5 4 3 2 1 REVISION HISTORY C1 ECO VDR 1uF R2 24.9K C21 3 TSNS1_1 29 COMP0_1 R30 4.32k VOUT1_CFG FB1 FREQ_CFG VSENSE1+ PHAS_CFG ISENSE1- IAVG0 9 VIN 6 8 NC VIN 4 29 PVCC SW SW 100uF 1206 C41 100uF 1206 100uF 1206 + + C15 OPT + C16 OPT + C17 470uF + C18 470uF C55 470uF 21 25 SW PGND 100uF 1206 C29 0.22uF R16 0 J4 GND C VOUT0+ BG1/EN1 ISNS1-_1 32 ISNS1+_1 C31 P3 27 28 VDR TG1_1 VDR 1uF C35 1uF C52 0.1uF P10 41 1 R57 1k 31 R58 1k 2 VDR R41 0 27 0603 ASEL1_1 R32 5.76k 0603 VOUT0_CFG_1 VOUT0- VSENSE0+_1 33 R15 24.9K 3 IAVG1 TG1/PWM1 34 28 PWM VIN VIN VIN ZCD# VIN GL BOOT VIN AGND GL PHASE GL SW PGND SW PGND PGND SW PGND SW SW SW C34 22uF 1206 10 11 TSNS1_1 B 33 5 7 C48 10nF R25 0 Q6 MMBT3906LT1G C36 100nF VOUT0 16 17 18 19 20 L2 0.17uH FP1007R3-R17-R R27 1.5k C43 C38 C39 C40 C50 C54 OPT 1206 100uF 1206 100uF 1206 100uF 1206 100uF 1206 100uF 1206 + C19 470uF + + C26 OPT + C27 OPT C28 470uF + C60 470uF 21 14 SW 22 R34 OPT SW U3 FDMF5820DC R36 OPT C33 22uF 1206 EN/FAULT# VOUT1_CFG_1 R35 OPT 100uF 1206 C14 30 PGND R33 OPT C13 VSENSE0-_1 15 0603 OPT 1206 R7 1.5k 20 C12 VDD33_1 34 R31 24.9k C23 E5 35 0603 19 VSENSE0+_1 SW R29 24.9k VOUT0 0.17uH FP1007R3-R17-R 180 IAVG0_GND ASEL0_1 L1 18 VSENSE0+_1 P4 VDD25_1 R9 2200pF 23 B SW 26 VCC 4 COMP1 5 Address: 0x43 17 J3 GND 47pF TSNS0_1 GND 31 C37 56pF 2 VOUT0_CFG IAVG_GND 1K VOUT0 VOUT0 E6 ASEL1 ISENSE1+ 39 J18 MMBT3906LT1G ASEL0 R26 IAVG0 Q1 16 9 PHAS_CFG_1 21 C32 10nF 100nF VIN WP 20 C11 0 J19 8 FREQ_CFG_1 19 5 7 R5 VFB0_1 C22 220pF VIN VOUT1_CFG_1 RUN0 R23 OPT 18 D TSNS0_1 33 0603 COMP0_1 R12 7.32k 6 VOUT0_CFG_1 TSNS1 11 R24 0 NC GPIO0B 17 C10 22uF 1206 10 C20 24 R20 10k 0603 ASEL1_1 16 DATE HAORAN W. 11-17-15 0603 C30 WP TSNS0 ASEL0_1 1 APPROVED PRODUCTION 40 SYNC SYNC SHARE_CLK VSENSE0-_1 SW SW R19 10k 0603 COMP0 VSENSE0+_1 35 SW 25 0603 FB0 SHARE_CLK ISNS0-_1 SW 0603 RUN1 37 36 FDMF5820DC 29 WP 8 23 VSENSE0- ISNS0+_1 PVCC SYNC ALERTB 24 RUN0 38 4 SHARE_CLK VSENSE0+ U1 6 PGND R17 2k SDA ISENSE0- GPIO1 PGND 26 R14 2k 15 GPIO0 SW 12 R13 10k 0603 SCL 14 ISENSE0+ SW PGND PGND PGND R11 10k 0603 RUN0 BG0/EN0 LTC3882EUJ 28 32 13 R10 10k 0603 C 12 U2 SDA ALERT TG0/PWM0 TG0_1 SW PGND AGND GPIO0B VDD33_1 10 11 15 P9 7 PHASE GL PGND SDA ALERTB 34 BOOT VIN AGND GL 14 E4 VDD25_1 SCL VINSNS SCL VDD25_1 9 22 VDD33 VDD33_1 E3 