B C 5 6 7 8 E5 UVADJ R13 10 1S1+ 1S11S2+ 1S21S32 1S3+ +5V ITH R12 (Opt.) R99 0 C16 0.01uF R17 10 R19 10 C17 1000pF R22 10 R23 10 C19 1000pF R24 10 C20 1000pF R25 (Opt.) R26 1.5K R27 (Opt.) C22 100pF SENSE1+ BG1 20 PGND 19 6 SENSE2+ BG2 18 7 SENSE2- BG3 17 8 SENSE3- SW3 16 9 SENSE3+ TG3 15 BOOST3 14 PHASMD/PG 13 ITH 12 UVADJ R20 Vin+ 357K 1S1- 1S1+ 1 1 2 3 1 2 3 5 6 7 8 R8 1 C8 1uF 16V L2 CDEP105-0R4-MC50 C9 4.7uF 10V 1206 4 C14 0.1uF 3 Q5 Si7856DP 4 D3 B320A Q6 Opt. D4 BAT54 1 +5V Q7 Si7860DP R11 0.002 C12 1uF 6.3V + COUT1 330uF 2.5V Vout+ + COUT2 330uF 2.5 + COUT3 330uF 2.5V + COUT4 330uF 2.5V + COUT5 330uF 2.5V 1.5V at 90A/180A 3 1 C13 1uF 4 C15 10uF 16V 1210 + COUT6 330uF 2.5V L3 CDEP105-0R4-MC50 R15 (Opt.) R18 0 R21 121K J3 Vout+ J4 Vout+ 2 3 4 5 +5V 4 Vos+ R7 10 Vout+ 1S2- EAIN 21 Q4 Si7860DP 4 1S2+ 3 11 E2 2 22 RUN/SS C2 1uF 6.3V C7 10uF 16V 1210 1 SW2 10 5 6 7 8 5 6 7 8 DIFFOUT 4 Vin- 1 2 3 TG2 2 SENSE1- 10V-14V 1 2 3 2 1 DIFF- 23 5 CIN7 10uF 16V 1210 J2 + COUT7 330uF 2.5V + COUT8 330uF 2.5V + COUT9 330uF 2.5V 4 Q8 Si7856DP 4 D5 B320A Q9 Opt. R16 0.002 + COUT10 330uF 2.5V VoutJ5 R14 10 C18 1uF 6.3V 1S3- RUN/SS RUN/SS 1 C6 0.22uF 1S3+ Vin+ 24 CIN6 10uF 16V 1210 2 E4 BOOST2 CIN5 10uF 16V 1210 Vos+ 1 EAIN EAIN C11 220pF 25 CIN4 10uF 16V 1210 R3 0.002 VosE6 Vos- Vin+ 2 3 C10 47pF DIFF+ SW1 D2 B320A Q3 Opt. 5 6 7 8 VDIFFOUT R10 10K 32 26 CIN3 10uF 16V 1210 1 2 3 R9 6.65K FCB TG1 CIN2 10uF 16V 1210 1 2 3 E3 31 BOOST1 4 C4 0.22uF 5 6 7 8 VDIFFOUT PLLFLTR 27 Q2 Si7856DP 4 1 2 3 Vos- PLLIN 30 CLKOUT 5 6 7 8 R6 0 29 + CIN1 270uF 16V OS-CON 1 2 3 2 C3 0.01uF C5 1000pF 28 Vin+ C1 10uF 16V 1210 L1 CDEP105-0R4-MC50 5 6 7 8 R5 10K JP1 FREQ Q1 Si7860DP 4 U1 LTC3731CUH 3 R4 3.32K Vos+ J1 1 2 3 1 SGND R2 8.06K 33 R1 10 D1 BAT54A CLK1 Ext Sync +5V Vin+ 3 E1 Int Prog 4 SYNC-IN E C114 1uF 6.3V +5V SYNC-IN D 5 6 7 8 A 2 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 C21 2200pF ITH 12-Phase Version E7 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 J7 HEADER 1 1 LINEAR TECHNOLOGY CORPORATION 1630 McCarthy Blvd. Milpitas, CA. 95035 Phone : (408) 954-8400 Fax : (408) 434-0507 Title 6-Phase 90A / 12-Phase 180A High Efficiency Power Supply Size Document Number Rev DC561A-A Date: A B C D Tuesday, April 01, 2003 LTC3731CUH Sheet E 1 of 5 A B C D E 4 4 C115 1uF 6.3V Vin+ 3 5 6 7 8 +5V 4 C23 10uF 16V 1210 1 2 3 D6 