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US 2012/0274305 A1Published application
Voltage Regulator and Voltage-Regulator-Equipped Oscillation Circuit
AssigneeInterchip Corporation
InventorsMasaaki Kamiya, Ryuji Ariyoshi
Life of this patent
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Abstract
A voltage regulator comprises an N type depletion MOS transistor having a drain connected to the positive electrode side of a power supply, a source connected to a stabilizing capacitor, and a gate receiving a constant reference voltage, and has an output terminal at the source of the N type depletion MOS transistor. In this simple circuit configuration, the voltage regulator can markedly reduce a noise carried on an output voltage.
Claims6
A voltage regulator, comprising:
- a depletion MOS transistor having a gate to which a constant reference voltage is applied, having a source to which a stabilizing capacitor and a load circuit are connected, and having a drain which is connected to a positive electrode side of a power supply if the depletion MOS transistor is of an N type, or which is connected to a negative electrode side of the power supply if the depletion MOS transistor is of a P type.
Dependencies are inferred from the claim text.