LDK130M15R

Overview

The STMicroelectronics LDK130M15R is a low-dropout linear voltage regulator providing a fixed 1.5 V output with a maximum load current of 300 mA. It operates within an input voltage range of 1.9 V to 5.5 V and features a typical dropout voltage of 100 mV at 100 mA. The device exhibits a quiescent current of 120 µA and includes logic-controlled shutdown functionality reducing consumption below 1 µA. Packaged in a surface-mount SOT-23-5L format, it supports operation from -40 °C to +125 °C.

Feature Summary

• Logic-controlled electronic shutdown for ultra-low power consumption
• Stabilized with ceramic capacitors for compact design
• Integrated short-circuit constant current limiting and thermal protection

Applications

• Low-power battery-powered applications
• Automotive electronics requiring AEC-Q100 qualification
• Noise-sensitive circuit power supplies

Procurement Notes

Verify the specific suffix 'R' against the manufacturer's official documentation to confirm packaging details such as reel or cut tape specifications. Ensure the component matches the required automotive grade and package variant for your design implementation.

Selection Notes

Select this regulator when a fixed 1.5 V rail is required with minimal footprint. It is suitable for designs needing high line regulation and low noise. Verify that the input voltage remains within the specified 1.9 V to 5.5 V range to ensure proper dropout performance.

Part Context

This component belongs to the LDK130 series of low-dropout regulators designed for automotive and industrial applications. The series offers various fixed output voltages and packages, including SOT23-5L, SOT323-5L, and DFN6, catering to diverse space-constrained requirements.

Replacement Considerations

Consult the official datasheet for confirmed substitute part numbers within the same family. Cross-referencing requires matching output voltage, current capability, and package type.