STMicroelectronics

L4938ED013TR

L4938ED013TR Description

The L4938ED013TR is a dual linear voltage regulator designed by STMicroelectronics, featuring an adjustable output voltage with a fixed 5V setting. This regulator is designed for surface-mount applications and is housed in a 20SO package. It supports a maximum input voltage of 28V and provides two regulators with output currents of 100mA and 400mA. The output configuration is positive, and the regulator offers a minimum output voltage of 4.9V and a maximum of 5.1V. The dropout voltage is 0.4V at 100mA and 0.6V at 400mA, ensuring efficient operation even at high current loads. The device is classified as obsolete but remains unaffected by REACH regulations. It has a moisture sensitivity level (MSL) of 3, allowing for 168 hours of exposure, and is categorized under ECCN EAR99. The product is available in a tape and reel package, making it suitable for automated assembly processes.

L4938ED013TR Features

• Dual Regulators: The L4938ED013TR features two independent regulators, providing flexibility in power management for multiple circuits.
• Adjustable and Fixed Output: The regulator offers an adjustable output voltage with a fixed 5V setting, making it suitable for applications requiring a stable 5V supply.
• High Input Voltage Range: With a maximum input voltage of 28V, the regulator can handle a wide range of input voltages, ensuring compatibility with various power sources.
• Low Dropout Voltage: The dropout voltage of 0.4V at 100mA and 0.6V at 400mA ensures high efficiency, especially under high current loads.
• Protection Features: The regulator includes over-temperature protection, safeguarding the device and connected circuits from thermal damage.
• Control Features: The L4938ED013TR offers enable and reset control features, providing additional control over the regulator's operation.
• Surface Mount Compatibility: The regulator is designed for surface-mount applications, making it ideal for modern PCB designs and automated assembly processes.

L4938ED013TR Applications

The L4938ED013TR is ideal for applications requiring a stable 5V supply with dual regulators. Its low dropout voltage and high input voltage range make it suitable for a variety of electronic devices, including:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and other portable electronics that require a stable 5V supply.
• Industrial Equipment: Suitable for industrial applications where a reliable power supply is crucial, such as in control systems and automation equipment.
• Telecommunications: The regulator can be used in telecommunication equipment, providing a stable power supply for critical components.
• Automotive Electronics: The high input voltage range and low dropout voltage make it suitable for automotive applications where the power supply can vary significantly.

Conclusion of L4938ED013TR

The L4938ED013TR is a versatile dual linear voltage regulator designed for surface-mount applications. Its adjustable and fixed 5V output, combined with low dropout voltage and high input voltage range, make it suitable for a wide range of applications. The inclusion of over-temperature protection and control features enhances its reliability and usability. Despite being classified as obsolete, the L4938ED013TR remains unaffected by REACH regulations and continues to be a reliable choice for applications requiring a stable 5V supply.