Infineon TLE42794G: A 5-V Low-Drop Voltage Regulator for Automotive and Industrial Applications

In the demanding environments of modern automotive electronics and industrial control systems, stable and reliable power supply is non-negotiable. The Infineon TLE42794G addresses this critical need as a monolithic integrated fixed 5-V low-drop voltage regulator, engineered to deliver exceptional performance under the most challenging conditions.

This regulator is designed to supply output currents up to 450 mA, making it suitable for powering microcontrollers, sensors, and various logic circuits. A key feature is its remarkably low dropout voltage, typically 200 mV at 150 mA load, which maximizes efficiency and minimizes power loss, especially during cold cranking in vehicles or during input voltage dips. The device incorporates essential protection mechanisms, including overcurrent limitation, overtemperature shutdown, and reverse polarity protection. These features are crucial for safeguarding both the regulator itself and the sensitive load it powers, ensuring system resilience and longevity.

Furthermore, the TLE42794G boasts an impressive input voltage range of up to 42 V, allowing it to handle load dump transients common in 12-V and 24-V automotive battery systems with ease. Its very low quiescent current in both operational and off-state modes makes it an excellent choice for applications requiring low power consumption. The device also features an error signal output (ERROR pin) that can warn of an output voltage that is too low, providing a diagnostic function for safety-critical systems.

ICGOODFIND: The Infineon TLE42794G stands out as a robust and highly reliable power management solution. Its combination of high current capability, extremely low dropout voltage, and comprehensive suite of protection features makes it an indispensable component for ensuring electronic stability in the harsh electrical environments of automotive and industrial applications.

Keywords: Low-Dropout Regulator, Automotive Grade, Overcurrent Protection, Reverse Polarity Protection, 450 mA Output Current