Analog Devices Inc.

LT3081EDF

LT3081EDF Description

The LT3081EDF is a high-performance linear regulator from Analog Devices Inc., designed to deliver adjustable output voltage with a maximum output current of 1.5A. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a surface-mount 12DFN package, making it suitable for compact and efficient power solutions. Despite being marked as obsolete, the LT3081EDF remains a robust choice for applications requiring precise voltage regulation and protection features.

LT3081EDF Features

• Adjustable Output Voltage: The LT3081EDF offers an adjustable output voltage ranging from 0V to 34.5V, providing flexibility for a wide range of applications.
• High Input Voltage Range: With a maximum input voltage of 36V, this regulator can handle a broad spectrum of input sources, enhancing its versatility.
• Low Dropout Voltage: The maximum dropout voltage is 1.5V at 1.5A, ensuring efficient power conversion even at high load currents.
• Low Quiescent Current: The quiescent current is as low as 50 µA, which is beneficial for applications where power consumption needs to be minimized.
• Excellent PSRR: The power supply rejection ratio (PSRR) ranges from 90dB at 120Hz to 20dB at 1MHz, ensuring clean and stable output voltage.
• Protection Features: The LT3081EDF includes over-current, over-temperature, reverse polarity, and short-circuit protection, safeguarding the device and connected circuits.
• Current Limiting: The regulator features current limiting, which helps prevent damage due to excessive current draw.
• Moisture Sensitivity Level: MSL 1 (Unlimited) indicates that the device is not sensitive to moisture, making it suitable for various environmental conditions.

LT3081EDF Applications

The LT3081EDF is ideal for applications that require precise and reliable voltage regulation. Its adjustable output voltage and high input voltage range make it suitable for a variety of power management tasks, including:

• Industrial Equipment: Providing stable power to sensitive industrial electronics and control systems.
• Telecommunications: Ensuring reliable power supply for communication infrastructure components.
• Medical Devices: Supplying accurate power to medical equipment where precision and reliability are critical.
• Automotive Electronics: Offering robust power solutions for automotive applications that demand high reliability and protection against harsh conditions.

Conclusion of LT3081EDF

While the LT3081EDF is marked as obsolete, its technical specifications and performance benefits make it a reliable choice for applications requiring high precision and robust protection features. The adjustable output voltage, low dropout voltage, and comprehensive protection mechanisms ensure that this regulator can meet the demands of various power management tasks. For engineers and designers seeking a proven solution for their power management needs, the LT3081EDF remains a viable option despite its obsolescence status.