Infineon TLE8366EV50XUMA1: A 50V Low-Drop Voltage Regulator Engineered for Automotive Resilience

In the demanding environment of automotive electronics, stability and reliability are non-negotiable. The Infineon TLE8366EV50XUMA1 stands out as a monolithic integrated low-drop voltage regulator specifically designed to meet these rigorous challenges. This IC delivers a fixed 5.0V output with a remarkable maximum input voltage of 50V, making it an exceptionally robust solution for powering ECUs, sensors, and infotainment systems in vehicles.

A key feature of this regulator is its extremely low current consumption in standby mode, which is crucial for modern vehicles with their always-on systems and strict energy efficiency requirements. Its very low dropout voltage ensures stable operation even when the input voltage dips close to the output level, which is vital during cranking scenarios when the car battery voltage can drop significantly. The device incorporates comprehensive protection mechanisms, including overload, short-circuit, and over-temperature protection, safeguarding both the regulator itself and the downstream circuitry. Furthermore, its ability to handle load dump pulses up to 50V directly, without external protection components, simplifies design and enhances system robustness against voltage transients common in the automotive electrical system.

The TLE8366EV50XUMA1 also features an enable pin for remote control, allowing for power management strategies that reduce quiescent current. Its wide operating temperature range of -40°C to 150°C (Tj) ensures flawless performance under the hood in all climate conditions. With its high accuracy and excellent load/line regulation, this regulator provides the clean, stable power source that sensitive automotive microcontrollers require.

ICGOOODFIND: The Infineon TLE8366EV50XUMA1 is a premier choice for automotive designers, offering a resilient and highly integrated power management solution. Its combination of a high input voltage tolerance, integrated protections, and low quiescent current makes it ideal for building reliable and efficient systems that must endure the harsh realities of the automotive environment.

Keywords: Automotive Voltage Regulator, Low-Dropout (LDO), 50V Input, Low Quiescent Current, Load Dump Protection