The L4940D2M5-TR from STMicroelectronics is a robust, low-dropout voltage regulator designed to deliver a fixed output of 5V with a maximum current of up to 1.5A. This high-performance regulator is ideal for use in a wide range of electronic applications, including microcontroller systems, automotive electronics, and other digital devices that require a stable and reliable power supply.

Key Features

• Precision Output: The device provides a precise 5V output with a tight tolerance, ensuring reliable operation of sensitive electronic circuits.
• Low Dropout Voltage: With a very low dropout voltage, the L4940D2M5-TR can operate efficiently even when the input voltage is close to the output voltage, making it suitable for battery-powered applications.
• High Current Capability: Capable of delivering up to 1.5A, this voltage regulator can support applications with higher current demands.
• Thermal Overload Protection: The built-in thermal shutdown feature protects the device from damage due to overheating, enhancing its reliability and lifespan.
• Short Circuit Protection: The regulator includes short-circuit protection, safeguarding both the device and the application from potential damage caused by output short circuits.
• Low Quiescent Current: It has a low standby current, which is beneficial for battery-powered devices where power conservation is critical.

Applications

The L4940D2M5-TR is versatile and can be used in a variety of applications. Its robustness and reliability make it an excellent choice for:

• Automotive electronics
• Microcontroller power supplies
• Portable devices
• Industrial control systems

Package Information

The voltage regulator is available in a surface-mount TO-263 package, known as D2PAK, which is suitable for automated assembly processes and helps to save space on printed circuit boards (PCBs).

Conclusion

With its high current capability, low dropout voltage, and protective features, the L4940D2M5-TR voltage regulator from STMicroelectronics is an excellent choice for designers looking for a reliable power management solution. Its compact form factor and robust performance make it a go-to component for a wide range of electronic applications.