Infineon TLE4294GV50 5V Low-Dropout Voltage Regulator: Features and Applications

The Infineon TLE4294GV50 is a monolithic integrated low-dropout voltage regulator designed to deliver a fixed 5V output with a maximum current of 150 mA. Engineered for robustness and precision, it is a cornerstone component for power management in demanding automotive and industrial environments. Its design prioritizes stability, efficiency, and protection, making it an ideal choice for powering microcontrollers, sensors, and other critical logic circuits.

Key Features and Advantages

The TLE4294GV50 distinguishes itself through a suite of advanced features. Its extremely low current consumption in both operational and standby modes is critical for battery-powered applications, helping to extend overall system runtime. A defining characteristic is its very low dropout voltage, typically 180 mV at 100 mA load, which allows it to maintain a stable 5V output even when the input voltage dips very close to the output level, maximizing useful battery life and operational range.

Beyond efficiency, the regulator is built for resilience. It incorporates comprehensive protection mechanisms, including internal current limiting and overtemperature shutdown, which safeguard both the IC and the downstream circuitry from fault conditions. Furthermore, it features reverse polarity protection up to -42V, a vital attribute for automotive applications where jump-starting or incorrect battery connection can occur. The device also boasts excellent electromagnetic compatibility (EMC) performance and is AEC-Q100 qualified, confirming its reliability for automotive use.

Primary Applications

The combination of its feature set dictates its primary application domains. In the automotive electronics sector, it is perfectly suited for powering body control modules, sensor clusters, infotainment systems, and instrument panels. Its ability to handle the harsh electrical environment of a vehicle, including load-dump and transients, makes it indispensable.

Its utility extends to industrial automation systems, where it provides clean, stable voltage to PLCs, I/O modules, and various sensors. Furthermore, it is an excellent fit for consumer electronics and portable battery-operated devices where power efficiency and small footprint are paramount. The device is available in a PG-TO252-3 (DPAK) package, offering good thermal performance for its power class.

ICGOOODFIND

The Infineon TLE4294GV50 stands out as a highly reliable and efficient 5V voltage regulator. Its exceptional low-dropout performance, ultra-low quiescent current, and robust built-in protection features make it a superior and versatile solution for designers tackling challenging power supply requirements in automotive, industrial, and portable applications.

Keywords: Low-Dropout Regulator, Automotive Grade, Reverse Polarity Protection, Low Quiescent Current, AEC-Q100