LD2981CM38TR Voltage Regulator by STMicroelectronics

The LD2981CM38TR is a high-quality voltage regulator component designed and manufactured by the renowned semiconductor company, STMicroelectronics. This device is part of the LD2981 series, known for its low dropout (LDO) linear regulators that offer a compact, efficient, and reliable solution for voltage regulation in a wide range of electronic applications.

The LD2981CM38TR comes in a robust SOT-23 package, which is not only space-saving but also conducive for automated assembly processes, making it an ideal choice for mass-produced consumer electronics. The device provides a fixed output voltage of 3.8V, with an impressive accuracy of ±1%, ensuring stable and consistent performance for sensitive electronic circuits.

One of the standout features of this LDO regulator is its low dropout voltage, which enables it to maintain regulation with a minimal difference between the input and output voltages. This characteristic is particularly beneficial in battery-operated devices where maximizing battery life is crucial. The LD2981CM38TR can support an input voltage range from 2.5V to 16V, providing versatility for different power supply configurations.

With a maximum output current of 100mA, the LD2981CM38TR is suitable for low-power applications such as microcontrollers, memory devices, and other digital logic circuits. It also includes thermal shutdown and current limiting features to protect the device and the application from damage due to overheating or excessive current draw.

The LD2981CM38TR is also characterized by its low quiescent current, which is a mere 0.2μA in shutdown mode, further contributing to the overall energy efficiency of the end product. This makes it an excellent choice for portable and wearable devices where power conservation is paramount.

In summary, the LD2981CM38TR from STMicroelectronics is a reliable and efficient voltage regulator that offers a fixed 3.8V output with low dropout, low quiescent current, and robust protection features. Its compact SOT-23 package and compatibility with a broad range of input voltages make it a versatile component for a myriad of electronic applications.