VDD33_1 VDD25 25 GND GL 22 35 SW 27 C9 4.7uF VIN 26 C8 1uF ZCD# 12 C7 1uF E2 VIN 23 2 VDR VIN EN/FAULT# 24 P2 VDD33_1 PWM C6 22uF 1206 SW 31 R60 1k 32 3 R59 1k VCC VDD25_1 DESCRIPTION 2 VIN AGND GND VDD33_1 PGND C5 0.1uF 6.3V 13 C4 330uF 16V 30 + VCC 1 1 J2 C3 330uF 16V 13 D + VCC R1 VIN 7V-14V TMON J1 AGND C53 0.1uF AGND C2 1uF P1 30 VIN TMON VDR E1 VIN REV __ VIN C42 0.22uF FREQ_CFG_1 R37 24.9k 0603 R39 OPT R38 9.09k 0603 PHAS_CFG_1 CUSTOMER NOTICE R40 OPT A NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE IN OHMS, 0402. ALL CAPACITORS ARE IN MICROFARADS, 0402. 2. INSTALL SHUNTS AS SHOWN. 5 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 APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. HAORAN W. TITLE: SCHEMATIC HIGH EFFICIENCY HIGH DENSITY POLY-PHASE BUCK STEP DOWN CONVERTER WITH POWER SYSTEM MANAGEMENT SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 3 TECHNOLOGY HZ 2 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 DATE: IC NO. LTC3882EUJ REV. DEMO CIRCUIT 2291A Tuesday, December 22, 2015 2 SHEET 1 1 OF 4 A 5 4 3 2 1 C77 VDD25_2 ASEL0_2 C70 56pF R44 5.76k 0603 R55 OPT 9 VIN 6 8 NC VIN 4 29 PVCC 32 AGND AGND SW L3 18 0.17uH FP1007R3-R17-R 19 R93 1.5k 20 VOUT1_CFG FB1 FREQ_CFG VSENSE1+ PHAS_CFG ISENSE1- IAVG0 IAVG1 TG1/PWM1 BG1/EN1 0.22uF R110 24.9K 34 P7 VSENSE0+_1 1 33 R105 P8 32 R107 VDR 27 28 P12 1k 1k 31 2 27 35 34 28 PWM R100OPT C87 22uF 1206 VIN EN/FAULT# VIN ZCD# VIN GL GL BOOT VIN AGND PHASE GL SW PGND SW PGND PGND SW PGND 0603 VOUT0_CFG_2 R51 0 + + C69 470uF + C76 470uF + C79 OPT + C80 OPT C99 470uF C63 C64 C65 100uF 1206 100uF 1206 100uF 1206 C + + C82 470uF + C83 OPT + C84 OPT C100 470uF U6 FDMF5820A SW SW 10 11 TSNS1_2 33 5 7 C73 10nF R109 0 Q2 MMBT3906LT1G C88 100nF B 16 17 18 19 20 L4 0.17uH FP1007R3-R17-R R111 1.5k C85 R50 OPT C75 100uF 1206 C86 22uF 1206 0.22uF VOUT1_CFG_2 R48 OPT C74 100uF 1206 VIN 9 30 15 IAVG0_GND R65 5.76k R47 OPT C72 OPT 1206 21 SW SW 22 SW 23 25 SW PGND MMBT3906LT1G VOUT0 17 VIN C68 0.1uF PGND R64 24.9k 0603 ASEL1_2 Q3 16 1uF C90 1uF 14 0603 VDR 29 VOUT0_CFG 5 R42 24.9k C98 10nF 100nF VDR 8 COMP1 GND B C71 C89 VIN ASEL1 41 31 TSNS1_2 ASEL0 IAVG_GND Address: 0x44 39 3 6 TSNS1 ISENSE1+ IAVG0 7 TSNS0_2 R45 0 C81 470uF SW PHAS_CFG_2 5 C94 C95 C96 OPT 1206 OPT 1206 OPT 1206 