Power control apparatus for non-volatile memory

A power control apparatus for a non-volatile memory, the power control apparatus comprising:

• a reference voltage generator receiving an adjustment signal, wherein when the adjustment signal is activated, the reference voltage generator provides a reference voltage;
• an adjusting circuit generating a mode indicating signal, the adjustment signal and a control signal, wherein the mode indicating signal indicates that the non-volatile memory is in a deep standby mode, a normal operation mode or a standby mode, wherein the adjusting circuit is connected with the reference voltage generator, and the adjusting circuit receives the reference voltage;
• and
• a switching circuit receiving a supply voltage, a ground voltage, the mode indicating signal and the control signal, wherein an output terminal of the switching circuit is connected with a first node, a voltage at the first node is an operation voltage, and a load is connected with the first node,
• wherein the switching circuit comprises a first switching path, a second switching path and a third switching path, wherein the reference voltage is lower than the supply voltage, and the reference voltage is higher than the ground voltage,
• wherein when the non-volatile memory is in the deep standby mode, the first switching path is activated according to the mode indicating signal, so that the ground voltage is connected with the first node and the operation voltage is equal to the ground voltage,
• wherein when the non-volatile memory is in the normal operation mode, the second switching path is activated according to the mode indicating signal, so that the supply voltage is connected with the first node and the operation voltage is equal to the supply voltage,
• wherein the third switching path is an adjustable resistance path, wherein when the non-volatile memory is in the standby mode, the adjustment signal is activated, and the third switching path is activated according to the mode indicating signal, so that the third switching path is connected between the supply voltage and the first node, wherein a resistance value of the adjustable resistance path is adjusted by the adjusting circuit according to the control signal until a magnitude of the operation voltage is equal to a magnitude of the reference voltage.