STMicroelectronics Voltage Regulator LDLN025PU12R 5.5V DFN 4-Pin Ultra Low Noise 6.5 μVRMS 125°C

STMicroelectronics LDLN025PU12R Voltage Regulator is designed for precision power management in compact electronics, featuring a ultra low output noise of 6.5 μVRMS that ensures signal integrity in sensitive equipment. This regulator supports an operating input voltage range from 1.5 V to 5.5 V and supplies output currents up to 250 mA with a very low dropout voltage of 250 mV at full load, making it highly efficient for battery-powered and portable devices.

The device boasts a very low quiescent current of 12 μA when no load is applied and maintains a controlled current consumption in dropout conditions. Its high power supply rejection ratio (PSRR) of 80 dB at 100 Hz and 60 dB at 100 kHz helps filter out input noise, enhancing overall system performance.

Output voltage versions are available from 1 V to 5 V with 50 mV step increments, offering versatile configuration options with an accuracy of ±2% across line, load, and temperature variations. Safety features include logic-controlled electronic shutdown, output discharge capabilities, internal soft-start, and protections against overcurrent and thermal overload, ensuring robustness and reliability in industrial and consumer electronics applications.

The LDNL025PU12R is housed in a miniature surface mount DFN 4-pin package measuring 1.05 mm by 1.05 mm with a 350 μm height, enabling space-saving PCB layouts. It operates within a temperature range from -40 °C to +125 °C, suitable for automotive and industrial environments. This product is manufactured in the Philippines and supports applications requiring compact, efficient power regulation such as portable devices, consumer electronics, telecommunications, and embedded systems.

Ultra low noise voltage output of 6.5 μVRMS ensures minimal signal interference. Wide operating input voltage range of 1.5 V to 5.5 V for flexible design. Low quiescent current of 12 μA enhances battery life in portable devices.

Maximum output current up to 250 mA with low dropout voltage increases efficiency. Multiple output voltage options from 1 V to 5 V with tight accuracy. Includes logic-controlled shutdown and output discharge for power-saving.

Internal protections ensure device safety under fault conditions. Compact DFN 4-Pin package suitable for modern surface-mount technology. Explore EnvMart’s extensive range of industrial and electronic components for your next hardware design or manufacturing project.