21 21 TSNS0_2 SW 20 FREQ_CFG_2 2 22 VOUT1_CFG_2 33 + WP NC 19 COMP0_1 SW 18 VOUT0_CFG_2 1 SW 17 ASEL1_2 11 SYNC 23 ASEL0_2 24 26 VCC 4 22 COMP0 C66 22uF 1206 10 C58 SHARE_CLK TSNS0 16 40 SW 24 23 WP FB0 VDD33_2 SW 29 8 RUN1 VSENSE0-_1 FDMF5820A PVCC R117 0 SYNC VSENSE0- U4 SW 24 RUN0 35 SW PGND VSENSE0+_1 25 R116 0 SHARE_CLK VSENSE0+ 28 SW PGND PGND 26 15 C GPIO1 37 36 SW PGND 4 RUN0 ISENSE0- 15 PHASE GL 32 14 GPIO0 38 GL BOOT VIN AGND AGND R115 0 ISENSE0+ 34 GL AGND 13 LTC3882EUJ P11 VIN SW 12 ALERT 6 ZCD# PGND GPIO0B 11 ALERTB R114 0 BG0/EN0 7 VIN 26 VDD25_2 35 TG0/PWM0 U8 SDA 27 VIN EN/FAULT# 12 10 SDA 2 PWM 14 VDD25_2 E8 SCL 1k VDR 31 3 SCL VINSNS 9 VDD25 25 VDD33 E7 VDD33_2 R103 1k C67 22uF 1206 SW R63 P6 VDD33_2 30 3 1 C25 4.7uF 12 C57 1uF VCC P5 TMON C47 1uF VIN D VCC VDD25_2 PGND VDD33_2 R3 24.9K PGND C51 4.7uF 6.3V VDD33_2 C56 0.1uF 13 C24 330uF 16V 1uF C97 1uF 30 + VDR VCC C46 330uF 16V 1 TMON + R4 PGND D VDR VIN 13 VIN C92 C91 C93 OPT 1206 100uF 1206 OPT 1206 FREQ_CFG_2 CUSTOMER NOTICE PHAS_CFG_2 A R52 OPT R53 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 APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. OPT TECHNOLOGY HZ HAORAN W. TITLE: SCHEMATIC HIGH EFFICIENCY HIGH DENSITY POLY-PHASE BUCK STEP DOWN CONVERTER WITH POWER SYSTEM MANAGEMENT SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 3 2 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 DATE: IC NO. LTC3882EUJ REV. 2 DEMO CIRCUIT 2291A Tuesday, December 22, 2015 SHEET 2 1 OF 4 A 5 4 3 2 1 INTVCC R49 RPG1 100k 1% VIN CIN1 22uF 35V 7343 + CIN5 10uF VCC 25V 1206 ON VIN1 PGOOD1 D 2 SW1 13 2 14 E9 L5 4.7uH 7 CFFW1 22pF R66 619k 1% JP7 VIN2 VDR FB1 2 OFF 3 9 4 PULSE IN Max. 500mA COUT8 0.1uF 16V 0603 R43 10K 0603 DO NOT EXCEED 5% DUTY CYCLE! E24 J15 C49 1uF 0805 R46 0.01 2512 GND NOTE: PULSE OUT 10mV / AMP R69 84.5K 1% RUN2 IOUT TST 1 GND E11 12 1 ON E23 VCC COUT7 47uF 1206 RUN1 3 OFF Q4 RJK0305DPB VCC 1 2512 5 1 0.01 VOUT0 DYNAMIC LOAD CIRCUIT 2 3 4 5 LTC3622EDE 1 2 3 U7 VIN D JP5 J16 1 VOUT0 C59 0.1uF 0805 MODE/SYNC VOUT0 C 2 3 4 5 3 C E21 GND E22 GND 4 D12 PHASE PGOOD2 5 1 2 RUN0 VDR SW2 6 8 R67 619k 1% 11 CFFW2 22pF COUT9 47uF 1206 Max. 500mA COUT10 0.1uF 16V 0603 E26 10 GND R68 84.5K 1% B 15 C61 1uF INTVCC GND FB2 E25 VDR ILIM INTVCC B L6 4.7uH 