PD-60357 IR3802AMPbF TM SupIRBuck HIGHLY INTEGRATED 6A WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR Features Description Wide Input Voltage Range 2.5V to 21V TM The IR3802A SupIRBuck is an easy-to-use, Wide Output Voltage Range 0.6V to 12V fully integrated and highly efficient DC/DC Continuous 6A Load Capability regulator. The onboard switching controller and 300kHz High Frequency Operation MOSFETs make the IR3802A a space-efficient Programmable Over-Current Protection solution, providing accurate power delivery for Hiccup Current Limit low output voltage applications. Precision Reference Voltage (0.6V) Programmable Soft-Start The IR3802A operates from a single 4.5V to 14V Pre-Bias Start-up input supply and generates an output voltage Thermal Protection adjustable from 0.6V to 0.8*Vin at loads up to 6A. Thermally Enhanced Package A versatile regulator offering programmability of Small Size 5mmx6mm QFN startup time, power good threshold and current Pb-Free (RoHS Compliant) limit, the IR3802As fixed 300kHz switching frequency allows the use of small external Applications components. Game Consoles The IR3802A also features important protection Set-top Boxes functions, such as Pre-Bias startup, hiccup Graphics Cards current limit and thermal shutdown to provide the LCD TVs required system level security in the event of fault Desktop PCs conditions. Distributed Point-of-Loads Embedded Systems Computing Peripheral Voltage Regulators Fig. 1. Typical application diagram 11/04/08 1 PD-60357 IR3802AMPbF ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND) V Supply Voltage -0.3V to 24V IN Vcc Supply Voltage -0.3V to 16V Vc Supply Voltage -0.3V to 30V SW -0.3V to 30V Fb,COMP,SS -0.3V to 3.5V OCSet 10mA AGnd to PGnd -0.3V to +0.3V Storage Temperature Range -65C To 150C Operating Junction Temperature Range -40 C To 150C ESD Classification JEDEC, JESD22-A114 o Moisture Sensitivity Level JEDEC Level 3 260 C Caution: Stresses beyond those listed under Absolute Maximum Rating 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 is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. PACKAGE INFORMATION 5mm x 6mm POWER QFN 10 11 12 V SW IN PGnd o = 35 C / W JA o = 2 C / W J-PCB 15 HG 9 NC 13 AGnd V V 14 8 C CC 1 23 4 5 6 7 NC FB COMP AGnd AGnd SS OCSet Fig. 2: Package outline (Top view) ORDERING INFORMATION PACKAGE PACKAGE PIN PARTS PER DESIGNATOR COUNTS REEL DESCRIPTION M IR3802AMTRPBF 15 4000 M IR3802AMTR1PBF 15 750 11/04/08 2