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BD4271EFJ-CE2

BD4271EFJ-CE2 Description

The BD4271EFJ-CE2 is a high-performance, low-dropout linear regulator (LDO) designed by Rohm Semiconductor. This device offers a fixed output voltage of 5V and is capable of delivering up to 550mA of output current. It is specifically designed for automotive applications, ensuring robust performance and reliability in demanding environments. The BD4271EFJ-CE2 features a maximum input voltage of 45V, making it suitable for a wide range of power supply requirements. With a dropout voltage of only 0.5V at 300mA, this regulator ensures efficient power conversion even at low input-to-output voltage differentials.

BD4271EFJ-CE2 Features

• Output Type: Fixed, providing a stable 5V output.
• Input Voltage Range: Up to 45V, offering flexibility in power supply design.
• Output Current: Capable of delivering up to 550mA, suitable for various electronic systems.
• Low Dropout Voltage: Maximum 0.5V at 300mA, ensuring high efficiency even under low voltage conditions.
• Quiescent Current: Low at 150 µA, minimizing power consumption in standby mode.
• Power Supply Rejection Ratio (PSRR): 60dB at 120Hz, providing excellent noise suppression.
• Control Features: Includes enable, reset, and watchdog functions for enhanced system control.
• Protection Features: Over current, over temperature, and under voltage lockout (UVLO) for reliable operation.
• Mounting Type: Surface mount, ideal for compact and high-density designs.
• Package: Tape & Reel (TR), facilitating automated assembly processes.
• Compliance: ROHS3 compliant and REACH unaffected, ensuring environmental and regulatory standards are met.

BD4271EFJ-CE2 Applications

The BD4271EFJ-CE2 is particularly well-suited for automotive applications where reliability and performance are paramount. Its automotive grade ensures it can withstand the harsh conditions often encountered in vehicles. This regulator is ideal for powering electronic control units (ECUs), infotainment systems, and other automotive electronics that require stable and efficient power supply. Additionally, its low dropout voltage and high PSRR make it suitable for applications where noise sensitivity is a concern, such as in precision instrumentation and communication equipment.

Conclusion of BD4271EFJ-CE2

The BD4271EFJ-CE2 from Rohm Semiconductor stands out as a reliable and efficient solution for power management in automotive and other demanding applications. Its combination of high output current, low dropout voltage, and robust protection features make it a superior choice over similar models. The inclusion of enable, reset, and watchdog functions further enhances its versatility and control capabilities. Whether powering critical automotive systems or precision electronics, the BD4271EFJ-CE2 delivers the performance and reliability needed to ensure optimal operation.