Highway 09 Ic Datasheet -

Used as a low-dropout voltage regulator (5V output) or for signal processing in engine management and instrument clusters.

Enable and Control pins to manage operational modes and power sequencing. Primary Applications highway 09 ic datasheet

Power supply input (typically 5V for logic, higher for motor/power). Ground reference for the circuit. IN1 - IN4 Used as a low-dropout voltage regulator (5V output)