Voltage regulator
AssigneeSK hynix Inc.
InventorHyun Chul Lee
Life of this patent
Estimating the term…
Abstract
A voltage regulator includes a voltage generation unit, a first resistor section, and a second resistor section. The voltage generation unit compares a reference voltage level with a voltage level of a first node and generates an output voltage. The first resistor section includes a first sub-resistor and a second sub-resistor between the first node and a ground voltage node, and controls a connection between the first sub-resistor and the second sub-resistor to change a resistance value of the resistors. The second resistor section includes a reference resistor, a plurality of unit resistors, and a plurality of step resistors, and controls connections of the unit resistors and the step resistors to change a resistance value of the resistors.
Claims16
A voltage regulator comprising:
- a voltage generation unit configured to compare a reference voltage level with a voltage level of a first node and generate an output voltage;
- a first resistor section comprising a first sub-resistor and a second sub-resistor between the first node and a ground voltage node, wherein the first resistor section is configured to control a connection between the first sub-resistor and the second sub-resistor to change a resistance value of the first resistor section;
- and
- a second resistor section comprising a reference resistor, a plurality of unit resistors, and a plurality of step resistors, wherein the second resistor section is configured to control connections of the unit resistors and the step resistors to change a resistance value of the second resistor section,
- wherein the first resistor section and the second resistor section are serially coupled between an output terminal of the output voltage and the ground voltage.
A voltage regulator comprising:
- a voltage generation unit configured to compare a reference voltage level with a voltage level of a first node and generate an output voltage;
- a first resistor section comprising a first sub-resistor and a second sub-resistor between the first node and a ground voltage node, wherein the first resistor section is configured to control a connection of the first sub-resistor according to a division signal;
- and
- a second resistor section comprising a reference resistor and a plurality of second resistors between an output terminal of the output voltage and the first node, wherein the second resistor section is configured to control connections of the plurality of second resistors and to reduce a resistance value of each second resistor according to the division signal.
A voltage regulator comprising:
- a voltage generation unit configured to compare a reference voltage level with a voltage level of a first node and output an output voltage at an output terminal thereof;
- a first resistor section comprising a first sub-resistor and a second sub-resistor serially coupled between the first node and a ground voltage node, and a first transistor coupled to both ends of the first sub-resistor and receiving a division signal through a gate terminal thereof;
- and
- a second resistor section comprising a reference resistor and one or more unit resistors serially coupled between the output terminal and a second node, a plurality of step resistors serially coupled between the second node and the first node, one or more second transistors coupled to one end of each unit resistor and the second node to receive a unit resistor selection signal through gate terminals thereof, and a plurality of third transistors coupled to one end of each step resistor and the first node to receive a step resistor selection signal through gate terminals thereof.
Dependencies are inferred from the claim text.