BAT54A Q10 Si7860DP 22 +5V 21 4 SENSE1+ BG1 20 5 SENSE1- PGND 19 6 SENSE2+ BG2 18 7 SENSE2- BG3 17 8 SENSE3- SW3 16 9 SENSE3+ TG3 15 BOOST3 14 PHASMD/PG 13 10 RUN/SS 11 ITH 12 UVADJ C41 150pF PG 5 6 7 8 Vout+ 1 2 3 Vout+ L5 CDEP105-0R4-MC50 4 Q14 Si7856DP 4 Q15 Opt. D8 B320A R32 0.002 2S2- C33 4.7uF 10V 1206 1 R31 1 5 6 7 8 C32 1uF 16V + COUT11 + COUT12 + COUT13 + COUT14 + COUT15 330uF 330uF 100uF 100uF 100uF 2.5V 2.5V 6.3V 6.3V 6.3V C34 1uF 6.3V C37 0.1uF 3 D9 +5V BAT54 1 Q16 Si7860DP 4 C38 10uF 16V 1210 + COUT16 + COUT17 + COUT18 + COUT19 + COUT20 100uF 100uF 100uF 100uF 100uF 6.3V 6.3V 6.3V 6.3V 6.3V L6 CDEP105-0R4-MC50 R40 (Opt.) R41 (Opt.) 2 4 Q17 Si7856DP 4 Q18 Opt. D10 B320A R39 0.002 C42 1uF 6.3V 2 UVADJ 2S1- 2S1+ 5 6 7 8 2 SW2 EAIN 1 2 3 DIFFOUT 3 1 2 3 2 4 1 2 3 ITH R100 0 23 2S3- RUN/SS TG2 C30 10uF 16V 1210 2S2+ C39 1000pF C40 100pF DIFF- Q13 Si7860DP 2S3+ R38 10 1 C29 0.22uF 2 2S3+ 24 1 2 25 BOOST2 C24 1uF 6.3V 1 2 3 C36 1000pF 2S3- R36 10 R37 10 2S2- SW1 DIFF+ D7 B320A 3 5 6 7 8 C35 1000pF 2S2+ FCB 32 Q12 Opt. 1 2 3 R34 10 R35 10 2S1- 31 5 6 7 8 R33 10 2S1+ C31 10pF 26 PLLFLTR 1 2 3 EAIN TG1 30 4 C27 0.22uF 5 6 7 8 VDIFFOUT 27 PLLIN Q11 Si7856DP 4 R28 0.002 1 2 3 Vos- BOOST1 29 5 6 7 8 R30 0 28 SGND Vos+ C26 0.01uF C28 1000pF CLKOUT 33 R29 10K 3 5 6 7 8 U2 LTC3731CUH 1 L4 CDEP105-0R4-MC50 2 CLK2 1 CLK1 R42 0 1 1 LINEAR TECHNOLOGY CORPORATION 1630 McCarthy Blvd. Milpitas, CA. 95035 Phone : (408) 954-8400 Fax : (408) 434-0507 Title 6-Phase 90A / 12-Phase 180A High Efficiency Power Supply Size Document Number Rev DC561A-A Date: A B C D Tuesday, April 01, 2003 LTC3731CUH Sheet E 2 of 5 A B C D E 4 4 C116 1uF 6.3V Vin+ 3 5 6 7 8 +5V D11 BAT54A CLK3 4 C43 10uF 16V 1210 C59 1000pF BG1 20 5 SENSE1- PGND 19 6 SENSE2+ BG2 18 7 SENSE2- BG3 17 8 SENSE3- SW3 16 9 SENSE3+ TG3 15 BOOST3 14 PHASMD/PG 13 10 RUN/SS 11 ITH UVADJ C62 150pF 3S1- 3S1+ 5 6 7 8 1 2 3 1 2 3 L8 CDEP105-0R4-MC50 C53 4.7uF 10V 1206 4 Q23 Si7856DP 4 Q24 Opt. D13 B320A R47 0.002 C54 1uF 6.3V 3S2- SENSE1+ R46 1 C52 1uF 16V 3S2+ 4 12 C60 100pF 2 21 1 +5V 4 C50 10uF 16V 1210 5 6 7 8 EAIN 5 6 7 8 22 Q22 Si7860DP 1 2 3 23 SW2 C57 0.1uF 3 +5V D14 BAT54 1 Q25 Si7860DP 4 C58 10uF 16V 1210 2 L9 CDEP105-0R4-MC50 R54 (Opt.) R56 0 4 Q26 Si7856DP 4 Q27 Opt. D15 B320A R55 0.002 Vout+ C61 1uF 6.3V 2 1 2 3 ITH R101 0 TG2 DIFFOUT 5 6 7 8 RUN/SS DIFF- C49 