TLE73683EXUMA3

TLE73683EXUMA3 is a multifunctional, next generation microcontroller supply. It is designed for automotive powertrain systems using a standard 12V battery. The regulator follows the concept of its predecessor TLE6368/SONIC, where the output of a pre-regulator feeds the inputs of the micro’s linear supplies. In detail, the TLE7368 cascades a Buck converter with linear regulator and voltage followers to achieve lowest power dissipation. This configuration allows to power the application even at high ambient temperatures. The step-down converter delivers a pre-regulated voltage of 5.5V with a minimum peak current capability of 2.5A. Supplied by this step down converter two low drop linear post-regulators offer 5V and 3.3V (2.6V) with high accuracy. Potential application includes microcontroller supply.

• High efficient next generation microcontroller power supply system
• Wide battery input voltage range from 4.5V up to 45V
• Pre-regulator for low all over power loss - integrated current mode buck converter 5.5V/2.5A
• Integrated linear regulator control circuit to supply controller cores
• LDO3 control for an external NPN power stage - 1.3V ±2%
• 2 tracking regulators following the main 5V, 105mA and 50mA
• Linear voltage regulator as stand-by supply for e.g. memory circuits
• Independent battery input, separated from buck regulator input, overtemperature shutdown
• Window watchdog circuit, overcurrent protection on all regulators, power sequencing on supplies
• PG-DSO-36 package, operating temperature range from -40°C to +150°C