STMicroelectronics

L4937N  

Linear & Switching Voltage Regulators

L4937N Description

The L4937N is a linear voltage regulator from STMicroelectronics, specifically designed for applications requiring a fixed 5V output. With its 7-heptawatt package, it offers a compact and efficient solution for low-power electronics. This obsolete product, while no longer in production, still offers significant performance benefits in certain applications.

L4937N Features

• Output Type: Fixed, ensuring a stable output voltage.
• Voltage - Input (Max): 25V, providing a wide input voltage range.
• Current - Output: 50mA and 500mA options, catering to different power requirements.
• Number of Regulators: 2, allowing for dual output configurations.
• Output Configuration: Positive, suitable for standard power supply needs.
• Voltage - Output (Min/Fixed): 5V, with tracking capability for consistent performance.
• Voltage Dropout (Max): 0.4V @ 50mA and 0.6V @ 500mA, ensuring efficient power delivery.
• Control Features: Enable and Reset, providing control over the regulator's operation.
• Protection Features: Over Temperature and Short Circuit, safeguarding the device and the system.

L4937N Applications

The L4937N is ideal for applications where a stable 5V output is required, such as:

• Low-power consumer electronics: Due to its low dropout voltage and ability to handle low to medium currents.
• Portable devices: Its small form factor and low power consumption make it suitable for battery-powered devices.
• Industrial control systems: The L4937N's robust protection features and ability to handle a wide input voltage range make it a reliable choice for industrial applications.

Conclusion of L4937N

While the L4937N has been classified as obsolete, it remains a viable option for certain low-power applications due to its fixed output, dual regulator configuration, and robust protection features. Its compact 7-heptawatt package and ability to handle a wide input voltage range make it suitable for a variety of applications, particularly in low-power consumer electronics and portable devices. Despite its age, the L4937N continues to offer reliable performance in specific use cases where its unique features are advantageous.

L4937N Documents

Download datasheets and manufacturer documentation for L4937N

Datasheets :

L4937N      

HTML Datasheet :

L4937N