ROHM Semiconductor

BD450S2EFJ-CE2

BD450S2EFJ-CE2 Description

The BD450S2EFJ-CE2 is an automotive-grade linear voltage regulator designed by ROHM Semiconductor for applications requiring a reliable and efficient power management solution. This regulator offers a fixed output voltage of 5.0V and can deliver up to 200mA of output current, making it suitable for a wide range of automotive electronic systems. With a maximum input voltage of 42V and a quiescent current of just 90 µA, the BD450S2EFJ-CE2 ensures high efficiency and minimal power consumption. The regulator features a low dropout voltage of 0.35V at 100mA, which enhances its performance in low-input voltage scenarios. Additionally, it provides robust protection features, including over-current, over-temperature, and short-circuit protection, ensuring safe operation under various conditions.

BD450S2EFJ-CE2 Features

• High Efficiency and Low Power Consumption: The BD450S2EFJ-CE2 boasts a quiescent current of only 90 µA, which is crucial for maintaining high efficiency in automotive applications where power conservation is essential.
• Low Dropout Voltage: With a maximum dropout voltage of 0.35V at 100mA, this regulator can maintain its output voltage even when the input voltage is close to the output voltage, making it ideal for systems with varying input voltage levels.
• Robust Protection Features: The regulator includes over-current, over-temperature, and short-circuit protection, ensuring reliable operation and safeguarding against potential damage.
• Automotive Grade: Certified for automotive use, the BD450S2EFJ-CE2 meets the stringent requirements of the automotive industry, ensuring durability and reliability in harsh environments.
• Surface Mount Packaging: The surface mount package type allows for easy integration into compact and space-constrained automotive electronic systems.
• High PSRR: A power supply rejection ratio (PSRR) of 65dB at 120Hz ensures that the regulator can effectively filter out noise from the power supply, resulting in a stable and clean output voltage.
• Moisture Sensitivity Level (MSL) 1: The BD450S2EFJ-CE2 has an MSL rating of 1, indicating it is not moisture-sensitive and can be stored and handled without special precautions.

BD450S2EFJ-CE2 Applications

The BD450S2EFJ-CE2 is particularly well-suited for automotive applications where reliability, efficiency, and compact design are paramount. Specific use cases include:

• Automotive Electronics: Ideal for powering electronic control units (ECUs), infotainment systems, and other automotive electronics that require a stable 5V supply.
• On-Board Diagnostics (OBD): Provides a reliable power source for OBD systems, ensuring accurate and consistent performance.
• Telematics and Communication Systems: Suitable for powering GPS, telematics, and other communication modules in vehicles.
• Safety Systems: Can be used in various safety systems, such as airbag control units and anti-lock braking systems (ABS), where high reliability and low dropout voltage are critical.

Conclusion of BD450S2EFJ-CE2

The BD450S2EFJ-CE2 from ROHM Semiconductor is a high-performance, automotive-grade linear voltage regulator that offers a combination of efficiency, reliability, and robust protection features. Its low quiescent current, low dropout voltage, and high PSRR make it an ideal choice for automotive applications where power conservation and stable performance are essential. With its surface mount packaging and automotive-grade certification, the BD450S2EFJ-CE2 is designed to meet the demanding requirements of modern automotive electronics. Whether powering ECUs, infotainment systems, or safety-critical components, the BD450S2EFJ-CE2 ensures reliable and efficient operation, making it a standout choice in the power management market.