SY21264ADBC -


·       Wide Input Range: 2-6V

·       1MHz Switching Frequency

·       Minimum ON Time: 100ns typical

·       Minimum OFF Time: 100ns typical

·       Max Output Voltage: 6V

·       Internal 4A Switch

·       Internal Soft-start

·       Over Temperature Protection

·       Over Current Protection

·       Low RDS(0N): 90mΩ typical

·       RoHS Compliant and Halogen Free

·       Compact Package: DFN3×3-10

Typical Application


SY21264A is a high efficiency, current-mode control Boost DC to DC regulator with an integrated 90mΩ  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.


·       1-cell Li-ion Battery Powered Applications

·       Portable Devices