New Power supply static current are small, generally tens of a to hundreds of A. The static current of individual low power linear regulators is only 1.1 a.
In addition, many power IC has the function of turning off the power control terminal (using the battery to control) . When the power is turned off, the IC itself consumes about 1A. As it can make a part of the circuit does not work, can greatly save energy. For example, on a wireless communication device, the receiving circuit can be turned off when the signal is sent, the display circuit can be turned off when the signal is not received, etc. .
