Patent ID: 8736356
Filing Date: 2014-05-27
Classification: G05F

Abstract:
1. A multi-regulator circuit, comprising: a regulator configured to regulate an input voltage to generate a constant voltage; and a plurality of voltage division circuits configured to output divided voltages which are obtained by dividing the constant voltage on the basis of a plurality of voltage generation codes, respectively, wherein each of the plurality of voltage division circuits comprises: a plurality of resistors coupled in series between an output terminal of the regulator and a ground node; a plurality of nodes connecting each of the plurality of resistors to the next resistor; at least one high voltage switch enabled by at least one digital bit included in a corresponding voltage generation code and configured to couple at least one of the plurality of nodes and an output node; and at least one transistor turned on by one or more digital bits, included in the corresponding voltage generation code, but not included in the at least one digital bit inputted to the at least one high voltage switch, and coupled between the ground node and at least one of the plurality of nodes not coupled to the high voltage switch.