5V to 2.5V voltage stabilizing circuit

5V to 2.5V voltage stabilizing circuit

Shown is a 5v to 2.5V voltage regulator circuit on a computer motherboard . It can be seen from the circuit that this circuit is a power supply
circuit with the power management chip RT9202 as the core . RT9202 is a switching pulse generation circuit. After the 5v power supply is supplied , the circuit starts to oscillate. Pins ② and ④ respectively output PWM signals with opposite phases , so that The two-field effect transistors MU and ML work alternately to convert 5V DC into a pulse signal, which is filtered by LC and turned into a 2.5 V DC voltage to power some circuits on the motherboard.