IR3891 Datasheet (International Rectifier) - Synchronous Buck Regulator

IR3891, Synchronous Buck Regulator

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 versatile regulator which offers programmability of swi

IR3891 Features

* 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/Phase

* Enhanced Line/Load Regulation with Feed- Forward

* Programmable Switching Frequency up to