SLVSBB4G August 2012 – June 2018 TPS54360
The device is recommended to operate with input voltages above 4.5 V. The typical VIN UVLO threshold is 4.3 V and the device may operate at input voltages down to the UVLO voltage. At input voltages below the actual UVLO voltage, the device will not switch. If EN is externally pulled up to VIN or left floating, when VIN passes the UVLO threshold the device will become active. Switching is enabled, and the soft start sequence is initiated. The TPS54360 will start at the soft start time determined by the internal soft start time.