STMicroelectronics LD2981CM25TR Voltage Regulator

The LD2981CM25TR from STMicroelectronics is a high-performance, low-dropout voltage regulator designed to deliver a fixed output voltage of 2.5V with an accuracy of ±1% at 100 mA load. This device is part of the LD2981 series, which is renowned for its low dropout voltage and low quiescent current, making it an excellent choice for battery-powered applications where extending battery life is critical.

The LD2981CM25TR operates over a wide input voltage range from 2.5V to 16V, providing a stable and reliable power supply even under varying input conditions. Its low dropout voltage of just 120 mV at 100 mA load ensures efficient operation, minimizing power loss and heat generation, which is particularly beneficial in compact electronic devices.

One of the key features of this voltage regulator is its low quiescent current, typically just 0.2 mA, which helps to further conserve power in standby and idle modes. Additionally, the LD2981CM25TR includes thermal shutdown and short-circuit protection features, enhancing the safety and durability of the end application by preventing damage from over-temperature conditions and output short circuits.

The device is packaged in a SOT-23-5 package, which is a small surface-mount package that allows for high-density mounting on circuit boards, saving valuable board space in space-constrained applications. The LD2981CM25TR is also characterized by a wide operating temperature range from -40°C to +125°C, making it suitable for use in a variety of environments and applications.

Applications for the LD2981CM25TR include mobile phones, personal digital assistants (PDAs), laptop computers, and other portable devices where efficient power management is essential. Its stable output and low power consumption make it an ideal choice for powering microcontrollers, low-power logic, and other sensitive electronic components.

In summary, the LD2981CM25TR from STMicroelectronics is a reliable and efficient solution for applications requiring a fixed 2.5V output with low dropout, low quiescent current, and a small package footprint. Its robust protection features and wide operating temperature range ensure performance and durability in a range of challenging conditions.