SY21222ABC -


·       Wide Input Range: 3-33V Bias Input, 33Vout Max

·       1MHz Switching Frequency

·       Minimum On Time: 100ns Typical

·       Minimum Off Time: 100ns Typical

·       Low RDS(ON): 200mΩ

·       Rohs Compliant And Halogen Free

·       Accurate Reference: 0.6VREF

·       Compact Package: SOT23-6

Typical Application


SY21222 is a high efficiency, current-mode controlBoostDCto DC regulator with an integrated 200mΩ  RDS(ON) N-channel MOSFET. The fixed 1MHz switching frequency and internal compensation reduce external component count and save the PCB space. The build-in internal soft start circuitry minimizes the inrush current at start-up.


·       Digital Camera

·       Cell Phone

·       PDA, PMP, MP3