Summary : 1.1 Name: PW2303 Buck Converter Board1.2 Application: Voltage Buck Converter Board1.3 VIN Input Voltage: 4.5V-30V1.4 VOUT Output Voltage: 5V (with no load and 5V input, the output is 5V. As the load currentincreases, the input and output voltage difference is around 0.03V-0.15V, which belongs to lowinput-output voltage difference buck converter products)