Overview
   SM7028 is a power switch chip using current mode PWM control, integrating high-voltage startup circuit and high-voltage power tube, providing a cost-effective solution for low-cost switching power supply system.

FEATUREs
✦ 85Vac~265Vac wide voltage input
✦ Standby power consumption is less than 120mW@220Vac
✦ Integrated high-voltage startup circuit
✦ Integrated high-voltage power switch
✦ 60KHz fixed switching frequency
✦ 9V~30V wide VDD operating voltage range
✦ Current mode PWM control method
✦ Built-in over-temperature, over-current, over-voltage, under-voltage and other protection functions
✦ Package: EDIP8

APPLICATIONs
✦ Low-power charger
✦ Low-power adapter
✦ Standby power supply
✦ DVD, DVB and other portable device power supplies