LK112SM60TR

Overview

The LK112SM60TR is a low-dropout linear regulator manufactured by STMicroelectronics, providing a fixed 6V output with a maximum current of 200mA. It operates within an input voltage range of 2.5V to 14V and features a shutdown function controlled by TTL or CMOS logic levels. The device exhibits a typical quiescent current of 250µA and a maximum dropout voltage of 500mV at full load. It maintains a voltage regulation accuracy of 2% and supports operation across a temperature range from -40°C to +125°C. Packaged in a SOT-23-5 surface-mount case, it includes protection features such as overcurrent limiting.

Feature Summary

• Integrated electronic switch for shutdown control via standard logic levels
• Low noise performance suitable for sensitive analog circuits
• Built-in thermal and current protection mechanisms

Applications

• Battery-powered portable devices requiring efficient power management
• Embedded systems needing stable 6V supply rails
• Industrial control modules operating in wide temperature environments

Procurement Notes

Verify the specific suffix '60' confirms the 6V fixed output variant, as the LK112S series offers multiple voltage options. Confirm the 'TR' suffix indicates tape-and-reel packaging if reel quantity is required. Ensure compatibility with SOT-23-5 footprint designs. Check RoHS compliance status against current manufacturing batches. Validate that the shutdown pin interface matches your system's logic voltage levels.

Selection Notes

Select this component when a fixed 6V output is required with minimal external components. Consider the 200mA limit for load requirements. Evaluate the 250µA quiescent current impact on battery life. Compare dropout characteristics against minimum input voltage constraints. Verify package availability for automated assembly processes.

Part Context

This part belongs to the LK112S family of low-dropout regulators featuring integrated shutdown capabilities. The series is designed for applications requiring high PSRR and low noise. Other variants in the family provide different fixed output voltages while sharing similar electrical characteristics and package styles. The LK112SM60TR specifically targets the 6V output segment of this portfolio.

Replacement Considerations

Direct substitutes include other LK112S variants with identical packages but different output voltages if voltage adjustment is possible. Cross-reference with other STMicroelectronics LDOs offering similar 200mA output and SOT-23-5 packaging. Verify pinout compatibility before substitution.