The L4931ABD25-TR is a high-performing low dropout voltage regulator designed and manufactured by STMicroelectronics, a global semiconductor leader known for its innovative and reliable products. This voltage regulator is part of the L4931 series, which is renowned for its low dropout, low quiescent current, and high accuracy features. It is an ideal solution for battery-powered devices, automotive applications, and other electronic systems requiring a stable and efficient power supply.

Key Features

• Output Voltage: The L4931ABD25-TR provides a fixed output voltage of 2.5V, which is suitable for powering a wide range of low-voltage electronics.
• Low Dropout Voltage: With a low dropout voltage of typically 0.4V at 150mA load, it ensures efficient operation even when the input voltage is close to the output voltage, thus conserving battery life in portable applications.
• High Output Current: This regulator can deliver up to 250mA of output current, making it capable of handling moderate loads with ease.
• Low Quiescent Current: The quiescent current is very low, typically 0.4mA, which minimizes power consumption when the device is in standby mode.
• Thermal Overload Protection: The L4931ABD25-TR includes thermal overload protection that shuts down the output if the temperature exceeds safe operating limits, preventing damage to the device.
• Short Circuit Protection: Built-in short circuit protection ensures the longevity of the regulator and the safety of the application during accidental short circuits.

Applications

The L4931ABD25-TR is versatile and can be used in a variety of applications, including:

• Automotive electronics
• Portable battery-powered devices
• Microcontroller power supply
• Mobile phones and communication devices
• Peripheral and accessory power supplies

Package and Availability

The device is available in a small surface-mount package (SO-8), which is suitable for space-constrained applications. The part number L4931ABD25-TR indicates that the product is provided in tape and reel packaging, which facilitates automated assembly processes for high-volume production.

Conclusion

With its robust feature set and reliable performance, the L4931ABD25-TR from STMicroelectronics is an excellent choice for designers looking for a low dropout voltage regulator that offers both efficiency and precision in a compact form factor.