STMicroelectronics

L4938EDTR-E  

Linear & Switching Voltage Regulators

L4938EDTR-E Description

The L4938EDTR-E is a high-performance linear regulator designed for power management applications. Manufactured by STMicroelectronics, this IC offers adjustable and fixed output voltage configurations, making it versatile for a wide range of electronic systems. The device features a maximum input voltage of 28V and supports dual regulators, each capable of delivering up to 100mA and 400mA of output current. With a positive output configuration and a dropout voltage of 0.4V at 100mA and 0.6V at 400mA, the L4938EDTR-E ensures efficient power delivery even under varying load conditions.

L4938EDTR-E Features

• Output Type: The L4938EDTR-E offers both adjustable and fixed output voltage options, providing flexibility in design. The fixed output voltage is set at 5V, with a minimum of 4.9V and a maximum of 5.1V.
• Input Voltage Range: The regulator can handle a maximum input voltage of 28V, making it suitable for applications with a wide range of input power sources.
• Output Current: The dual regulators support output currents of 100mA and 400mA, catering to different power requirements within a single package.
• Low Dropout Voltage: With a dropout voltage of 0.4V at 100mA and 0.6V at 400mA, the L4938EDTR-E ensures high efficiency and minimal power loss, even at low input-to-output voltage differentials.
• Control Features: The device includes enable and reset control features, allowing for precise control over the regulator's operation.
• Protection Features: Over-temperature protection ensures the device operates within safe temperature limits, enhancing reliability and longevity.
• Compliance: The L4938EDTR-E is REACH unaffected and RoHS3 compliant, meeting stringent environmental and regulatory standards.
• Moisture Sensitivity Level: With an MSL of 3 (168 hours), the device is suitable for surface mount applications without significant risk of moisture-related damage.
• Packaging: The L4938EDTR-E is available in a surface mount package, specifically in tape and reel (TR) format, facilitating automated assembly processes.

L4938EDTR-E Applications

The L4938EDTR-E is ideal for a variety of applications requiring efficient and reliable power management. Its dual regulators and adjustable output voltage make it suitable for:

• Consumer Electronics: Ideal for powering devices such as smartphones, tablets, and portable gaming consoles, where precise voltage regulation and low power consumption are critical.
• Industrial Equipment: Suitable for industrial control systems and automation equipment, where robustness and reliability are paramount.
• Medical Devices: Applicable in medical monitoring equipment and diagnostic tools, where stable power supply and low dropout voltage are essential.
• Automotive Electronics: Useful in automotive infotainment systems and electronic control units, where the device's wide input voltage range and low dropout voltage ensure stable operation across varying battery conditions.

Conclusion of L4938EDTR-E

The L4938EDTR-E from STMicroelectronics stands out as a versatile and efficient linear regulator, offering adjustable and fixed output voltage options, low dropout voltage, and robust protection features. Its dual regulators and wide input voltage range make it suitable for a broad range of applications, from consumer electronics to industrial and medical devices. The device's compliance with environmental and regulatory standards, along with its surface mount packaging, further enhances its appeal for modern electronics design. The L4938EDTR-E is an excellent choice for engineers seeking a reliable and efficient power management solution.

L4938EDTR-E Documents

Download datasheets and manufacturer documentation for L4938EDTR-E