Fixed 8.5 V rail for automotive subsystems
The Infineon TLE4274GV85-2 is a single-output positive fixed LDO regulator delivering 8.5 V at up to 400 mA. It is qualified to AEC-Q100, making it a fit for automotive power rails — sensor supplies, CAN transceiver bias, or ECU local regulation. The PG-TO263-3-1 package (D²Pak, 3 leads plus tab) is a surface-mount power package sized for the 400 mA load with the tab soldered to the board copper for heat removal.
Quiescent current and protection suite
Quiescent current is 220 µA typical, which matters for always-on modules where the regulator itself is a standing load. The part includes antisaturation, over-temperature shutdown, reverse polarity protection, and short-circuit protection — built-in ruggedness that saves external clamp diodes and supervisory ICs in an automotive BOM.
