Infineon IFX54441EJV33XUMA1: High-Efficiency 3V Voltage Regulator for Automotive and Industrial Applications

In the demanding worlds of automotive electronics and industrial automation, stable and reliable power delivery is non-negotiable. The Infineon IFX54441EJV33XUMA1 steps into this critical role as a high-performance, 3.3V fixed-output voltage regulator designed to meet the stringent requirements of these applications. This device exemplifies the engineering excellence required to power sensitive microcontrollers, sensors, and communication modules in environments characterized by extreme temperatures, voltage fluctuations, and electrical noise.

Engineered for robustness, the IFX54441EJV33XUMA1 is a low-dropout (LDO) linear regulator that delivers a consistent output voltage even when the input supply voltage is very close to the output level. Its key strength lies in its extremely low dropout voltage, which maximizes efficiency and extends operational range, particularly during critical events like automotive cold-cranking when battery voltage can dip severely. With an input voltage range from 2.7V to 45V and a peak handling capability of up to 60V, it offers exceptional protection against load-dump surges, a common hazard in automotive electrical systems.

Beyond its wide input range, this regulator is packed with integrated protection features that ensure system safety and longevity. These include current limiting to safeguard against short circuits, thermal shutdown to prevent damage from overheating, and reverse polarity protection. Furthermore, its low quiescent current makes it an excellent choice for always-on applications such as telematics control units (TCUs) or battery monitoring systems, where minimizing power consumption during standby is crucial for preserving battery life.

The device's AEC-Q100 qualification underscores its suitability for the harsh automotive environment, guaranteeing performance across a wide temperature range. Its compact, surface-mount PG-TO263-5-43 package ensures efficient power dissipation while saving valuable PCB space. For designers, it offers a simple, reliable solution that reduces external component count and simplifies the design-in process, accelerating time to market for robust electronic systems.

ICGOODFIND: The Infineon IFX54441EJV33XUMA1 is a robust and highly reliable 3.3V LDO voltage regulator, purpose-built for the toughest conditions. Its exceptional combination of a wide input voltage range, high surge tolerance, integrated protections, and low quiescent current makes it an indispensable component for ensuring power integrity in mission-critical automotive and industrial applications.

Keywords: LDO Regulator, Automotive Grade, Wide Input Voltage, Low Quiescent Current, AEC-Q100.