5 4 3 VDD33-1 VDD25-1 GND 2 1 REVISION HISTORY INT/EXTVCC-1 ECO R1 2 C2 0.22uF C5 10uF L1 R4 40 C25 10nF Q8 15 RUN1 14 RUN0 23 SC R22 0 R28 OPT 24 17 R29 10K 18 19 20 VDD33-1 21 VDD33 RUN0 TG1 ASEL BOOST1 WP SW1 SC BG1 ISNS1+ FREQ_CFG ISNS1- VOUT0_CFG VSENSE1 VOUT1_CFG VTRIM0_CFG GPIO1 VTRIM1_CFG GND 1 GPIO0 R36 OPT R37 OPT R44 0 R45 0 + + C15 330uF D3L C10 330uF D3L * R86 * * VSENSE+ TP15 VOUTO+ * * * * C TP16 VOUTO- VOUT1 30 R20 0 31 C26 100nF 29 L2 SW1-1 R21 0 0.4uH 2512 9 32 3 Q2 FDMS3600S R23 1K R25 0 R26 OPT C31 R24 OPT C32 C33 + C27 + 100uF 100uF 100uF 330uF D3L C28 + C29 330uF D3L + C30 330uF 330uF D3L D3L 4 BG1-1 27 C34 0.22uF 13 12 R30 0 R31 1K C35 1uF VSENSE+ VDD33-1 B VIN VIN R38 10K TG0-1 SGND AND PGND CONNECTED AT A SINGLE NODE NEAR U1 4 C82 C81 10uF 10uF Q7 TG1-1 C80 10uF C74 10uF 4 1 2 3 1 2 3 * R43 5.76K * R19 C22 10uF Q9 R42 C9 330uF D3L VSENSE- D2 R39 10K R41 15K + C14 330uF D3L R84 R74 R80 R83 2 ADDRESS: 0x48 R40 11K + VIN TG1-1 5 R35 24.9K 41 B R34 24.9K 8 7 6 5 7 R27 0 R33 20K R85 C21 1uF 6 RUN1 VDD25-1 R32 20K 25 22 35 33 VSENSE0- TSNS0 C13 R18 1K 36 PHASE 16 VSENSE0+ TSNS1 C12 100uF 100uF 100uF R12 1 C23 10nF ISNS0- ITH0 C11 R11 R14 OPT OPT J11 8 Q5 28 39 2 C MMBT3906LT1G MMBT3906LT1G 5 PLACE Q5,Q6 NEAR L2,L1. RESPECTIVELY ISNS0+ ITH1 R10 0 R16 0 7 26 BG0 LTC3880EUJ 2512 R13 1K GND C20 0.22uF 3 ITH1 ALERT SW0 U1 0 37 6 11 ALERTB SYNC BOOST0 D VOUT0 SW0-1 9 38 5 * SDA TG0 2 8 SYNC SCL VDD25 10 SDA R15 * 9 SCL 1 R17 C17 OPT PGND C19 100pF 34 * INTVCC C16 C18 100pF VIN * Q1 FDMS3600S BG0-1 4 R5 R6 R7 R8 10K 10K 10K 10K 3-23-12 VOUT0 J9 0 C6 100nF C8 1uF 1 4 C7 1uF R3 0.4uH R9 DATE YI S. TG0-1 PHASE VDD33-1 APPROVED 1st PROTOTYPE VIN D1 VDD33-1 GND TP9 DESCRIPTION 1 EXTVCC_DRV 2 C69 150uF OPT 5 D + C1 4.7uF REV __ INTVCC-1 1 J2 GND C3 150uF 35V VDD25-1 R2 + TP5 INTVCC-1 J1 VIN 7V - 14V TP4 3 VIN VIN TP3 TP2 2 TP6 VIN GPIO0B GPIO1B * 4 BG1-1 4 2. INSTALL SHUNTS AS SHOWN. ASSY A BG0-1 1 2 3 1. ALL RESISTORS ARE IN OHMS, 0603. ALL CAPACITORS ARE IN MICROFARADS, 0603. Q10 1 2 3 NOTE: UNLESS OTHERWISE SPECIFIED -A -B Vout0 / Iout0 Vout1 / Iout1 1.2V / 100A 1.5V / 25A R84,R74,R80,R83 0 OPT Fsw R9,R85,R86 R12,R19 CUSTOMER NOTICE 425kHz 425kHz 0 OPT C17 C16 R15 R17 JP2 JP5 4.7nF 4.7nF 4.7nF 4.7nF OPT 0 4.87K 4.87K "C" "NC" "C" "NC" 1.5V / 75A OPT 0 4 APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. TECHNOLOGY HZ YI S. 3 OPTIONAL FOR DISCRETE MOSFET 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC POLYPHASE DC/DC CONVERTER WITH DIGITAL PWR