Patent ID: 8841892
Filing Date: 2014-09-23
Classification: G05F

Abstract:
1. An integrated circuit for providing tracking between multiple regulated voltages, the integrated circuit comprising: a voltage reference circuit configured to generate a first reference voltage at an output of the voltage reference circuit; a first voltage regulator circuit having an input coupled to the output of the voltage reference circuit, wherein the first voltage regulator circuit is configured to generate, at a first terminal of a first output transistor, a first regulated voltage that is based on the first reference voltage; a voltage multiplier circuit configured to generate, at an output of the voltage multiplier circuit, a second reference voltage from an equivalent of the first reference voltage, which is received into a first input of the voltage multiplier circuit; a second voltage regulator circuit having an input coupled to the output of the voltage multiplier circuit, wherein the second voltage regulator circuit is configured to generate, at a first terminal of a second output transistor, a second regulated voltage that is based on the second reference voltage, wherein at least one terminal of the second output transistor is capacitively coupled to the first terminal of the first output transistor.