Texas Instruments

LM3490IM5X-5.0

LM3490IM5X-5.0 Description

The LM3490IM5X-5.0 is a fixed output linear voltage regulator designed by Texas Instruments. This regulator is part of the Linear & Switching Voltage Regulators category and is known for its reliable performance and compact design. It features a fixed output voltage of 5V and can deliver up to 100mA of current. The regulator is designed to operate with an input voltage range up to 30V, making it suitable for a variety of applications requiring stable power supply. The LM3490IM5X-5.0 is housed in a Surface Mount SOT23-5 package, which is ideal for space-constrained designs. Despite being marked as obsolete, it remains a viable option for legacy systems and specific applications where its unique features are required.

LM3490IM5X-5.0 Features

• Fixed Output Voltage: The LM3490IM5X-5.0 provides a stable 5V output, ensuring consistent power supply to connected devices.
• High Input Voltage Range: With a maximum input voltage of 30V, this regulator can handle a wide range of input voltages, making it versatile for various power supply scenarios.
• Low Dropout Voltage: The maximum dropout voltage of 1.2V at 100mA ensures efficient power conversion, even at low input-to-output voltage differences.
• Enable Control Feature: The regulator includes an enable feature, allowing for dynamic control of the power supply, which is beneficial for power management in complex systems.
• Short Circuit Protection: Built-in short circuit protection safeguards the regulator and connected components from damage due to overcurrent conditions.
• Low Quiescent Current: A quiescent current of only 4mA minimizes power consumption during operation, enhancing overall system efficiency.
• Moisture Sensitivity Level 1: The regulator is rated for unlimited exposure to moisture, making it suitable for a wide range of environmental conditions.
• Surface Mount Packaging: The SOT23-5 package is ideal for surface mount technology, facilitating compact and reliable PCB designs.

LM3490IM5X-5.0 Applications

The LM3490IM5X-5.0 is well-suited for applications requiring a stable 5V power supply with efficient power management. Its compact size and surface mount packaging make it ideal for:

• Consumer Electronics: Powering small devices and peripherals that require a stable 5V supply.
• Industrial Control Systems: Providing reliable power to sensors, actuators, and microcontrollers in industrial environments.
• Telecommunications: Supplying power to low-power communication modules and interfaces.
• Automotive Electronics: Suitable for automotive applications where space and efficiency are critical.
• Legacy Systems: Ideal for maintaining and upgrading older systems that rely on fixed voltage regulators.

Conclusion of LM3490IM5X-5.0

Despite its obsolete status, the LM3490IM5X-5.0 remains a robust and reliable option for applications requiring a stable 5V output. Its low dropout voltage, enable control feature, and short circuit protection make it a versatile and efficient regulator. The compact SOT23-5 package and surface mount design ensure it fits seamlessly into modern PCB designs. While newer alternatives may offer additional features, the LM3490IM5X-5.0 continues to provide reliable performance for specific use cases and legacy systems.