IRU3034CS International Rectifier, IRU3034CS Datasheet
IRU3034CS
Specifications of IRU3034CS
IRU3034-CS
IRU3034-CS
Available stocks
Related parts for IRU3034CS
IRU3034CS Summary of contents
Page 1
... PACKAGE ORDER INFORMATION T (°C) Basic Device Leadfree Device IRU3034CS IRU3034CS(PbF) 8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING DESCRIPTION The IRU3034 IC provides a low cost switching controller with true short circuit protection all in a compact 8-pin surface mount package, providing a low cost switching solution for dual supply processor applications that re- quire switching regulator for the 3 ...
Page 2
IRU3034 & (PbF) ABSOLUTE MAXIMUM RATINGS V Supply Voltages .................................................. 20V 12 Fb Pin Voltages ......................................................... -0. Storage Temperature Range ....................................... -65 To 150°C Operating Junction Temperature ................................. 0 To 150°C PACKAGE INFORMATION 8-PIN PLASTIC SOIC (S) TOP ...
Page 3
PIN DESCRIPTIONS PIN # PIN SYMBOL PIN DESCRIPTION 1 Drv The PWM output of the switching controller. This pin is a totem pole drive that is con- nected to the gate of the power MOSFET. A resistor may be placed ...
Page 4
IRU3034 & (PbF) TYPICAL APPLICATION Pentium Core Supply Application (IRU3034 and IRU3033 Dual Layout) Low Cost 4-Bit VID R9 12V SS Drv C3 Note: R9 can be eliminated if dual R1 layout with IRU3033 is ...
Page 5
... Note: For the applications where it is desirable to eliminate the heat sink, the IRL3103S for Q2 and MBR1545CT for D2 in TO-263 packages with minimum of 1" square copper pad can be used. Qty Part # 1 IRU3034CS (8-Pin SOIC) 1 IRL3303 (TO-220) IRL3103S (TO-263) (Note 1) 1 MBR1045CT (TO-220) ...
Page 6
... V Drv2 FB2 U1 Gnd HYST Qty Part # 1 IRU3034CS (8-Pin SOIC) 1 IRL3303 (TO-220) IRL3103S (TO-263) (Note 1) 1 MBR1045CT (TO-220) MBRB1545CT (TO-263) (Note1) 1 Core: T50-18, L=4µH Turns: 10T, 18 AWG 1 L=2µH 1 22Ω, 5%, SMT 1206 size 1 Open for IRU3034, 10Ω for IRU3033 1 10Ω, 5%, SMT 1206 size 1 249KΩ ...
Page 7
... Capacitor C8 Capacitor CS- CS+ U1 Gnd HYST Qty Part # 1 IRU3034CS (8-Pin SOIC) 1 IRL3303 (TO-263) 1 PBYR735 (Axial Thru Hole pkg) PBYR1035B (SMT, T-263 pkg) 1 Core: T50-18, L=4µH Turns: 7T, 18 AWG 1 L=µH 2 10Ω, 5%, SMT 1 182KΩ, 1%, SMT 1 1KΩ, 1%, SMT 1 576Ω, 1%, SMT 1 3.83KΩ ...
Page 8
IRU3034 & (PbF) APPLICATION INFORMATION Introduction The IRU3034 device is an application specific product designed to provide an on-board switching supply for the new generation of microprocessors requiring separate Core and I/O supplies where the load current demand from the ...
Page 9
The peak power dissipated in the CS resistor is: Ppk = I × ×0.005 = However, the average power dissipated is much lower than 2W due to the long off time caused by the ...
Page 10
IRU3034 & (PbF) TYPICAL PERFORMANCE CHARACTERISTICS IRU3034 Output Voltage 1.28 Max 1.27 1.26 1.25 1.24 1.23 Min 1.22 -40°C -25°C 0°C +25°C +50°C +75°C Spec Max. Spec Min. Vout 7V Figure 6 - Output Voltage. IRU3034 Supply Current 14.00 12.00 ...
Page 11
SOIC Package 8-Pin Surface Mount, Narrow Body PIN NO. 1 0.38 ± 0.015 SYMBOL NOTE: ALL MEASUREMENTS ARE IN MILLIMETERS. IRU3034 & ...
Page 12
IRU3034 & (PbF) IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 Feed Direction Figure A Visit us at www.irf.com for sales contact information Data and specifications subject to change without ...