Infineon IFX91041EJV33: High-Performance 3V Voltage Regulator for Automotive and Industrial Applications

In the demanding worlds of automotive and industrial electronics, power management is paramount. The Infineon IFX91041EJV33 stands out as a high-performance, low-dropout (LDO) voltage regulator engineered specifically to meet the rigorous requirements of these applications. This component delivers a stable and precise 3.3V output voltage from an input range of 3.5V to 45V, making it an exceptionally versatile and robust solution for a wide array of systems.

A key strength of the IFX91041EJV33 is its exceptional input voltage range and resilience. Capable of handling transient voltages up to 45V and surviving load dump pulses as high as 45V, it is built to withstand the harsh electrical environments commonly found in automotive systems. This inherent robustness is further enhanced by its AEC-Q100 qualification, ensuring reliability for safety-critical automotive applications like engine control units (ECUs), advanced driver-assistance systems (ADAS), and infotainment systems.

Beyond its ruggedness, the regulator excels in performance. It features a very low dropout voltage, maximizing efficiency even when the input voltage is only marginally higher than the output. Furthermore, it boasts ultra-low quiescent current, which is crucial for applications that must minimize power consumption, especially in always-on systems or during battery-powered operation. The device integrates essential protection features such as over-current protection (OCP), thermal shutdown (TSD), and reverse polarity protection, safeguarding both itself and the downstream circuitry.

For industrial applications, the IFX91041EJV33 provides the stability needed for sensitive microcontrollers, sensors, and communication modules. Its high power supply rejection ratio (PSRR) effectively filters out noise from the input, ensuring a clean and stable output voltage. Available in a PG-DSO-8 package, it offers a compact footprint suitable for space-constrained PCB designs.

ICGOODFIND: The Infineon IFX91041EJV33 is a superior LDO voltage regulator that combines a wide operating range, automotive-grade robustness, and high-efficiency performance. It is an ideal, reliable power management solution for designers tackling the complex challenges of modern automotive and industrial systems.

Keywords: LDO Voltage Regulator, Automotive Grade (AEC-Q100), Wide Input Voltage Range, Low Quiescent Current, High PSRR.