A low voltage difference voltage stabilizer circuit with an auxiliary circuit
A low-dropout voltage regulator and circuit technology, applied in the field of circuits, can solve problems such as poor circuit performance of low-dropout voltage regulators
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[0030] It can be seen from the background art that the low dropout voltage regulator circuit in the prior art has poor performance.
[0031] The embodiment of the present invention provides a low-dropout voltage regulator circuit with an auxiliary circuit. In addition to the low-dropout voltage regulator circuit, it also includes an auxiliary circuit composed of a sampling circuit, a mirror circuit and a current source circuit. The low dropout voltage regulator circuit includes a power MOS transistor, and the drain of the power MOS transistor is used as an output terminal of the low dropout voltage regulator circuit to output a regulated voltage; the power MOS transistor is connected to the sampling circuit, The mirror circuit is connected to the current source circuit, so that the current of the power MOS transistor has a set proportional relationship with the current of the current source circuit, and the current source circuit is greater than the preset voltage The current ...
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