT sensors, and wearables benefit from its low dropout and quiescent current.
• Noise-Sensitive Circuits: Analog signal chains, RF modules, and audio systems leverage its high PSRR.
• Embedded Systems: Microcontroller power supplies, FPGA auxiliary rails, and industrial control systems.
• Automotive Electronics: Infotainment, sensors, and low-power peripherals requiring stable 5V rails.
• Consumer Electronics: Smart home devices, USB peripherals, and handheld gadgets.

Conclusion of LP2985-50DBVT

The LP2985-50DBVT stands out as a high-performance LDO regulator combining low power consumption, high accuracy, and robust protection. Its compact form factor, enable control, and superior noise rejection make it a versatile choice for modern electronic designs. Whether for battery-operated systems, noise-critical applications, or industrial controls, this regulator delivers reliable, efficient, and space-saving power management. Texas Instruments' reputation for quality further ensures its suitability for demanding environments.