5 4 3 2 1 REVISION HISTORY VIN1 VDD33_1 J1 R2 1 1% VIN 7V - 14V + C2 270uF 16V J2 0805 R3 0 INTVCC_1 EXTVCC C4 4.7uF E2 R4 0 CIN1 22uF 1210 4.7uF SCL SDA ALERTB SHARE_CLK 11 SCL 12 SDA 13 ALERTB 14 SHARE_CLK 27 RUN0 17 RUN1 18 RUN1 26 WP1 46 47 25 38 28 IIN- SW0 BOOST0 SDA BG0/EN0 ALERTB ISENSE0+ RUN0 ISENSE0- RUN1 VSENSE0+ WP VSENSE0- 10 9 C17 10nF TG1/PWM1 ITH_R1 SW1 ITH1 TSNS0 BG1/EN1 TSNS1 VDD25_1 VSENSE1+ VOUT0_CFG VSENSE1- J4 GND E4 VSENSE0- OPT VOUT0C 35 TG1 34 SW1 TG1 SHT3 36 BST1 37 BG1 SW1 SHT3 Q3 BSG0811ND CIN8 22uF 1210 5 6 7 3 4 CIN5 22uF 1210 PHASE_CFG CIN7 22uF 1210 L2 E5 CIN6 22uF 1210 VSENSE1+ VOUT1+ R18 10 1% VOUT1 0.25uH VOUT1 SHT 2,3 J5 2 C16 220nF R19 0 C15 0.1uF D2 VOUT1 744301025 VIN1 INTVCC_1 SW1 SHT3 8 32 31 CMDSH-3-TR 15 BG1 SHT3 R20 715 1% R114 0 COUT5 100uF 6.3V 1210 COUT6 100uF 6.3V 1210 COUT7 + 470uF 2.5V 7343 COUT8 + 470uF 2.5V 7343 1.0V AT 160A J6 FREQ_CFG FAULT0 41 R23 1.96k 1% FAULT1 5 6 7 1 16 GND R21 10 1% 2 Q4 8 VSENSE1+ B E6 VSENSE1- BSG0811ND VOUT1- VSENSE1- 10 OPT R113 0 R17 VOUT1_CFG PGOOD0 24 R28 COUT4 + 470uF 2.5V 7343 VSENSE0- 48 23 ASEL1 PGOOD1 22 ISENSE1- 33 C14 10nF ASEL0 GND 21 OPT 2 COUT3 + 470uF 2.5V 7343 R16 OPT VSENSE0+ 1 49 20 R27 1 COUT2 100uF 6.3V 1210 VIN1 ITH0 ISENSE1+ 19 OPT 8 VOUT0 COUT1 100uF 6.3V 1210 BSG0811ND 9 30 Q10 R26 8 C9 220nF ITH_R0 BOOST1 ITH1 OPT Q2 7 SHARE_CLK VOUT0 SHT 3 J3 R14 715 1% 2 BG0 SHT3 4 ITH_R1 29 R25 5 6 7 1 CMDSH-3-TR 42 BG0 0.25uH D1 0.1uF 3 C13 OPT ITH0 R22 30.1k 1% R15 0 VOUT0 744301025 9 C12 OPT Q9 MMBT3906-AL3-R SOT-323 43 BST0 INTVCC_1 4 5 6 MMBT3906-AL3-R SOT-323 C8 45 SW0 3 ITH_R0 3 LTC3884EUK L1 44 TG0 R5 OPT SW0 SHT3 VIN1 8 SW0 SHT3 TG0/PWM0 SCL VOUT0+ C11 3.3nF 2 OFF B SYNC U1 E3 VSENSE0+ 10 C10 150pF EXTVCC PGND JP1 WP1 ON 1 C 40 SYNC RUN0 D 2 3 R13 2k SYNC lA _A CIN4 22uF 1210 10 R12 2k CIN3 22uF 1210 10 R11 2k VDD33 R10 10K VDD25 R9 2k INTVCC 39 VIN R8 10K CIN2 22uF 1210 5 6 7 1 OPT R7 10K APPROVED 12/17/15 9 VDD33_1 R6 10K DATE PROD TG0 SHT3 4 C6 DESCRIPTION Q1 BSG0811ND C5 VIN- 2 VIN1 C3 2.2uF GND