PD-97605 IR3863MPBF TM SupIRBuck 6A HIGHLY INTEGRATED WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR Features Description TM Input Voltage Range: 3V to 21V The IR3863 SupIRBuck is an easy-to-use, fully Output Voltage Range: 0.5V to 12V integrated and highly efficient DC/DC voltage Continuous 6A Load Capability regulator. The onboard constant on-time Constant On-Time Control hysteretic controller and MOSFETs make IR3863 Compensation Loop not Required Excellent Efficiency at Very Low Output Currents a space-efficient solution that delivers up to 6A of Programmable Switching Frequency and Soft precisely controlled output voltage. Start Programmable switching frequency, soft start, Thermally Compensated Over Current and thermally compensated over current Protection Power Good Output protection allows for a very flexible solution Precision Voltage Reference (0.5V, +/-1%) suitable for many different applications and an Enable Input with Voltage Monitoring Capability ideal choice for battery powered applications. Pre-bias Start Up Thermal Shut Down Additional features include pre-bias startup, very Under/Over Voltage Fault Protection precise 0.5V reference, over/under voltage shut Forced Continuous Conduction Mode Option down, power good output, and enable input with Very Small, Low Profile 4mm x 5mm QFN voltage monitoring capability. Package Applications Notebook and Desktop Computers Game Consoles Consumer Electronics STB, LCD, TV, Printers General Purpose POL DC-DC Converters 8/8/2012 Rev3.2 11 IR3863MPBF ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND unless otherwise specified) VIN, FF . -0.3V to 25V VCC, PGOOD, EN ..... -0.3V to 8.0V BOOT -0.3V to 33V PHASE . -0.3V to 25V(DC), -5V(100ns) BOOT to PHASE . -0.3V to 8V ISET .. -0.3V to 25V, 30mA PGND to GND . -0.3V to +0.3V All other pins -0.3V to 3.9V Storage Temperature Range -65C To 150C Junction Temperature Range -40C To 150C ESD Classification .. JEDEC Class 1C Moisture Sensitivity Level .. JEDEC Level 2 260C (Note 2) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not implied. PACKAGE INFORMATION 4mm x 5mm POWER QFN o 32 C /W JA o 2 C /W J -PCB ORDERING INFORMATION PKG DESIG PACKAGE PIN COUNT PARTS PER REEL DESCRIPTION M IR3863MTRPbF 17 4000 M IR3863MTR1PbF 17 750 8/8/2012 Rev3.2 2