IR3891
IR3891 is Synchronous Buck Regulator manufactured by International Rectifier.
Dual output, 4A/Phase, Highly Integrated SupIRBuck® Single-Input Voltage, Synchronous Buck Regulator
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 1.5MHz
- Internal Digital Soft-Start
- Enable input with Voltage Monitoring Capability
- Thermally pensated current limit and Hiccup
Mode Over Current Protection
- External synchronization with Smooth Clocking
- Precision Reference Voltage (0.5V +/-1%)
- Seq pin for Sequencing Applications
- Integrated MOSFETs, drivers and...
