Infineon BAT6804E6327: 40 V Low Dropout Voltage Regulator for Automotive Applications

In the demanding world of automotive electronics, where components must endure extreme temperatures, voltage transients, and constant vibration, robust and reliable voltage regulation is paramount. The Infineon BAT6804E6327 is a low-dropout (LDO) voltage regulator engineered specifically to meet these stringent requirements, providing a stable power supply for critical systems within the vehicle.

This LDO regulator is distinguished by its high maximum input voltage of 40 V, a critical feature for the automotive environment. It is designed to withstand load-dump pulses and other voltage spikes common in 12V and 24V vehicle power systems without being damaged. The device offers a fixed output voltage of 5.0 V or 3.3 V with a very low dropout voltage, ensuring stable operation even when the input voltage dips close to the output level, thus maximizing efficiency and battery life.

Beyond its voltage capabilities, the BAT6804E6327 integrates a comprehensive suite of built-in protection features. These include current limiting, thermal shutdown, and reverse polarity protection, safeguarding both the regulator itself and the sensitive downstream circuitry it powers. Its high accuracy and low quiescent current make it an ideal choice for powering microcontrollers (MCUs), sensors, and infotainment systems that require a clean, stable voltage rail.

Furthermore, the component is AEC-Q100 qualified, guaranteeing its performance and reliability for automotive applications. Housed in a space-efficient SOT-223 package, it offers an excellent balance of power handling and board space savings, making it suitable for a wide array of automotive modules, from body control and lighting to advanced driver-assistance systems (ADAS).

ICGOOODFIND: The Infineon BAT6804E6327 stands out as a superior solution for automotive power management, combining high-voltage resilience, low dropout, and robust integrated protection in a compact form factor, ensuring reliability in the most challenging on-board applications.

Keywords: Automotive LDO, 40V Input Voltage, Low Dropout Regulator, AEC-Q100 Qualified, Reverse Polarity Protection.