Automatic test method and device for domestic low-dropout voltage regulator

The invention relates to an automatic test method for a domestic low-dropout voltage regulator, which is used for providing required power input and output loads and external control signals for the low-dropout voltage regulator, so that the low-dropout voltage regulator is in a normal working state. According to the method, the size of power input and output loads is adjusted, and different external control signals are switched, so that the switching of test items is realized, and the function and performance test of the low-dropout voltage regulator is completed under different test items, the test items comprise an input voltage test, an output voltage test, an input and output voltage difference test, a voltage linear regulation rate test, a load regulation rate test and a ripple rejection ratio test; therefore, the function, the performance and the applicability of the low-dropout voltage regulator and the application circuit board card composed of the low-dropout voltage regulator can be automatically t