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 APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A TECHNOLOGY HZ HAORAN W. TITLE: SCHEMATIC HIGH EFFICIENCY HIGH DENSITY POLY-PHASE BUCK STEP DOWN CONVERTER WITH POWER SYSTEM MANAGEMENT SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 3 2 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 DATE: IC NO. LTC3882EUJ REV. 2 DEMO CIRCUIT 2291A Tuesday, December 22, 2015 SHEET 3 1 OF 4 A 5 4 3 2 1 ALL PARTS ON THIS PAGE ARE FOR DEMO BOARD ONLY, NOT NEEDED IN CUSTOMER DESIGN D AUX3V4 ALERTB SDA SCL SHARE_CLK E10 E13 E14 VDD33_1 1 E16 2 VDD33_2 AUX3V4 SCL GND SDA E17 E18 D9 1 SYNC E15 D8 J17 D SYNC GPIO0B 2 ALERTB 4 3 2 1 SDA SCL SHARE_CLK R73 0 GPIO0B 0603 D7 OPT E19 RUN0 TO DC2086A R71 0 C 1 2 3 4 5 6 7 8 9 10 11 12 100nF R76 4.99K 0603 U5 2 3 4 VCC A1 WP A2 SCL VSS SDA 8 AUXVCC 7 EEWP 6 EESCL 5 EESDA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 FAULTB CTRL ALERTB SDA SHARE_CLK SCL RESETB AUXP UNUSED UNUSED GND GND 12V 12V C45 0603 A0 R83 0 0603 R92 OPT TO DC1613A 1 0603 R77 4.99K 0603 VIN OPT R75 OPT SGND FAULTB CTRL ALERTB SDA SHARE_CLK SCL RESETB AUXP UNUSED UNUSED GND GND 12V 12V C SW4 RUN0 ON 5 2 R70 10 0603 OFF C44 10nF 0603 J12 DEMO HEADER (F) R82 OPT 1206 R74 E20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 J13DEMO HEADER (M) 24LC025-I/ST R78 OPT 4 1 AUXP SDA GND SCL LGKPWR ALERTB GPIO_1 OUTEN_0 OUTEN_1 GND AUXSCL AUXSDA 3V3 6 3 3V3 J11 RUN0 PSM STACKING CONNECTORS: J12, FEMALE, CONN RECEPT 2MM DUAL R/A 14POS, Sullins Conn. NPPN072FJFN-RC J13, MALE, CONN HEADER 14POS 2MM R/A GOLD, Molex Connector Corp. 87760-1416 B B E12 3V3 GND 3 3V3 VDD33_1 2 2 3V3 Q19 SI2365EDS 1 R81 200 0603 ALERTB 1 3 GREEN VDD33_2 2 3 3 D5 Q22 SI2365EDS SI2365EDS Q20 GPIO0 VIN 2N7002A R84 127 0603 2 GPIO0B ALERTB RED 1 D10 Q21 1 R86 10K 0603 R87 15.8k 0603 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 APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. A TECHNOLOGY HZ HAORAN W. TITLE: SCHEMATIC HIGH EFFICIENCY HIGH DENSITY POLY-PHASE BUCK STEP DOWN CONVERTER WITH POWER SYSTEM MANAGEMENT SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 3 2 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 DATE: IC NO. LTC3882EUJ REV. 2 DEMO CIRCUIT 2291A Tuesday, December 22, 2015 SHEET 4 1 OF 4 A