Typical Application for TA48S025F 1A Output Current and 2.5V Low Dropout Voltage Regulator with ON/OFF Control Switch. The TA48SxxF series consists of small-surface mount type low-dropout regulators with an output current of 1A (max) and an ON/OFF control switch. Control by an EN (ON/OFF) terminal enables the regulator to be operated only when required (output ON)