ROHM Semiconductor

BD433S5EFJ-CE2

BD433S5EFJ-CE2 Description

The BD433S5EFJ-CE2 is a high-performance, automotive-grade linear voltage regulator designed by ROHM Semiconductor. This regulator is specifically engineered to deliver a stable 3.3V output with a maximum output current of 500mA. It is optimized for automotive applications, ensuring robustness and reliability in demanding environments. The BD433S5EFJ-CE2 features a low quiescent current of 95 µA and a maximum supply current of 175 µA, making it highly efficient and suitable for power-sensitive designs. With a maximum input voltage of 42V, it offers a wide input range, accommodating various automotive power sources. The regulator also boasts a high power supply rejection ratio (PSRR) of 60dB at 120Hz, ensuring minimal noise in the output voltage.

BD433S5EFJ-CE2 Features

• Efficiency and Low Power Consumption: The BD433S5EFJ-CE2 operates with a low quiescent current of 95 µA and a maximum supply current of 175 µA, making it highly efficient and suitable for applications where power consumption is a critical factor.
• High PSRR: The regulator features a high PSRR of 60dB at 120Hz, ensuring minimal noise in the output voltage, which is crucial for sensitive electronic systems.
• Wide Input Voltage Range: With a maximum input voltage of 42V, the BD433S5EFJ-CE2 can handle a wide range of input voltages, making it versatile for various automotive power sources.
• Fixed Output Voltage: The regulator provides a fixed output voltage of 3.3V, ensuring stable power supply to connected devices.
• Low Dropout Voltage: The BD433S5EFJ-CE2 has a low dropout voltage of 0.75V at 300mA, allowing it to maintain regulation even when the input voltage is close to the output voltage.
• Protection Features: The regulator includes over-current, over-temperature, and short-circuit protection, ensuring safe operation and longevity in demanding automotive environments.
• Automotive Grade: Certified for automotive applications, the BD433S5EFJ-CE2 meets stringent reliability and performance standards required for automotive electronics.
• Surface Mount Technology: The BD433S5EFJ-CE2 is available in a surface-mount package, facilitating easy integration into compact and high-density designs.
• Moisture Sensitivity Level: The regulator has a moisture sensitivity level (MSL) of 1, indicating unlimited exposure to moisture, which is ideal for automotive applications where environmental conditions can be harsh.

BD433S5EFJ-CE2 Applications

The BD433S5EFJ-CE2 is ideal for a variety of automotive applications where a stable and efficient power supply is required. Some specific use cases include:

• Automotive Electronics: Providing stable power to electronic control units (ECUs), infotainment systems, and advanced driver-assistance systems (ADAS).
• On-Board Diagnostics (OBD): Ensuring reliable power supply to OBD systems, which are critical for vehicle diagnostics and maintenance.
• Telematics and Communication Systems: Powering telematics devices and communication modules that require a stable 3.3V supply.
• LED Lighting Systems: Supplying power to LED lighting systems, ensuring consistent brightness and performance.
• Battery Management Systems: Providing a stable power source for battery management systems, which are essential for monitoring and maintaining battery health.

Conclusion of BD433S5EFJ-CE2

The BD433S5EFJ-CE2 is a highly efficient and reliable linear voltage regulator designed specifically for automotive applications. Its low quiescent current, high PSRR, and wide input voltage range make it an excellent choice for power-sensitive and noise-sensitive designs. The inclusion of over-current, over-temperature, and short-circuit protection ensures robustness and longevity in demanding automotive environments. With its surface-mount package and automotive-grade certification, the BD433S5EFJ-CE2 is well-suited for integration into compact and high-density designs. Whether powering ECUs, infotainment systems, or LED lighting, the BD433S5EFJ-CE2 offers a stable and efficient power solution, making it a standout choice in the automotive power management segment.