Voltage regulators can be divided into linear integrated voltage regulators and switching integrated voltage regulators
Linear integrated voltage regulators can be divided into low dropout voltage regulators and general dropout voltage regulators.

Switching integrated voltage regulators can be divided into buck regulators, boost regulators, input regulators, output regulators and reverse-stage regulators.

The detection method of the voltage stabilizer is mainly to detect its output terminal voltage. If the output terminal voltage is normal, the voltage regulator is normal. If there is no voltage at the output terminal, the input terminal voltage is detected. If the input terminal voltage is normal, the voltage stabilizer is damaged.