PD-60344 IR3810MPbF TM SupIRBuck HIGHLY INTEGRATED 12A WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR Features Description Wide Input Voltage Range 2.5V to 21V TM The IR3810 SupIRBuck is an easy-to-use, fully Wide Output Voltage Range 0.6V to 12V integrated and highly efficient DC/DC regulator. Continuous 12A Load Capability The onboard switching controller and MOSFETs 600kHz High Frequency Operation make the IR3810 a space-efficient solution, Programmable Over-Current-Protection providing accurate power delivery for low output Hiccup Current Limit voltage applications. Tracking capability for Memory Application Precision Reference Voltage (0.6V) The IR3810 operates from a single 4.5V to 14V Programmable Soft-Start input supply and generates an output voltage Pre-Bias Start-up adjustable from 0.6V to 0.75*Vin at loads up to Thermal Protection 12A. Thermally Enhanced Package IR3810 can be configured for tracking Small Size 5mmx6mm QFN applications to generate termination voltage (VTT) Pb-Free (RoHS Compliant) for memory applications. Applications A versatile regulator offering programmability of Distributed Point-of-Loads start up time and current limit, the IR3810s fixed Server and Workstations 600kHz switching frequency allows the use of Embedded Systems small external components. Storage Systems IR3810 also features important protection DDR Applications functions, such as Pre-Bias startup, hiccup Graphics Cards current limit and thermal shutdown to provide the Game Consoles required system level security in the event of fault Computing Peripheral Voltage Regulators conditions. Fig. 1. Typical application diagram 11/04/08 1 PD-60344 IR3810MPbF 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,Vp -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 SW V IN PGnd o = 35 C / W JA o = 2 C / W J-PCB 15 Vref 13 9 HG AGnd Vc 14 V 8 CC 1 4 7 23 5 6 Vp FB COMP AGnd AGnd SS OCSet Fig. 2: Package outline (Top view) ORDERING INFORMATION PACKAGE PACKAGE PIN PARTS PER DESIGNATOR COUNTS REEL DESCRIPTION M IR3810MTRPBF 15 4000 M IR3810MTR1PBF 15 750 11/04/08 2