TLE7368E

The Infineon Technologies TLE7368E is a high-efficiency, next-generation microcontroller power supply system designed for automotive powertrain applications. It operates with a wide battery input voltage range from 4.5 V up to 45 V and has an operating temperature range of -40°C to +150°C.

This device integrates a current-mode Buck converter with a 5.5 V/2.5 A output, followed by multiple post-regulators. These include LDO1 (5 V, 800 mA), LDO2 (selectable 3.3 V or 2.6 V, 700 mA), and LDO3 for controller cores (1.5 V for TLE7368E). It also includes tracking regulators for off-board supply and a low-current stand-by regulator with selectable outputs of 1.0 V or 2.6 V.

Key features include hardware-controlled on/off logic, undervoltage detection, a window watchdog circuit, overcurrent protection on all regulators, power sequencing for controller supplies, and overtemperature shutdown. The TLE7368E is qualified for automotive applications according to AEC-Q100 and comes in a PG-DSO-36 package.

The device is designed to supply and monitor next-generation 32-bit microcontroller families, offering a cascade of a Buck converter with linear regulators and voltage followers to achieve low power dissipation, even at high ambient temperatures.