STMicroelectronics

L4931ABD35-TRY

L4931ABD35-TRY Description

The L4931ABD35-TRY is a linear regulator IC designed by STMicroelectronics, a leading manufacturer in the electronics industry. This particular model is part of the Power Management (PMIC) category and is specifically tailored for automotive applications. The L4931ABD35-TRY offers a fixed output voltage of 3.5V with a maximum output current of 250mA. It is designed to operate with an input voltage range up to 20V, ensuring robust performance in various operating conditions.

L4931ABD35-TRY Features

• Output Type: Fixed, providing a stable 3.5V output voltage.
• Input Voltage Range: Capable of handling up to 20V, making it suitable for a wide range of power supply sources.
• Output Current: Delivers a consistent 250mA, ideal for applications requiring moderate power.
• Single Regulator: Simplifies design and reduces component count with a single regulator.
• Positive Output Configuration: Ensures compatibility with standard positive voltage systems.
• Low Dropout Voltage: With a maximum dropout voltage of 0.82V at 250mA, it maintains efficiency even at low input-to-output voltage differences.
• Low Quiescent Current: Only 1mA, contributing to energy efficiency and prolonged battery life in portable applications.
• Protection Features: Includes over-current and over-temperature protection, enhancing reliability and safety.
• Mounting Type: Surface mount, suitable for compact and modern PCB designs.
• Package: Tape & Reel (TR), facilitating automated assembly processes.
• Compliance: ROHS3 compliant and REACH unaffected, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for storage and handling in various environments.

L4931ABD35-TRY Applications

The L4931ABD35-TRY is ideal for automotive applications where reliability and efficiency are paramount. Its fixed 3.5V output and 250mA current capability make it suitable for powering microcontrollers, sensors, and other low-power electronics within vehicles. The low dropout voltage ensures efficient operation even when the input voltage is close to the output voltage, which is common in automotive electrical systems.

Specific use cases include:

• Automotive Electronics: Powering infotainment systems, engine control units, and other critical automotive electronics.
• Industrial Control Systems: Providing stable power to sensors and actuators in industrial environments.
• Portable Devices: Suitable for battery-powered devices where low quiescent current and efficient power management are essential.

Conclusion of L4931ABD35-TRY

The L4931ABD35-TRY from STMicroelectronics is a versatile and reliable linear regulator designed for automotive applications. Its fixed 3.5V output and 250mA current capability, combined with low dropout voltage and comprehensive protection features, make it an excellent choice for powering various electronic systems. The surface mount package and tape & reel format ensure ease of integration into modern PCB designs. Despite being marked as obsolete, the L4931ABD35-TRY remains a robust solution for applications requiring stable and efficient power management.