Intel VC820 Design Guide - Page 235
Intel VC820 - Desktop Board Motherboard Manual
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8 7 6 5 Voltage Regulators D 4 3 2 VCC5DUAL 1 D VCC 2.5 Standby Voltage Regulator VCC2_5SBY_TG VCC2_5SBY_SW C315 + 1 C314 + 1 1UF-X7R 2 100UF 2 VCC2_5SBY VR7 CMDSH-3 Q11 SI4966DY 8 D1 7 D2 1 S1 2 G1 MBRS140T3 CR10 R297 100-1% 330UF 330UF 100PF VCC2_5SBY_L CR9 SENSE+ 8 SENSE- 7 D3 6 D4 5 S2 3 G2 4 LT1435 CR8 VCC2_5SBY_COSC 4 SFB 1 COSC VIN 13 TG 16 L23 Do not stuff C304. R325 C 11 SLP_S5# 3 1 VCC2_5SBY_RUN 2 RUN/SS SW 14 10UH 0.01 MMBD914LT1 C295 VCC2_5SBY_ITH 3 ITH INTVCC 12 VCC2_5SBY_INTVCC CDRH125 C304 C C294 5 SGND BOOST 15 V_BOOST 11K R302 68PF 0.1UF 330PF C296 C293 6 VOSENSE 9 EXTVCC BG 11 PGND 10 1 4.7UF + 2 1 0.1UF +A -C C- 0.1UF C312 A+ R301 100-1% 2 1 + 2 1 C325 + C326 AVX 330uF TPS x2 C307 + C306 2 100PF C292 C299 1000PF VCC2_5SBY_BG R294 10K R295 SBY_ITH_R 100PF 10K VCMOS Generator For Rambus VCC2_5SBY_SENSE+ VCC2_5SBY_SENSEVCC2_5SBY_VOSENSE VCC2_5SBY Do not stuff C292. B B VCMOS1_8SBY R259 35.7-1% C263 R258 100-1% 0.1UF A A TITLE: INTEL(R) 820 CHIPSET DUAL PROCESSOR CUSTOMER REFERENCE BOARD REV: VOLTAGE REGULATORS 3.03 R PCD PLATFORM DESIGN DRAWN BY: PROJECT: 1900 PRAIRIE CITY ROAD FOLSOM, CALIFORNIA 95630 LAST REVISED: SHEET: 11-29-1999_14:46 32 OF 38 8 7 6 5 4 3 2 1