Self-referenced low-dropout regulator
AssigneeNXP B.V.
InventorGe Wang
Life of this patent
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Abstract
A low dropout regulator (LDO) is disclosed. The LDO includes a transistor loop including a first transistor coupled to a second transistor. The first transistor and the second transistor coupled to a first resistor and a second resistor. The first resistor being coupled to ground and second resister coupled to the first resistor. The LDO further includes an output transistor coupled to the second transistor and a power supply line. The output transistor further coupled to a pair of input transistors coupled to the power supply line. One of the input transistors coupled to a third resistor, wherein the third resistor coupled to a fourth resistor and the fourth resistor coupled to ground. The LDO also includes a fifth resistor coupled to an output of the output transistor. The fifth resistor is coupled to the first transistor.
Claims6
A low dropout regulator (LDO), comprising:
- a transistor loop including a first transistor coupled to a second transistor, wherein the first transistor and the second transistor are coupled to a first resistor and a second resistor, the first resistor being coupled to ground and the second resistor is coupled to the first resistor;
- an output transistor is coupled to the second transistor and a power supply line, wherein the output transistor is further coupled to a pair of input transistors that are coupled to the power supply line, wherein one of the input transistor is coupled to a third resistor, wherein the third resistor is coupled to a fourth resistor and the fourth resistor is coupled to ground;
- and
- a fifth resistor is coupled to an output of the output transistor, wherein the fifth resistor is coupled to the first transistor.
Dependencies are inferred from the claim text.