Self-referenced low-dropout regulator

摘要

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.