VOLTAGE REGULATION CIRCUIT, POWER SUPPLY MODULE, VEHICLE AND CONTROL METHOD

The application provides a voltage regulation circuit, a power supply module, a vehicle and a control method. The voltage regulation circuit comprises a first NMOS tube, a second NMOS tube, a third NMOS tube, a control chip and an inductor. A drain electrode of the first NMOS tube is electrically connected to a drain electrode of the second NMOS tube. A source electrode of the second NMOS tube is electrically connected to a first end of the inductor. A first end of the inductor is further electrically connected to a drain electrode of the third NMOS tube. A source electrode of the third NMOS tube is grounded. An output end of the control chip is electrically connected to a grid electrode of the first NMOS tube, a grid electrode of the second NMOS tube and a grid electrode of the third NMOS tube. A source electrode of the first NMOS tube and a second end of the inductor are electrically connected, of which one forms the input end of the voltage regulation circuit, and the other one forms the output end of the