MANAGEMENT SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 SW1-1 5 5 SW0-1 Q11 N/A SCALE = NONE 2 DATE: IC NO. REV. LTC3880EUJ FAMILY DEMO CIRCUIT 1740A 1 Tuesday, February 05, 2013 SHEET 1 1 OF 4 A 4 3 GND VDD33-2 TP19 2 TP22 TP20 TP21 R46 OPT 3 D C39 100nF R48 0 C41 1uF C42 1uF R61 0 14 16 24 R95 0 SC R94 OPT 17 R96 10K 18 19 20 VDD33-2 21 WP SW1 SC BG1 ISNS1+ FREQ_CFG ISNS1- VOUT0_CFG VSENSE1 VOUT1_CFG VTRIM0_CFG GPIO1 VTRIM1_CFG GPIO0 GND R72 24.9K R73 OPT 8 7 6 6 1 R79 0 + C49 330uF D3L R50 0 VOUT1 1.5V / 75A TP24 VOUT1+ GND R90 0 R58 0 D4 2 TP26 VOUT1- Q4 FDMS3600S C C58 10uF TG1-2 30 R59 0 31 SW1-2 C59 100nF 29 BG1-2 32 L4 R60 0.4uH 0 2512 9 R62 1K 3 R64 0 R63 OPT R65 OPT C64 100uF C65 C66 100uF 100uF + C61 330uF D3L + C62 + C63 330uF D3L 330uF D3L + C60 330uF D3L 4 27 R68 0 C67 0.22uF 13 12 VDD33-2 R69 1K C68 1uF R91 10K R75 0 B VIN C84 TG0-2 SGND AND PGND CONNECTED AT A SINGLE NODE NEAR U1 Q13 10uF 4 VIN C83 C86 10uF TG1-2 Q16 10uF 4 C85 10uF 1 2 3 1 2 3 R78 5.76K C48 330uF D3L VIN GPIO1B R77 0 + VSENSE- ADDRESS: 0x49 R76 12.7K C47 330uF D3L C54 1uF 7 5 R71 0 VDD33 BOOST1 41 R70 20K 25 ASEL VDD25-2 B VDD25 TG1 + 330uF D3L 100uF R57 1K RUN1 RUN0 C46 VSENSE+ 36 PHASE 23 VSENSE0- TSNS0 100uF 100uF + 5 RUN1 TSNS1 C45 J4 1 Q18 15 VSENSE0+ C44 R89 0 8 C57 10nF ISNS0- ITH0 R54 OPT R53 OPT R55 0 2 C56 10nF 40 ISNS0+ ITH1 C53 0.22uF 39 7 Q15 MMBT3906LT1G MMBT3906LT1G C 28 BG0 LTC3880EUJ C43 37 3 5 PLACE Q15,Q18 NEAR L4,L3. RESPECTIVELY 22 5 26 ALERT SW0 U2 4 11 ALERTB SYNC TG0 BOOST0 5 8 SDA 2 R67 0 SCL 1 SYNC 10 2512 R52 0 J3 0 38 PGND SDA R49 R51 1K BG0-2 34 SCL R56 4.87K INTVCC C52 100pF 33 35 C51 100pF 9 VOUT1 L3 9 0.4uH VIN C50 4.7nF SW0-2 PHASE ITH1 C37 10uF VDD33-2 C40 0.22uF R66 0 Q3 FDMS3600S 4 TG0-2 6 VIN 2 VIN D3 1 R47 VDD25-2 VIN EXTVCC_DRV 2 C36 4.7uF D 1 INT/EXTVCC-2 1 VDD25-2 2 5 Q14 4 BG1-2 4 1 2 3 BG0-2 SW1-2 5 5 SW0-2 Q12 1 2 3 OPTIONAL FOR DISCRETE MOSFET CUSTOMER NOTICE APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A TECHNOLOGY HZ YI S. TITLE: SCHEMATIC POLYPHASE DC/DC CONVERTER WITH DIGITAL PWR MANAGEMENT SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 3 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only N/A SCALE = NONE 2 DATE: IC NO. REV. LTC3880EUJ FAMILY DEMO CIRCUIT 1740A 1 Tuesday, February 05, 2013 SHEET 2 1 OF 4 A 4 3 VOUT1 GND 2 IOUT TEST R103 R111 0.02 0.02 C78 0.22uF D5 GPIO0 GREEN D6 Q23 2N7002A 1 GPIO0B 1 1 GPIO1B TP0101K Q22 D7 Q24 2N7002A 2 NOTE: PULSE OUT 10mV / AMP ALERTB GPIO1 GREEN 3 TP42 +3.3V R101 