IRDC3810 Infineon

IRDC3810 Rev 0.0 1 03/14/2008IRDC3810 TM SupIRBuck USER GUIDE FOR IR3810 EVALUATION BOARD DESCRIPTION An output over-current protection function is The IR3810 is a synchronous buck implemented by sensing the voltage developed converter, providing a compact, high across the on-resistance of the synchronous performance and flexible solution in a small rectifier MOSFET for optimum cost and 5mmx6mm Power QFN package. performance. Key features offered by the IR3810 include, This user guide contains the schematic and bill tracking capability for memory application, of materials for the IR3810 evaluation board. programmable soft-start ramp, precision The guide describes operation and use of the 0.6V reference voltage, thermal protection, evaluation board itself. Detailed application fixed 600kHz switching frequency requiring information for IR3810 is available in the no external component, input under-voltage IR3810 data sheet. lockout for proper start-up, and pre-bias start-up. BOARD FEATURES V = +12V (13.2V Max) in Tracking Input V = 0.75V @ 0- 12A V :0.6V out p L= 0.36uH C = 3x10uF (ceramic 1206) + 330uF (electrolytic) in C = 6x22uF (ceramic 0805) out Rev 0.0 2 03/14/2008