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ERJ-3EKF1652V Datasheet(PDF) 3 Page - International Rectifier |
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ERJ-3EKF1652V Datasheet(HTML) 3 Page - International Rectifier |
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3 / 47 page  Dual output, 4A/Phase, Highly Integrated SupIRBuck TM Single-Input Voltage, Synchronous Buck Regulator IR3891 3 www.irf.com © 2013 International Rectifier May 08, 2013 FUNCTIONAL BLOCK DIAGRAM GATE DRIVE LOGIC Gnd Comp Seq* fb EN VREF E/A Intl_SS FB FAULT CONTROL LOGIC Rff Vin SOFT START SSOK FAULT POR VREF + - PGood Rt/Sync Vsns UVEN UVEN POR POR UVLO VREF UV/ OV/OLFP FB UV/ OV/OLFP HDin LDin OC OVER CURRENT PROTECTION THERMAL SHUTDOWN POR TSD OV/OFLP OC + - VLDO_REF + - LDO VCC LDrv HDrv FAULT CONTROL FAULT PGnd SW PVin Boot Vin VCC/LDO_out UVLO UVLO + + + - VCC *The Seq pin is only available for channel 2 Figure 3: IR3891 Simplified Block Diagram (one phase) |
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