SY21072I regulator equivalent, synchronous step down regulator.
* Low RDS(ON) for Internal Switches (Top/Bottom): 130mΩ/105mΩ
* 4.2-18V Input Voltage Range
* 2A Output Current Capability
* 500kHz Switching Frequency Mi.
and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 500kHz to minimize the size.
The SY21072I is a high efficiency, synchronous stepdown DC/DC converter capable of delivering 2A load current. The SY21072I operates over a wide input voltage range from 4.2V to 18V and integrates main switch and synchronous switch with very low RDS(.
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