0.22uF 3S3- R53 10 24 33 2 3 25 3S3+ 3S3+ 3S2- 2 SW1 BOOST2 2 C56 1000pF 3S3- R51 10 R52 10 3S2+ 1 C44 1uF 6.3V 3 1 C55 1000pF DIFF+ D12 B320A 1 2 3 R49 10 R50 10 3S1- FCB 32 26 5 6 7 8 R48 10 3S1+ 31 TG1 4 C47 0.22uF Q21 Opt. 1 2 3 C51 10pF PLLFLTR 27 5 6 7 8 VDIFFOUT EAIN 30 BOOST1 Q20 Si7856DP 4 1 2 3 Vos- PLLIN 5 6 7 8 R45 0 29 28 Vout+ R43 0.002 1 2 3 Vos+ C46 0.01uF C48 1000pF CLKOUT SGND R44 10K 3 5 6 7 8 U3 LTC3731CUH 1 L7 CDEP105-0R4-MC50 2 1 1 2 3 CLK2 Q19 Si7860DP UVADJ 1 1 LINEAR TECHNOLOGY CORPORATION 1630 McCarthy Blvd. Milpitas, CA. 95035 Phone : (408) 954-8400 Fax : (408) 434-0507 Title 6-Phase 90A / 12-Phase 180A High Efficiency Power Supply Size Document Number Rev DC561A-A Date: A B C D Tuesday, April 01, 2003 LTC3731CUH Sheet E 3 of 5 A B C D E 4 4 C117 1uF 6.3V Vin+ 5 6 7 8 +5V 3 CLKOUT D16 BAT54A 4 C63 10uF 16V 1210 1 2 3 E8 Q28 Si7860DP C79 1000pF 20 5 SENSE1- PGND 19 6 SENSE2+ BG2 18 7 SENSE2- BG3 17 8 SENSE3- SW3 16 9 SENSE3+ TG3 15 BOOST3 14 PHASMD/PG 13 RUN/SS 11 ITH 12 UVADJ 4 4S1- 4S1+ 5 6 7 8 1 2 3 Q32 Si7856DP 4 Q33 Opt. D18 B320A R61 0.002 4S2- BG1 L11 CDEP105-0R4-MC50 C73 4.7uF 10V 1206 4S2+ SENSE1+ 10 1 2 3 2 4 R60 1 C72 1uF 16V 1 21 4 C70 10uF 16V 1210 5 6 7 8 +5V 5 6 7 8 22 Q31 Si7860DP 1 2 3 23 SW2 C77 0.1uF +5V D19 BAT54 Q34 Si7860DP 4 3 1 C74 1uF 6.3V C78 10uF 16V 1210 2 L12 CDEP105-0R4-MC50 R68 100K C82 150pF 4 Q35 Si7856DP 4 Q36 Opt. D20 B320A R69 0.002 Vout+ C81 1uF 6.3V 2 1 2 3 ITH R102 0 C80 100pF TG2 DIFFOUT 5 6 7 8 RUN/SS DIFF- C69 0.22uF 4S3- R67 10 EAIN 24 33 2 3 25 4S3+ 4S3+ 4S2- 2 SW1 BOOST2 3 2 C76 1000pF 4S3- R65 10 R66 10 4S2+ 1 D17 B320A 1 C75 1000pF DIFF+ 26 Q30 Opt. 1 2 3 R63 10 R64 10 4S1- FCB 32 TG1 4 C67 0.22uF 5 6 7 8 R62 10 4S1+ 31 27 C64 1uF 6.3V 1 2 3 C71 10pF PLLFLTR BOOST1 5 6 7 8 VDIFFOUT EAIN 30 CLKOUT 1 2 3 Vos- PLLIN 5 6 7 8 Vos+ R59 0 29 Q29 Si7856DP 4 Vout+ R57 0.002 1 2 3 3 C66 0.01uF C68 1000pF 28 SGND R58 10K 5 6 7 8 U4 LTC3731CUH 1 L10 CDEP105-0R4-MC50 2 1 CLK3 UVADJ PG PG E9 SGND E15 1 1 LINEAR TECHNOLOGY CORPORATION 1630 McCarthy Blvd. Milpitas, CA. 95035 Phone : (408) 954-8400 Fax : (408) 434-0507 Title 6-Phase 90A / 12-Phase 180A High Efficiency Power Supply Size Document Number Rev DC561A-A Date: A B C D Tuesday, April 01, 2003 LTC3731CUH Sheet E 4 of 5 A B C D E Vout+ +12V Dynamic Load Circuit D21 MMBZ5231BLT1 1 3 C83 100pF TRIG1 