The ME2206 is targeted to be used for  driving loads up to 1A from a two-cell alkaline  battery. The LED current can be programmed by the external current sense resistor, Rs,  connected between the feedback pin (FB) and ground. A low 95mV feedback voltage reduces  the power loss in the Rs for better efficiency. During the shutdown mode, the feedback  resistor Rs and the load are completely  disconnected and the current consumption is reduced to less than 1uA.