STMicroelectronics

L4938ND013TR

L4938ND013TR Description

The L4938ND013TR is a dual linear regulator IC designed for precision power management applications. Manufactured by STMicroelectronics, this device features an adjustable and fixed output type, providing flexibility in voltage regulation. It supports a maximum input voltage of 25V and offers two regulators with output currents of 50mA and 500mA, respectively. The output configuration is positive, ensuring stable and reliable power delivery. Despite being marked as obsolete, the L4938ND013TR remains a viable option for legacy systems and specific applications where its unique features are advantageous.

L4938ND013TR Features

• Adjustable and Fixed Output: The L4938ND013TR provides a fixed output voltage of 5V and an adjustable output with tracking capabilities, allowing for precise voltage regulation in diverse applications.
• Dual Regulators: Equipped with two regulators, this IC can manage multiple power rails simultaneously, enhancing system efficiency and reliability.
• Low Dropout Voltage: With a maximum dropout voltage of 0.4V at 50mA and 0.6V at 500mA, the L4938ND013TR ensures high efficiency even under low input-to-output voltage differentials.
• Control and Protection Features: The device includes enable and reset control features, as well as over-temperature and short-circuit protection, safeguarding the system from potential faults.
• Surface Mount Packaging: The L4938ND013TR is available in a surface mount package (Tape & Reel), facilitating easy integration into modern PCB designs.
• Compliance and Reliability: The IC is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory adherence. It also has a moisture sensitivity level (MSL) of 1, making it suitable for various manufacturing environments.

L4938ND013TR Applications

The L4938ND013TR is ideal for applications requiring precise voltage regulation and dual power rail management. Its low dropout voltage and adjustable output make it suitable for battery-powered devices, where efficiency and flexibility are crucial. The dual regulators enable the simultaneous management of different voltage levels, enhancing the performance of multi-rail systems. Specific use cases include:

• Battery-Powered Devices: Ideal for portable electronics where battery life and efficiency are paramount.
• Multi-Rail Systems: Suitable for complex electronic systems requiring multiple regulated power supplies.
• Legacy Systems: Given its obsolete status, the L4938ND013TR is a reliable choice for maintaining existing systems where replacement components are still required.

Conclusion of L4938ND013TR

The L4938ND013TR from STMicroelectronics is a robust dual linear regulator IC that offers adjustable and fixed output options, catering to a wide range of power management needs. Its low dropout voltage, dual regulators, and comprehensive protection features make it a reliable choice for both new designs and legacy systems. Despite being marked as obsolete, the L4938ND013TR remains a valuable component for applications where its unique capabilities are essential.