STMicroelectronics L4940D2M5 Low Drop Voltage Regulator

The L4940D2M5 from STMicroelectronics is a robust low drop voltage regulator designed to deliver a fixed output with high accuracy. This device is particularly suitable for applications that require a stable and reliable power supply, with the added benefit of a low dropout voltage. The L4940D2M5 offers an output voltage of 5V, which is maintained with precision, making it an ideal choice for powering sensitive electronic circuits.

Constructed with an advanced bipolar technology, the L4940D2M5 is capable of providing up to 500 mA of output current. This current capability, combined with a low dropout voltage of typically just 450 mV at maximum output current, ensures efficient operation even when the input voltage is close to the output voltage, minimizing power losses and improving overall system efficiency.

The L4940D2M5 incorporates several protective features that safeguard the device and the powered application against a variety of common fault conditions. These include thermal shutdown, which prevents the regulator from overheating, and short-circuit protection, which limits the current in the event of an output short. Additionally, the device includes a SOA (Safe Operating Area) protection, ensuring reliable operation under varying conditions.

This voltage regulator comes in a compact and versatile SOT-89 package, which is not only space-efficient but also allows for ease of integration into a wide range of electronic systems. Whether you are designing consumer electronics, automotive modules, or industrial controls, the L4940D2M5 provides a dependable power solution that meets stringent performance criteria.

With its stable output, low dropout performance, and protective features, the L4940D2M5 from STMicroelectronics is a top choice for engineers and designers looking to enhance the reliability and efficiency of their power management designs. Its combination of performance, protection, and packaging makes this voltage regulator a versatile component for numerous applications.