SNVSA56B May 2015 – February 2017 LM2776
Applying a voltage greater than 1.2 V to the EN pin places the device into enable mode. When unloaded, the input current during operation is 120 µA. As the load current increases, so does the quiescent current. When enabled, the output voltage is equal to the inverse of the input voltage minus the voltage drop across the charge pump.