Texas Instruments

LP2985A-18DBVRG4

LP2985A-18DBVRG4 Description

The LP2985A-18DBVRG4 is a high-performance linear voltage regulator designed by Texas Instruments. This regulator features a fixed output voltage of 1.8V and is capable of delivering up to 150mA of output current. It is designed for surface mount applications and comes in a compact SOT23-5 package, making it suitable for space-constrained designs. The regulator operates with an input voltage range up to 16V and has a low dropout voltage of 0.58V at 150mA, ensuring efficient power conversion even at low input-to-output voltage differentials.

LP2985A-18DBVRG4 Features

• Fixed Output Voltage: Provides a stable 1.8V output voltage, ideal for applications requiring a precise and consistent power supply.
• High Output Current: Capable of delivering up to 150mA, making it suitable for a wide range of applications that demand moderate power levels.
• Low Dropout Voltage: With a maximum dropout voltage of 0.58V at 150mA, it ensures high efficiency and minimal power loss, especially in low input voltage scenarios.
• Low Quiescent Current: Features a low quiescent current of 95µA, which is crucial for battery-powered devices where minimizing power consumption is essential.
• Enable Control Feature: Includes an enable pin, allowing for dynamic control of the regulator's operation, which can help in power management and reducing power consumption during standby or sleep modes.
• Protection Features: Equipped with over-current, over-temperature, and short-circuit protection, ensuring robustness and reliability in various operating conditions.
• High PSRR: Offers a power supply rejection ratio (PSRR) of 45dB at 1kHz, which helps in filtering out noise from the input supply and maintaining a clean output voltage.
• Compliance and Packaging: Complies with REACH and ROHS3 standards, ensuring environmental and regulatory compliance. It is available in a Tape & Reel (TR) package, facilitating automated assembly processes.

LP2985A-18DBVRG4 Applications

The LP2985A-18DBVRG4 is ideal for a variety of applications due to its combination of high efficiency, low dropout voltage, and compact size. Some specific use cases include:

• Consumer Electronics: Ideal for portable devices such as smartphones, tablets, and wearables where space and power efficiency are critical.
• Industrial Equipment: Suitable for industrial control systems and IoT devices that require a reliable and efficient power supply.
• Medical Devices: Can be used in medical equipment where precise voltage regulation and low power consumption are essential.
• Automotive Applications: Applicable in automotive electronics for powering various sensors and control modules.
• Communication Systems: Useful in communication devices and infrastructure where stable power supply and low noise are required.

Conclusion of LP2985A-18DBVRG4

The LP2985A-18DBVRG4 from Texas Instruments is a versatile and efficient linear voltage regulator that stands out due to its low dropout voltage, low quiescent current, and comprehensive protection features. Its fixed 1.8V output and ability to deliver up to 150mA make it suitable for a wide range of applications, from consumer electronics to industrial and medical devices. The inclusion of an enable pin and high PSRR further enhance its performance and flexibility. With its compact SOT23-5 package and compliance with environmental standards, the LP2985A-18DBVRG4 is an excellent choice for designers looking to optimize power management in their systems.