STMicroelectronics LK112M40TR Low-Dropout Voltage Regulator

The LK112M40TR from STMicroelectronics is a high-performance, low-dropout (LDO) voltage regulator designed for applications requiring a stable and clean power supply. This LDO regulator is well-suited for battery-powered devices, portable electronics, and any other systems where power efficiency is crucial.

Key Features

• Output Voltage: The LK112M40TR offers a fixed output voltage of 4.0V, which is ideal for powering 3.3V digital circuits with additional margin or other circuits requiring a 4.0V supply.
• Low Dropout: With a very low dropout voltage, this regulator maintains regulation even when the input voltage is very close to the output voltage, enhancing system efficiency.
• Current Capacity: It can deliver up to 200 mA of continuous output current, sufficient for a wide range of low-power applications.
• Low Quiescent Current: The device features a low quiescent current, which is particularly beneficial for battery-powered applications as it extends battery life.
• Thermal Protection: The LK112M40TR includes thermal shutdown protection that safeguards the device from damage due to overheating.
• Short Circuit Protection: Built-in short circuit protection ensures the longevity of the regulator and the safety of the application during accidental shorts.
• Package: Available in a SOT-23-5 package, the LK112M40TR is compact and suitable for space-constrained applications.

Applications

The LK112M40TR's combination of features makes it an excellent choice for a variety of applications, including:

• Mobile phones and PDAs
• Portable media players
• Portable gaming devices
• GPS receivers
• Healthcare and medical devices
• Smart sensors and IoT devices

Conclusion

The LK112M40TR LDO voltage regulator from STMicroelectronics is a reliable and efficient solution for systems that require a clean, stable power supply. Its low dropout performance, coupled with robust protection features, makes it a versatile component for a wide range of electronic devices.