TLE4267GM: Infineon's 5-V Low-Drop Voltage Regulator for Automotive and Industrial Applications

In the demanding worlds of automotive electronics and industrial control systems, stable and reliable power supply is non-negotiable. Infineon's TLE4267GM stands out as a quintessential solution, a robust 5-V low-dropout (LDO) voltage regulator engineered to meet the stringent requirements of these applications. This IC exemplifies the marriage of high performance, exceptional protection, and resilience in harsh operating environments.

The core function of the TLE4267GM is to provide a precise, fixed 5-V output from an input voltage range spanning from 5.5 V to 42 V. Its key characteristic is the low dropout voltage, typically 400 mV at a full load current of 150 mA. This efficiency is critical in automotive scenarios, such as during cold-crank conditions, where the battery voltage can dip significantly low; the regulator continues to function without interruption, ensuring stability for microcontrollers, sensors, and other critical logic circuits.

Beyond its primary regulation task, the TLE4267GM is packed with integrated protection features that make it exceptionally robust. It includes overtemperature protection and short-circuit security, safeguarding both the regulator itself and the downstream components from damage under fault conditions. Furthermore, it boasts reverse polarity protection, a vital attribute for automotive applications where incorrect battery connection is a real-world risk. The device also incorporates a reset function with a programmable delay time. This reset output monitors the regulated supply voltage and provides a defined signal to the connected microprocessor during power-on, power-off, or dropout events, ensuring controlled and safe system operation.

Designed for automotive-grade reliability, the TLE4267GM operates seamlessly over an extensive junction temperature range from -40 °C to 150 °C. Its high immunity to electrical transients, aligned with automotive standards like LV 124, makes it a trusted component under the hood. Similarly, in industrial settings, it powers PLCs, actuators, and measurement equipment, immune to the electrical noise and voltage fluctuations common in factories.

ICGOODFIND: The Infineon TLE4267GM is a superior LDO voltage regulator that sets a high standard for power management. Its combination of a wide input voltage range, low dropout, comprehensive built-in protection mechanisms, and automotive-qualified ruggedness makes it an ideal, all-in-one power solution for developers building resilient systems for the automotive and industrial markets.

Keywords:

Low-Dropout (LDO) Regulator

Automotive-Grade

Wide Input Voltage Range

Reverse Polarity Protection

Reset Function