PD-97472 IR3871MPBF TM SupIRBuck 8A HIGHLY INTEGRATED WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR Features Description Input Voltage Range: 3V to 26V TM The IR3871 SupIRBuck is an easy-to-use, Output Voltage Range: 0.5V to 12V fully integrated and highly efficient DC/DC Continuous 8A Load Capability voltage regulator. The onboard constant on time Constant On-Time control hysteretic controller and MOSFETs make Excellent Efficiency at very low output current levels Compensation Loop not required IR3871 a space-efficient solution that delivers up Programmable switching frequency, soft start, and to 8A of precisely controlled output voltage in over current protection 60C ambient temperature applications without Power Good Output airflow. Precision Voltage Reference (0.5V, +/-1%) Pre-bias Start Up Programmable switching frequency, soft start, Under/Over Voltage Fault Protection and over current protection allows for a very Ultra small, low profile 5 x 6mm QFN Package flexible solution suitable for many different applications and an ideal choice for battery powered applications. Applications Additional features include pre-bias startup, very Notebook and desktop computers Game consoles precise 0.5V reference, over/under voltage shut Consumer electronics STB, LCD, TV, printers down, power good output, and enable input with General purpose POL DC-DC converters voltage monitoring capability. 1 IR3871MPBF ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND unless otherwise specified) VIN. FF ... -0.3V to 30V VCC, PGood, EN ......... -0.3V to 8.0V Boot ........ -0.3V to 40V PHASE ....... -0.3V to 30V(DC), -5V(100ns) Boot to PHASE ...... -0.3V to 8V ISET .... -0.3V to 30V 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 5mm x 6mm POWER QFN o = 35 C / W JA o = 2 C / W J-PCB ORDERING INFORMATION PKG DESIG PACKAGE PIN COUNT PARTS PER REEL DESCRIPTION M IR3871MTRPbF 17 4000 M IR3871MTR1PbF 17 750 2