IR3891 regulator equivalent, synchronous buck regulator.
* Single 5V to 21V application
* Wide Input Voltage Range from 1V to 21V with
external Vcc
* Output Voltage Range: 0.5V to 0.86*PVin
* Dual output, 4A/Pha.
* Integrated MOSFETs, drivers and Bootstrap diode
* Thermal Shut Down
* Open Feedback Line Protection
* .
The IR3891 SupIRBuck® is an easy-to-use, fully integrated and highly efficient DC/DC regulator. The onboard PWM controller and MOSFETs make IR3891 a space-efficient solution, providing accurate power delivery for low output voltage.
IR3891 is a versa.
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