SY21031 regulator equivalent, 0.8a asynchronous step-down regulator.
* 4.5V to 55V Input Voltage Range
* Up to 0.8A Output Current
* Low RDS(ON) for Internal N-Channel Power
FET: 700mΩ
* 1.2MHz Pseudoconstant Switching
Freq.
* Non-Isolated Telecommunication Buck Regulator
* Secondary High-Voltage Post Regulator
* Automotive Systems.
The SY21031 high-efficiency asynchronous stepdown DC/DC regulator is using an adaptive constant off-time architecture, and can deliver 0.8A current over a wide input voltage range from 4.5V to 55V. It integrates a main switch with low RDS(ON) to mini.
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