• Operates in a Wide VCC Voltage Range from 11V-30V 

• Ultra-Low Quiescent Current:<160uA 

• Ultra-Low Startup Current:<20uA 

• Total Harmonic Compensator for AC Zero-Crossing 

• Ultra-low THD & Unity Power Factor 

• Smart High/Low Line Overcurrent Protection and Soft Start Function (MK2552, MK2552Q) 

• Maximum Operating Frequency Limit and Valley Switching (MK2552Q) 

• On-Chip Current Sense Filter 

• Brown-In and Brown-Out Protection (MK2552, MK2552Q) 

• Noise Immunity Enhancement 

• Feedback Open Loop Protection (MK2552A, MK2552Q) 

• Package: SOP-8