Patent ID: 7714641

Claim:
A voltage regulator arrangement comprising: an initial supply potential connection, to which a supply potential is applied; a first voltage regulator, whose input connection is connected to the initial supply potential connection and whose output connection is connected to a first supply potential connection of a circuit arrangement, with the first voltage regulator supplying the circuit arrangement with a supply voltage in a rest state, wherein the first voltage regulator is optimized for a low current consumption, and has a p-channel series regulating transistor with the source connection connected to the initial supply potential connection; a second voltage regulator, whose input connection is connected to the initial supply potential connection, and whose output connection is connected to a second supply potential connection of the circuit arrangement, with the second voltage regulator supplying the circuit arrangement with a supply voltage during its normal operation, wherein the second voltage regulator is optimized for a low sensitivity to spikes of the supply potential, and has an n-channel series regulating transistor; and a high voltage producer, which supplies the second voltage regulator with a potential that is higher than the supply potential.