The LK112SM18TR from STMicroelectronics is a high-performance, low-dropout linear voltage regulator designed to deliver a continuous output current of up to 200 mA. This regulator is part of the LK112 series, known for its low quiescent current and low dropout voltage, making it an ideal choice for battery-powered applications and other systems where power efficiency is crucial.

Key Features

• Output Voltage: The device provides a stable 1.8V output, which is suitable for powering low-voltage digital circuits and microcontrollers.
• High Accuracy: It offers excellent output voltage accuracy, ensuring reliable performance for sensitive electronic components.
• Low Dropout: With a very low dropout voltage, the LK112SM18TR can operate efficiently even when the input voltage is close to the output voltage, minimizing power loss and extending battery life.
• Low Quiescent Current: The device features a low quiescent current, which reduces standby power consumption, making it ideal for portable devices.
• Thermal Protection: The built-in thermal shutdown and short-circuit protection safeguard the device and connected components from damage due to overheating or overcurrent conditions.
• Package: The regulator is available in a compact SOT-23 package, which is suitable for space-constrained applications.

Applications

The LK112SM18TR is versatile and can be used in a wide range of applications, including:

• Mobile Phones
• Portable Media Players
• Wireless Communication Devices
• Personal Digital Assistants (PDAs)
• Portable Instrumentation
• Microcontroller Power Supply

With its combination of features, the LK112SM18TR is a reliable choice for designers looking to enhance the power efficiency and performance of their electronic devices. Its robust protection features and low power consumption make it a go-to regulator for a multitude of low-power applications.