Texas Instruments

LP2985A-28DBVT

LP2985A-28DBVT Description

The LP2985A-28DBVT is a fixed-output linear regulator designed for high performance and reliability in a wide range of applications. Manufactured by Texas Instruments, this regulator is part of the Power Management Integrated Circuit (PMIC) category and is housed in a compact SOT23-5 package, making it suitable for surface-mount applications. The LP2985A-28DBVT provides a stable output voltage of 2.8V with a maximum output current of 150mA. It features a low dropout voltage of 0.58V at 150mA, ensuring efficient operation even at low input-to-output voltage differentials. The regulator is designed to operate with an input voltage range up to 16V, making it versatile for various power supply scenarios.

LP2985A-28DBVT Features

• Output Type: Fixed output voltage of 2.8V.
• Input Voltage Range: Capable of handling input voltages up to 16V.
• Output Current: Delivers a maximum output current of 150mA.
• Low Dropout Voltage: Ensures high efficiency with a maximum dropout voltage of 0.58V at 150mA.
• Low Quiescent Current: Consumes only 95µA of quiescent current, making it suitable for low-power applications.
• High PSRR: Offers a high power supply rejection ratio (PSRR) of 45dB at 1kHz, minimizing noise and ripple.
• Control Features: Includes an enable function for power control.
• Protection Features: Equipped with over-current, over-temperature, and short-circuit protection to ensure robust operation.
• Compliance: RoHS3 compliant and REACH unaffected, ensuring environmental safety.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for various environmental conditions.
• Packaging: Available in tape and reel (TR) packaging for convenient handling and assembly.

LP2985A-28DBVT Applications

The LP2985A-28DBVT is ideal for applications requiring a stable and efficient power supply with minimal noise ripple and. Its low dropout voltage and high PSRR make it particularly suitable for battery-powered devices and systems where input voltage may vary significantly. Some specific use cases include:

• Battery-Powered Devices: Ideal for portable electronics and IoT devices where battery life and efficiency are critical.
• Low-Power Systems: Suitable for applications that require minimal power consumption, such as sensors and microcontrollers.
• Industrial Equipment: Can be used in industrial applications where a stable and reliable power supply is essential.
• Consumer Electronics: Applicable in consumer devices that demand high performance and low noise, such as audio equipment and smart home devices.

Conclusion of LP2985A-28DBVT

The LP2985A-28DBVT from Texas Instruments is a high-performance linear regulator that offers a combination of stability, efficiency, and reliability. Its low dropout voltage and high PSRR make it stand out from similar models, providing superior performance in low-power and battery-operated applications. The inclusion of advanced protection features ensures robust operation, while its compact SOT23-5 package and surface-mount design make it easy to integrate into various systems. Despite being marked as obsolete, the LP2985A-28DBVT remains a viable option for applications where its unique features and performance benefits are required.