ROHM Semiconductor

BD450S2WEFJ-CE2

BD450S2WEFJ-CE2 Description

The BD450S2WEFJ-CE2 is an automotive-grade linear voltage regulator designed to deliver high performance and reliability in demanding environments. Manufactured by ROHM Semiconductor, this regulator is specifically tailored for applications requiring a fixed 5.0V output voltage with a maximum output current of 200mA. Its quiescent current of 90 µA and a maximum supply current of 150 µA ensure efficient power consumption, making it suitable for energy-sensitive automotive systems.

BD450S2WEFJ-CE2 Features

• High PSRR: The regulator boasts a Power Supply Rejection Ratio (PSRR) of 65dB at 120Hz, effectively filtering out noise and ripple from the input voltage, ensuring a clean and stable output.
• Low Dropout Voltage: With a maximum dropout voltage of 0.35V at 100mA, the BD450S2WEFJ-CE2 can maintain regulation even when the input voltage is close to the output voltage, enhancing efficiency in low-headroom applications.
• Protection Features: Over-current, over-temperature, and short-circuit protections are integrated to safeguard the regulator and connected circuits from damage, enhancing system reliability.
• Enable Control: The enable feature allows for dynamic control of the regulator's operation, providing flexibility in power management and system design.
• Automotive Grade: Certified for automotive use, this regulator meets stringent industry standards, ensuring robust performance in harsh environments.
• Surface Mount Packaging: The BD450S2WEFJ-CE2 is available in a surface mount package, facilitating compact and efficient PCB layouts.
• Moisture Sensitivity Level (MSL): The MSL rating of 1 (unlimited) indicates that the component is highly resistant to moisture, making it suitable for a wide range of manufacturing processes.

BD450S2WEFJ-CE2 Applications

The BD450S2WEFJ-CE2 is ideal for a variety of automotive applications where a stable and reliable power supply is critical. Its fixed 5.0V output and 200mA output current make it suitable for powering microcontrollers, sensors, and other low-power electronics in vehicles. Key applications include:

• Automotive Electronics: Powering ECUs, infotainment systems, and other automotive electronic modules.
• Sensor Systems: Providing stable power to various sensors used in engine management, safety systems, and driver assistance technologies.
• Microcontroller Power Supply: Ensuring reliable power delivery to microcontrollers in automotive control units.
• Low-Power Communication Modules: Supplying power to CAN, LIN, and other communication interfaces in vehicles.

Conclusion of BD450S2WEFJ-CE2

The BD450S2WEFJ-CE2 from ROHM Semiconductor stands out as a reliable and efficient automotive-grade voltage regulator. Its combination of low quiescent current, high PSRR, and low dropout voltage ensures optimal performance in energy-sensitive and low-headroom applications. The integrated protection features and enable control provide additional layers of safety and flexibility, making it a robust choice for automotive electronics. With its surface mount packaging and high moisture resistance, the BD450S2WEFJ-CE2 is well-suited for modern automotive manufacturing processes. For designers seeking a dependable and efficient power solution for automotive applications, the BD450S2WEFJ-CE2 is an excellent choice.