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The LD39015M33R is a fixed-output linear low-dropout voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 3.3V with a maximum continuous output current of 150mA. The device operates within an input voltage range from 1.5V to 5.5V and features a typical dropout voltage of 80mV at 100mA load. Key electrical parameters include a quiescent current of 50µA, power supply rejection ratio (PSRR) of 65dB at 1kHz, and an operating temperature range of -40°C to 125°C. It utilizes SOT-23-5 packaging.
Verify the specific suffix 'M33R' corresponds to the 3.3V fixed output and SOT-23-5 tape-and-reel packaging configuration. Confirm that the component meets RoHS3 compliance standards as indicated in official documentation. Ensure compatibility with the required input voltage range and load conditions before integration into the final design.
Select this component for applications requiring a stable 3.3V rail with minimal voltage drop under moderate loads. The low quiescent current makes it suitable for portable devices where battery longevity is critical. Verify that the system input voltage remains within the specified 1.5V to 5.5V range to ensure proper regulation and protection functionality activation.
This part belongs to the LD39015 series of low-quiescent-current, low-noise voltage regulators. The series is designed for low-power applications, offering various fixed output voltages and packages. The LD39015M33R specifically denotes the 3.3V output variant in the SOT-23-5 package, sharing core features like enable logic and protection circuits with other members of the family.
Publicly confirmed substitute part numbers are not available in the provided source material.