Features
● 85Vac~265Vac full voltage input
● The output voltage of 5V, 9V and 12V is set by SEL pin
● SEL floating, Vout=5V
● SEL=160Kohm resistance, Vout=9V
● SEL is shorted to ground, Vout=12V
● Low-cost BUCK solution
● Quick start: <0.05S
● Low no-load power consumption: <50mW@264Vac, 5V output voltage  
● High constant pressure accuracy: ±3%
● Built-in frequency jittering technology to improve EMI performance
● Integrated high-voltage start circuit and high-voltage power switch
● Built-in leading edge blanking (LEB)
● Built-in protection functions such as undervoltage, overvoltage, overcurrent, overtemperature, short circuit, etc. can
● Package form: SOP8, SOT23-5