STMicroelectronics

LDS3985PU18RY  

Linear & Switching Voltage Regulators

LDS3985PU18RY Description

The LDS3985PU18RY is a high-performance linear regulator designed by STMicroelectronics, a leading manufacturer in the electronics industry. This device is part of the Power Management Integrated Circuits (PMIC) category and is specifically tailored for automotive applications. The regulator offers a fixed output voltage of 1.8V and can deliver a maximum output current of 300mA. It features a maximum input voltage of 6V and a low dropout voltage of 0.25V at 300mA, ensuring efficient power conversion even under low input-to-output voltage differentials.

LDS3985PU18RY Features

• Output Type: Fixed, providing a stable 1.8V output voltage.
• Input Voltage Range: Up to 6V, making it suitable for a wide range of input power sources.
• Output Current: Capable of delivering up to 300mA, sufficient for powering various electronic components.
• Low Dropout Voltage: 0.25V at 300mA, ensuring high efficiency and minimal power loss.
• Low Quiescent Current: 150 µA, which helps in reducing power consumption during standby or low-load conditions.
• Supply Current: Maximum of 300 µA, contributing to overall power efficiency.
• Control Features: Includes a shutdown function, allowing for power-saving modes and controlled power management.
• Protection Features: Over-temperature protection ensures reliability and longevity of the device.
• Output Configuration: Positive, providing a straightforward and reliable power supply.
• Mounting Type: Surface Mount, suitable for compact and modern PCB designs.
• Package: Tape & Reel (TR), facilitating easy handling and automated assembly processes.
• Compliance: ROHS3 compliant and REACH unaffected, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level (MSL): Level 3 (168 Hours), suitable for standard manufacturing processes.

LDS3985PU18RY Applications

The LDS3985PU18RY is ideal for automotive applications where reliability, efficiency, and compact design are crucial. Its low dropout voltage and high efficiency make it suitable for powering various electronic modules in vehicles, such as:

• Infotainment Systems: Providing stable power to car radios, GPS units, and other multimedia devices.
• Instrument Clusters: Ensuring reliable power supply to speedometers, fuel gauges, and other dashboard instruments.
• ECUs (Electronic Control Units): Supplying power to critical control units that manage engine performance, transmission, and other vehicle systems.
• Sensors and Actuators: Powering various sensors and actuators used in modern vehicles for monitoring and control functions.

Conclusion of LDS3985PU18RY

The LDS3985PU18RY from STMicroelectronics stands out as a robust and efficient linear regulator, particularly suited for automotive applications. Its low dropout voltage and low quiescent current make it highly efficient, while features like over-temperature protection and shutdown control enhance its reliability and versatility. The device's compliance with environmental and regulatory standards ensures it meets the demands of modern automotive manufacturing. Whether powering infotainment systems, instrument clusters, or critical ECUs, the LDS3985PU18RY offers a reliable and efficient solution for automotive power management.

LDS3985PU18RY Documents

Download datasheets and manufacturer documentation for LDS3985PU18RY

EOL :

Product Discontinuance Notification 2024-03-19 (PDF)      

PCN :

Product Change Notification (PDF)