•      Low R_DS(ON) for Internal Switches (Top/Bottom): 350/150 mΩ
•      4.5-27V Input Voltage Range
•      Instant PWM Architecture to Achieve Fast Transient Responses
•      Internal Soft-start Limits the Inrush Current
•      2% 0.6V Reference
•      RoHS Compliant and Halogen Free
•      Compact Package: SOT23-6

The SY21041C develops a high efficiency synchronous step-down DC/DC converter capable of delivering 1A load current. The SY21041C operates over a wide input voltage range from 4.5V to 27V and integrates main switch and synchronous switch with very low R_DS(ON) to minimize the conduction loss.

The SY21041C always operates under continuous condition mode. Low output ripple and small inductor and capacitor size are achieved with 1.15MHz switching frequency.