The LK112M55TR from STMicroelectronics is a highly efficient, low-dropout voltage regulator (LDO) designed to provide a stable and reliable power supply in a variety of electronic applications. This compact LDO is particularly suitable for battery-powered devices, where power efficiency is critical, and space is at a premium.

Key Features

• Output Voltage: The LK112M55TR offers a fixed output voltage of 5.5V, which is ideal for powering standard digital circuits and ensuring consistent performance.
• Low Dropout: With a low dropout voltage, this regulator can maintain output voltage regulation with a minimal difference between the input and output voltages, making it highly efficient in battery-operated devices.
• High Accuracy: The output voltage is guaranteed with high accuracy, ensuring that connected components receive a stable and precise voltage supply.
• Current Limiting: Built-in current limiting protects the device and the load from damage due to overcurrent conditions, enhancing system reliability.
• Thermal Protection: The LK112M55TR includes thermal shutdown protection, which prevents the regulator from overheating, thereby safeguarding the longevity of both the regulator and the application it powers.
• Low Quiescent Current: This regulator is designed with a low quiescent current, which reduces power consumption when the device is in standby mode, further extending battery life in portable applications.
• Package: The device comes in a compact SOT-23-5 package, which is suitable for high-density PCB layouts and is easy to integrate into a wide range of applications.

Applications

The LK112M55TR voltage regulator is versatile and can be used in various applications such as:

• Mobile phones and PDAs
• Portable media players
• GPS devices
• Portable medical equipment
• Low-power handheld devices

With its combination of efficiency, accuracy, and protective features, the LK112M55TR from STMicroelectronics is an excellent choice for designers looking to optimize their power management solutions in space-constrained and power-sensitive applications.