Setting the SEL terminal to either Open or Low will enable the auto power save function. For example, an output current of 3mA will activate high performance mode. If the output current drops below 0.3mA the mode will switch to low power consumption with a circuit current of 2uA. Conversely, if the output current increases above 1.2mA operation will switch to high performance mode. In addition, if the SEL terminal is at 1.5V or greater the unit will operate in high performance mode.