3 Vout+ U5B LT1361CS8 2 C112 (Opt.) 1 + - Q39 FMMT718 1 VR1 LT1004CS8 U6 LT1210CR 4 C93 0.01uF C91 4.7uF 16V 1206 R78 0.010 2010 R80 2K -12V C94 0.1uF R79 0.010 2010 PGND C128 C129 C134 C139 PGND R89 10.7K 1% L14-2 10uH 6328-T064 C102 4.7uF 16V 3 1 On 2 VIN 4 SHDN 6 R103 6.65K 1% Ext. Int. C111 10uF 10V 1210 Vos+ +5V 3 R95 15 JP5 VID1 1 R88 (Opt.) 3 0 C105 (Opt.) 0 R90 1k 1 JP7 VID3 1 3 0 0 R104 20.0K 1% VID0 VID1 VID2 VID3 VCC FB GND NC VID4 SENSE 10 9 8 7 6 R86 (Opt.) EAIN R91 (Opt.) VDIFFOUT 2 C104 47pF C103 0.1uF 1 JP8 VID4 1 3 R96 8.06K 1% 1 2 3 4 5 JP6 VID2 1 3 R93 0 C107 1500pF U10 LTC1706EMS-61 1 1 C108 E14 1uF 16V 0805 Optional External Compensation and Voltage Programming Circuit 2 3 D27 B0530W +5V JP9 +5V SELECT 1 FB GND C110 1uF 16V 0805 2 3 1 SW C109 L15 .022uF 15uH 16V 0603 A914BYW-150M 1 Off BOOST 1 2 U11 LT1616ES6 5 VDIFFOUT R87 1.1K ITH C86 1000pF C106 39pF -12V R94 12.1K 1% 1 1 R92 (Opt.) D26 CMDSH-3 1 2 1 JP10 Int. 5V 4 + - 2 D25 B0540W Vin+ 2 3 2 2 U9 LT1806CS6 C101 0.1uF 0 C98 0.1uF 2 R84 11.8K 1% PGND JP3 VID0 1 3 2 R85 13.3K C99 4.7uF 16V +5V 2 1 L14-1 10uH 6328-T064 VR2 LT1634CMS8-1.25 6 4 2 1 2 U8 LT1930ES5 1 LINEAR TECHNOLOGY CORPORATION 1630 McCarthy Blvd. Milpitas, CA. 95035 Phone : (408) 954-8400 Fax : (408) 434-0507 Title 6-Phase 90A / 12-Phase 180A High Efficiency Power Supply Size Document Number Rev DC561A-A Date: A 3 +5V R82 2K C96 10pF 3 GND DLC BIAS C100 1uF X5R 6.3V +5V 6 FB C119 C131 100uF C120 C132 X5R C121 C133 6.3V C122 C135 C124 C136 C125 C137 C130 C138 C118 C123 C126 C127 (Opt.) 1 2 SHDN 2 4 4 D24 B0540W R83 115K SW JP4 2 On Off LOAD STEP +12V C95 1uF 16V X5R 1 5 VIN 3 C97 4.7uF 25V R98 0.010 2010 Vout+ E13 L13 10uH CMD4D08-100MC R97 0.010 2010 -12V 3 +5V J6 E12 -12V Vin+ C88 1uF 1 R75 20K 2 IMAX ADJ. 4 7 C87 1uF Q38 Q40 Q41 Q42 Si7806DN 3 6 R77 1K 5 6 7 8 C90 0.01uF 1 2 3 R74 (Opt.) 1 JP2 DLC 4 8 5 - R72 3.9K 0805 2 3 + 2 2 3 - 6 8 1 SLOPE UP C92 0.1uF C140 C141 C142 2 3 4 5 1 R81 50K 7 Q37 FMMT619 3 3 6 4 3 + 1 U5A LT1361CS8 1 1 5 1 2 D23 CMDSH-3 1 2 TLC555CD 22uF X5R 6.3V Vout+ C85 0.1uF 2 R73 50K C89 0.1uF 8 R70 390K Off On 3 OUT 2 8 TRIG RSET DSCH THRES CON D22 CMDSH-3 2 1 3 GND R76 1.5K VDD U7 2 4 7 6 5 E10 4 E11 SLOPE DOWN R71 39K C113 0.1uF +12V 8 +5V C84 4.7uF 16V 1206 4 4 C143 C144 (Opt.) +12V +12V B C D Tuesday, April 01, 2003 LTC3731CUH Sheet E 5 of 5