200 R100 200 3 R102 10K +3.3V D J6 1 2 PULSE IN Q21 SUD50N03-10CP-E3 1 2 3 4 5 TP40 VOUT +3.3V C72 0.22uF D J5 1 2 3 4 5 DYNAMIC LOAD CIRCUIT 1 3 3 R106 50 2 ALERT RED R104 127 2 5 VIN ON C R107 100K 2 5 OFF 1 6 7 8 C77 1uF U5 SHDN GND NC GND GND SENSE/ADJ VIN OUTPUT LT1129CS8-5 4 C 3 C76 4.7uF 2 1 3V3 EXTVCC_DRV VDD33-1 Q25 TP0101K 3 1 VIN 3V3 VIN 3 2 VIN R82 10K R88 10K R81 10K R87 10K VIN JP3 R105 100K 3 LED ON OFF 2 5 6 1 B 7 8 C73 1uF U4 SHDN GND NC GND GND SENSE/ADJ VIN OUTPUT LT1129CS8-3.3 4 3 +3.3V B 2 1 C75 10uF CUSTOMER NOTICE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 VDD33-2 Q26 TP0101K 2 1 3 JP4 EXTVCC_DRV 4 3 APPROVALS TECHNOLOGY PCB DES. HZ APP ENG. YI S. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC POLYPHASE DC/DC CONVERTER WITH DIGITAL PWR MANAGEMENT SIZE N/A SCALE = NONE 2 DATE: IC NO. REV. LTC3880EUJ FAMILY DEMO CIRCUIT 1740A 1 Tuesday, February 05, 2013 SHEET 3 1 OF 4 A 5 4 3 2 1 ALL PARTS ON THIS PAGE ARE FOR DEMO ONLY, NOT NEEDED IN CUSTOMER DESIGN D SDA TP28 TP25 ALERTB SCL TP7 SDA SC TP10 SCL SYNC TP23 TP11 GPIO1B R109 0 JP5 3 TP27 R119 0 SYNC GPIO1B 2 ALERTB AUXP D R126 OPT 1 C NC GPIO0-GPIO1 GPIO0B R128 OPT. SC R115 TP14 RUN0 0 RUN0 2 J10 1 2 3 4 5 6 7 8 9 10 11 12 AUXP SDA GND SCL LGKPWR ALERTB GPIO_1 OUTEN_0 OUTEN_1 GND AUXSCL AUXSDA TO DC1613A SHARE_CLK FAULT2 FAULT3 FAULT1 SYNC_C +3.3V VIN_SNS GND VIN_EN SCL ALERTB SDA CONTROL0 SPARE1 SW3 SPARE2 WDI/RESETB RUN1 CONTROL1 ON SPARE3 SHARE_CLK 5 FAULT4 FAULT2 OFF FAULT3 FAULT1 SPARE4 GND J7 DEMO HEADER (F) RUN1 VDD33-2 TP13 RUN1 VDD33-1 R112 10K R110 10K C SW4 RUN0 2 R114 10 C70 10nF 4 1 3V3 C 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 NC 1 ON 5 2 R113 10 OFF 6 3 1 +3.3V 2 VIN_SNS 3 GND 4 VIN_EN 5 SCL 6 ALERTB 7 SDA 8 CONTROL0 9 SPARE1 10 SPARE2 11 WDI/RESETB 12 CONTROL1 13 SPARE3 14 SHARE_CLK 15 FAULT4 16 FAULT2 17 FAULT3 18 FAULT1 19 SPARE4 20 GND J8 DEMO HEADER (M) 0 4 1 3V3 R116 R124 OPT JP2 3 C RUN0-RUN1 6 3 R129 0 TP12 GPIO0B C71 10nF R117 OPT R118 OPT SGND TP30 TP8 SGND C79 100nF B B R120 4.99K U6 1 2 3 4 A0 VCC A1 WP A2 SCL VSS SDA 8 AUXVCC 7 EEWP 6 EESCL 5 EESDA R121 4.99K R122 4.99K 24LC025-I/ST R127 OPT CUSTOMER NOTICE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 3 APPROVALS TECHNOLOGY PCB DES. HZ APP ENG. YI S. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC POLYPHASE DC/DC CONVERTER WITH DIGITAL PWR MANAGEMENT SIZE N/A SCALE = NONE 2 DATE: IC NO. REV. LTC3880EUJ FAMILY DEMO CIRCUIT 1740A 1 Tuesday, February 05, 2013 SHEET 4 1 OF 4 A