iru3011 International Rectifier Corp., iru3011 Datasheet
iru3011
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iru3011 Summary of contents
Page 1
... Dual Layout compatible with HIP6004A Designed to meet Intel specification of VRM8.4 for Pentium III On-Board DAC programs the output voltage from 1.3V to 3.5V. The IRU3011 remains on for VID code of (11111). Loss-less Short Circuit Protection Synchronous operation allows maximum efficiency Patented architecture allows fixed frequency ...
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... IRU3011 ABSOLUTE MAXIMUM RATINGS V5 Supply Voltage .................................................... 7V V12 Supply Voltage .................................................. 20V Storage Temperature Range ...................................... -65°C To 150°C Operating Junction Temperature Range ...................... PACKAGE INFORMATION 20-PIN WIDE BODY PLASTIC SOIC (W) TOP VIEW CS OVP V12 LDrv Gnd ...
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... Table 1 - Set point voltage vs. VID codes. www.irf.com IRU3011 MIN TYP MAX UNITS 9.2 10 10.8 V 0.3 0.4 0.5 V 4.1 4.3 4.5 V 0.2 0.3 0 100 ns 160 200 240 100 ...
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... IRU3011 PIN DESCRIPTIONS PIN# PIN SYMBOL PIN DESCRIPTION connection. 2 CS+ This pin is connected to the Drain of the power MOSFET of the Core supply and it provides the positive sensing for the internal current sensing circuitry. An external resis- tor programs the CS threshold depending on the R capacitor is placed in parallel with the programming resistor to provide high frequency noise filtering ...
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... V5 9 Vset D0 4 Enable D1 5Bit 5 DAC Ctrl Logic 1.18Vset OVP 19 Gnd 16 Figure 2 - Simplified block diagram of the IRU3011. Rev. 1.6 08/20/02 Vset Enable PWM + Control Slope Comp Osc Soft Over Current Start & Fault Logic Enable 1.1Vset 0.9Vset www.irf.com IRU3011 V 10 ...
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... C 6 R13 12V V12 CS VID4 VID3 VID2 VID1 VID0 Figure 3 - Typical application of IRU3011 board DC-DC converter providing the Core supply for microprocessor. Part # HIP6004B IRU3011 Short Table 2 - Components that need to be modified to make the dual layout work for IRU3011and HIP6004B ...
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... IRU3011 and HIP6004B Dual Layout Parts List Ref Desig Description Q1 MOSFET Q2 MOSFET L1 Inductor L2 Inductor C1 Capacitor, Electrolytic C2, 9 Capacitor, Ceramic C3 Capacitor, Electrolytic C5 Capacitor, Ceramic C6 Capacitor, Ceramic C7 Capacitor, Ceramic C8 Capacitor, Ceramic C10 Capacitor, Electrolytic C14 Capacitor, Ceramic C15 Capacitor, Ceramic R1 Resistor R2 Resistor ...
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... IRU3011 APPLICATION INFORMATION An example of how to calculate the components for the application circuit is given below. Assuming, two sets of output conditions that this regu- lator must meet, a) Vo=2.8V, Io=14.2A, DVo=185mV, DIo=14.2A b) Vo=2V, Io=14.2A, DVo=140mV, DIo=14.2A the regulator design will be done such that it meets the worst case requirement of each condition. ...
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... Ts = 125 - 3.823(1.8 + 0.05) = 1188C With the maximum heat sink temperature calculated in the previous step, the heat-sink-to-air thermal resistance ( calculated as follows: SA Assuming T = 358C 118 - 35 = 838C A Temperature Rise Above Ambient 3.82 = 228C www.irf.com IRU3011 at 1258C, DS(ON) =1.88C/W (From the JC 9 ...
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... CL DS Rcs = Vcs / I = (0.418V) / (200mA) = 2.1KV B Where 200mA is the internal current setting of the B IRU3011 Switcher Timing Capacitor Selection The switching frequency can be programmed using an external timing capacitor. The value of Ct can be ap- proximated using the equation below: 3 Fsw Ct Where: ...
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... L2 to the output capacitors, C10 e) C10 to the slot 1 f) Input filter L1 to the C3 Connect the rest of the components using the shortest connection possible. Visit us at www.irf.com for sales contact information Data and specifications subject to change without notice. 02/01 www.irf.com IRU3011 TAC Fax: (310) 252-7903 11 ...
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... IRU3011 20-Pin Surface Mount, Wide Body PIN NO. 1 NOTE: ALL MEASUREMENTS ARE IN MILLIMETERS. 12 (W) SOIC Package C E DETAIL 0.51 0.020 SYMBOL 20-PIN MIN MAX A 12.598 12.979 B 1.018 1.524 C 0.66 REF D 0.33 0.508 E 7.40 7.60 F 2.032 2.64 G 0.10 0.30 I 0.229 0.32 J 10.008 10.654 K 08 ...
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... IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 Rev. 1.6 08/20/02 PIN PARTS COUNT PER TUBE Feed Direction Figure A Visit us at www.irf.com for sales contact information Data and specifications subject to change without notice. 02/01 www.irf.com IRU3011 PARTS T & R PER REEL Orientation 1000 Fig A TAC Fax: (310) 252-7903 13 ...