IRUK3055CQ01TR

Data Sheet No.94514 IRUK3055CQ01 POWER MANAGEMENT CHIPSET FOR 3-PHASE VRM 9.0 CONVERTERS FEATURES Complete VRM 9.0 chipset for a 3-phase Buck converter capable of up to 60A Optimized chipset for easy design of high current multiphase DC-DC converters complying with the VRM 9.0 specification HEXFET® MOSFETs for the control and synchronous FET socket DESCRIPTION The IRUK3055CQ01 is a complete power management chipset solution that meets Intel’s VRM 9.0 specifications for CPU power. The chipset consists of the IRU3055CQ 3-phase PWM IC and matching control (IRF3704S) and synchronous MOSFETs (IRF3711S). The IRUK3055CQ01TR chipset simplifies procurement of power MOSFETs and multi-phase, synchronous PWM ICs to reduce design time of high current DC-DC converters for CPU power. When used in a 3-phase DC-DC converter design, the IRUK3055CQ01TR chipset can provide up to 60A for microprocessor VCORE requirements. APPLICATIONS Intel Pentium 4 and AMD K7 CPU Power Low voltage/high current DC to DC converters CHIPSET CONTENTS Each IRUK3055CQTR chipset contains: PART # IRU3055CQ IRF3704S IRF3711S DESCRIPTION 5-Bit Programmable 3-Phase Synchronous PWM IC 20VN Control MOSFET, 9mV (Max) 20VN Synchronous MOSFET, 6.5mV (Max) PACKAGE 36-Pin QSOP D2Pak D2Pak QTY 1 3 3 Note: Click on the part numbers in the table above to link to individual datasheets. You may also use the part search engine on www.irf.com to access the datasheets of the individual parts. ORDER INFORMATION PART # IRUK3055CQ01TR IRUK3055CQ01 DESCRIPTION VRM 9.0 Power Chipset in Tape and Reel VRM 9.0 Power Chipset in Bulk STANDARD PACK 1600 1 Rev. 1.0 06/26/02 www.irf.com 1 IRUK3055CQ01 TYPICAL APPLICATION CIRCUIT 12V D1 C1 1uF C2 0.1uF Q1 IRF3704S R1 OCSet C3 1uF L1 1uH C4 1000uF VCH3 5V C5 1uF VCH12 Vcc V CL1 V CL23 HDrv1 C6 6 x 1500uF L2 2.2K Ref LDrv1 Rt PGnd1/ OCGnd CS1 HDrv2 Q3 IRF3704S Q4 IRF3711S Q2 IRF3711S 1uH R2 1.5K C8 1uF L3 1uH R4 1.5K C11 1.5V / 60A SS C9 1uF R3 47K C10 0.1uF D4 IRU3055 LDrv2 PGnd2 D3 CS2 D2 HDrv3 D1 D0 C12 22nF C7 100pF Fb R6 Comp 27K CS3 LDrv3 PGnd3 Q5 IRF3704S Q6 IRF3711S 1uF L4 1uH R5 1.5K C13 1uF C14 8x 2700uF (Optional) Figure 1 - Application circuit of a 3-phase Buck converter using the IRUK3055CQ01TR chipset. VOUT = 1.5V @ 60A IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC Fax: (310) 252-7903 Visit us at www.irf.com for sales contact information Data and specifications subject to change without notice. 02/01 2 www.irf.com Rev. 1.0 06/26/02