Electronic device

A device comprising:

• a voltage regulator comprising:
• first and second branches, each first and second branch comprising, in order, first, second, and third transistors coupled in series, between a first node of application of a power supply voltage and a second node of application of a reference voltage, control nodes of the first transistors of the first and second branches being coupled together, a control node of the third transistor of each first and second branch being coupled to a junction point of the first and second transistors of the respective branch;
• a fourth transistor coupled between a junction point of the second and third transistors of the second branch and a third node, control nodes of the fourth transistor and of the second transistor of the first branch being coupled together to a node of application of a set point voltage;
• and
• a fifth transistor coupled between a junction point of the second and third transistors of the first branch and a fourth node, control nodes of the fifth transistor and of the second transistor of the second branch being coupled together to an output node of the regulator;
• a microcontroller having a first power supply input coupled to the output node of the regulator;
• and
• a memory having a second power supply input coupled to the output node of the regulator.