The LK112SM50TR from STMicroelectronics is a high-performance, low drop voltage regulator designed to provide a stable and reliable power supply in a wide range of electronic applications. This regulator is particularly suitable for battery-powered devices, thanks to its low quiescent current and low dropout voltage, ensuring maximum battery life.

Key Features

• Output Voltage: The device provides a fixed output voltage of 5V, which is ideal for powering standard digital circuits and ensuring consistent performance.
• Low Dropout Voltage: With a low dropout voltage of typically just 100mV at 100mA load, the LK112SM50TR ensures efficient operation even when the input voltage is close to the output voltage, making it perfect for use with low-voltage power supplies.
• High Output Accuracy: The output voltage is guaranteed to be within ±2% accuracy, providing a precise voltage supply for sensitive electronic components.
• Low Quiescent Current: The device features a very low quiescent current of typically 50µA in the off mode and 500µA in the on mode, which is essential for battery-operated devices to extend their usage time.
• Thermal Protection: The LK112SM50TR includes an internal thermal shutdown function that protects the device from damage due to overheating.
• Wide Operating Temperature Range: The device can operate over a broad temperature range from -40°C to 125°C, making it suitable for industrial applications.

Applications

The versatility of the LK112SM50TR makes it an excellent choice for a variety of applications, including:

• Battery-powered devices
• Portable media players
• Microcontroller power supply
• Mobile phones
• Personal digital assistants (PDAs)

Package and Availability

The LK112SM50TR voltage regulator is available in a compact SOT-23-5 package, which is suitable for space-constrained applications. It is supplied in tape and reel packaging, making it ideal for automated assembly processes. The product is available for order and can be sourced directly through STMicroelectronics or authorized distributors.