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AssigneesSTMicroelectronics S.r.I., Hynix Semiconductor Inc.
InventorsLuca Crippa, Miriam Sangalli, Giancarlo Ragone, Rino Micheloni
Estimating the term…
A multistage circuit for regulating the charge voltage or the discharge current of a capacitance of an integrated device at a certain charge-pump generated boosted voltage is implemented without integrating high voltage transistor structures having a type of conductivity corresponding to the same sign of the boosted voltage (high-side transistors). The multistage circuit current includes at least a first stage, and an output stage in cascade to the first stage and coupled to the capacitance. The first stage is supplied at an unboosted power supply voltage of the integrated device, and the output stage is supplied at an unregulated charge-pump generated boosted voltage. The first stage includes a transistor having a type of conductivity corresponding to an opposite sign of the boosted voltage and of the power supply voltage. The drain of the output stage transistor is coupled to the boosted voltage either through a resistive pull-up or a voltage limiter.
1-8. (canceled)
A multistage voltage regulator circuit for regulating a charge voltage on a load of an integrated device, the charge voltage being provided by a charge-pump, the circuit comprising:
A multilevel memory device comprising:
A method for making a multistage voltage regulator circuit for regulating a charge voltage on a load of an integrated device, the charge voltage being provided by a charge-pump, the method comprising:
Dependencies are inferred from the claim text.