Texas Instruments

LP2981-50DBVRG4  

Linear & Switching Voltage Regulators

LP2981-50DBVRG4 Description

The LP2981-50DBVRG4 is a high-performance linear voltage regulator designed by Texas Instruments, offering a fixed output voltage of 5V and a maximum output current of 100mA. This regulator is housed in a compact SOT23-5 package, making it ideal for space-constrained applications. It features a maximum input voltage of 16V and a low dropout voltage of 0.37V at 100mA, ensuring efficient operation even at low input-to-output voltage differentials. The regulator includes an enable control feature, allowing for dynamic power management and reduced power consumption during standby periods.

LP2981-50DBVRG4 Features

• Fixed Output Voltage: Provides a stable 5V output, ensuring consistent power supply to connected devices.
• Low Dropout Voltage: With a maximum dropout voltage of 0.37V at 100mA, the LP2981-50DBVRG4 maintains high efficiency even when the input voltage is close to the output voltage.
• Enable Control: The enable feature allows for dynamic control of the regulator, enabling power-saving modes and reducing quiescent current during standby.
• Protection Features: Integrated over-current, over-temperature, and short-circuit protection ensure robust operation and protect the regulator from damage under adverse conditions.
• Low Quiescent Current: The regulator operates with a quiescent current of only 95 µA, minimizing power loss and extending battery life in portable applications.
• High PSRR: A power supply rejection ratio (PSRR) of 63dB at 1kHz ensures that the output voltage remains stable and free from input voltage fluctuations.
• Compliance and Packaging: The LP2981-50DBVRG4 is REACH unaffected and RoHS3 compliant, making it suitable for environmentally conscious designs. It is available in a surface-mount SOT23-5 package, which is both compact and easy to integrate into PCB designs.

LP2981-50DBVRG4 Applications

The LP2981-50DBVRG4 is well-suited for a variety of applications where a stable and efficient power supply is required. Its low dropout voltage and compact size make it ideal for battery-powered devices, portable electronics, and IoT devices. The enable control feature allows for dynamic power management, making it suitable for applications that require low power consumption during standby periods. The regulator's robust protection features ensure reliable operation in harsh environments, making it a reliable choice for industrial and automotive applications.

Conclusion of LP2981-50DBVRG4

The LP2981-50DBVRG4 from Texas Instruments is a versatile and efficient linear voltage regulator that offers a combination of high performance and compact design. Its low dropout voltage, enable control feature, and robust protection mechanisms make it a reliable choice for a wide range of applications. Whether used in portable devices, industrial systems, or automotive electronics, the LP2981-50DBVRG4 ensures stable power delivery and efficient operation, making it a standout solution in the market.

LP2981-50DBVRG4 Documents

Download datasheets and manufacturer documentation for LP2981-50DBVRG4

Images :

Mechanical Outline Drawing      

PCN :

Product Change Notification (PDF)      

Models :

LP2981-50DBVRG4 Symbol & Footprint by SnapMagic      

Application Notes :

Isolated power supply low-noise circuit: 5V 100mA (Rev. A)