5V to 2.5V voltage stabilizing circuit
Source: InternetPublisher:无人共我 Keywords: Voltage stabilizing circuit power supply PWM switch Updated: 2021/07/22
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.
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