STMicroelectronics L4940V5 Low Drop Voltage Regulator

The L4940V5 is a robust low drop voltage regulator from STMicroelectronics, designed to deliver a fixed 5V output with a remarkable accuracy and stability. This regulator is part of the L4940 series, which is renowned for its high performance in a wide range of applications that require a reliable power supply solution.

With an ability to handle up to 1.5A of output current, the L4940V5 is perfectly suited for supplying power to microcontrollers, sensors, and other digital systems that demand a steady 5V supply. Its low dropout voltage of just 450mV at maximum output current ensures efficient operation even when the input voltage is close to the output voltage, making it an ideal choice for battery-powered devices where every volt counts.

One of the standout features of the L4940V5 is its thermal shutdown and current limiting, which provide essential protection against conditions that could potentially damage the connected components. The thermal shutdown feature ensures that the device automatically turns off when it reaches a critical temperature, while the current limiting function prevents the output current from exceeding a safe level.

The L4940V5 is also equipped with a ripple rejection feature, which minimizes the amount of noise on the output voltage, thus ensuring a clean and stable voltage supply that is crucial for sensitive electronics. This makes the L4940V5 an excellent choice for audio applications, precision instruments, and other devices that are sensitive to power supply noise.

Available in a TO-220 package, the L4940V5 is easy to integrate into a wide range of circuit designs. Its robustness and reliability are further enhanced by its wide operating temperature range, which allows it to function effectively in both commercial and industrial environments.

In summary, the L4940V5 from STMicroelectronics is a versatile, high-performance low drop voltage regulator that offers a combination of features designed to provide a reliable, clean, and efficient power supply to a variety of electronic devices.