Low consumption voltage boost device

A voltage boost device comprising:

• a supply line supplying a supply voltage;
• an input terminal receiving an operating condition signal having a first logic level, representing a standby operation state, and a second logic level, representing an active operation state;
• an output terminal supplying an output voltage higher than said supply voltage;
• and
• a first voltage boost stage connected to said input and output terminals,
• a second voltage boost stage connected to said input and output terminals;
• said first voltage boost stage being enabled in presence of said second logic level of said operating condition signal and being disabled in presence of said first logic level of said operating condition signal, and said second voltage boost stage being controlled in a first operating condition in presence of said first logic level of said operating condition signal, and being controlled in a second operating condition in presence of said second logic level of said operating condition signal.