STMicroelectronics L4931CD27-TR Low Dropout Voltage Regulator

The L4931CD27-TR is a high-performance, low dropout voltage regulator designed by STMicroelectronics, a leader in the semiconductor industry. This low dropout (LDO) regulator is specifically engineered to maintain a stable output voltage even when the input voltage is very close to the output voltage, making it ideal for battery-powered devices and other applications where power efficiency is critical.

With an output voltage of 2.7 volts and the capability to deliver up to 250 mA of output current, the L4931CD27-TR is well-suited for low-power applications. Its low dropout voltage allows for a minimal difference between the input and output voltages, which in turn reduces power loss and improves overall efficiency.

The device features a very low quiescent current, which is particularly beneficial for battery-operated equipment as it prolongs battery life. Additionally, the L4931CD27-TR includes thermal shutdown and current limiting functionalities, providing reliable protection for both the regulator and the powered device against excessive temperature and overcurrent conditions.

STMicroelectronics has packaged the L4931CD27-TR in a compact DPAK (TO-252), which is suitable for surface-mount technology (SMT), allowing for efficient use of PCB space. This makes the L4931CD27-TR a versatile choice for a wide array of applications, including mobile phones, portable media players, and other portable electronic devices where space is at a premium.

The regulator's low noise operation, without the need for an additional noise bypass capacitor, makes it an excellent choice for noise-sensitive applications such as audio and RF systems. The L4931CD27-TR also features a low-temperature coefficient, ensuring stable operation over a wide temperature range, which is essential for outdoor and automotive applications.

Overall, the L4931CD27-TR from STMicroelectronics is a robust and reliable LDO voltage regulator that provides a high-efficiency solution for a variety of electronic devices, combining performance with practicality in a small form factor.