REV - VIN IIN+ D + C32 270uF 16V VIN1 VDD25_1 1.0uF C7 ECO 2.2uF 9 C1 R1 0.002 2010 VIN 3 VIN+ 4 E1 VDD33_1 E13 R24 VDD33_1 PGOOD1 R31 OPT R32 VDD33_1 PGOOD0 OPT R29 10K OPT R30 10K E14 VDD33_1 R34 10K R35 OPT R36 OPT R37 OPT R38 OPT FAULT0 FAULT1 R33 10K PGOOD0 PGOOD1 E9 CUSTOMER NOTICE EXTVCC EXTVCC OPTION FOR FOUR-PHASE CONFIGURATION CONNECTION E38 A GND R39 ITH0 R40 ITH1 VSENSE0+ 0 R43 RUN1 VSENSE00 R46 FAULT1 PGOOD0 0 l_ THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 2010 4 POLYPHASE SYNCHRONOUS BUCK CONVERTER WITH POWER SYSTEM MANAGEMENT 3 2 N/A SCALE = NONE 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 SIZE 2010 R48 0 ITH_R1 0 5 2010 R47 0 TECHNOLOGY `\ PGOOD1 0 R156 ITH_R0 2010 R44 0 VSENSE1- 0 R45 FAULT0 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. VOUT1 R41 0 VSENSE1+ 0 R42 RUN0 VOUT0 APPROVALS DATE: IC NO. LTC3884EUK DEMO CIRCUIT 2283A Thursday, December 17, 2015 1 SHEET 1 REV. 2 OF 4 A 5 4 VIN 3 2 1 VIN2 VDD33_2 C36 VIN2 VDD25_2 1.0uF VIN VIN2 C23 2.2uF EXTVCC TG2 SHT3 R149 R109 0 0 INTVCC_2 C29 C24 3 0805 D SW2 SHT3 SYNC SCL SCL 12 SDA 13 ALERTB 14 SHARE_CLK 27 SDA ALERTB 17 RUN1 18 WP2 46 47 IIN- 28 BOOST0 SDA BG0/EN0 ALERTB ISENSE0+ 9 RUN0 ISENSE0- RUN1 VSENSE0+ WP VSENSE0- TG1/PWM1 ITH_R1 SW1 ITH1 TSNS0 BG1/EN1 TSNS1 24 ASEL1 VSENSE1+ VOUT0_CFG VSENSE1- BG2 SHT3 VSENSE1+ 2 FREQ_CFG PHASE_CFG FAULT0 35 TG3 34 SW3 36 BST3 37 SW3 SHT3 1 3 CIN16 22uF 1210 CIN13 22uF 1210 5 6 7 BG3 C21 220nF 4 R140 0 C46 0.1uF INTVCC_2 D4 VIN2 8 SW3 SHT3 FAULT1 CIN15 22uF 1210 CIN14 22uF 1210 CMDSH-3-TR 31 15 VOUT1 0.25uH 744301025 R143 715 1% R117 0 COUT12 100uF 6.3V 1210 COUT11 100uF 6.3V 1210 COUT13 + 470uF 2.5V 7343 COUT14 + 470uF 2.5V 7343 5 6 7 1 16 B 2 Q8 8 BSG0811ND VSENSE1- OPT BG3 SHT3 VDD33_2 R141 OPT R152 OPT VDD33_2 OPT C 32 0 R82 R148 0 L4 2 R132 R119 OPT COUT15 + 470uF 2.5V 7343 VIN2 Q7 BSG0811ND 48 33 49 41 R59 COUT9 + 470uF 2.5V 7343 R134 OPT VSENSE1- VSENSE1+ R154 OPT COUT10 100uF 6.3V 1210 BSG0811ND VOUT1_CFG PGOOD0 23 ISENSE1- PGOOD1 22 ASEL0 GND 21 R108 30.1k 1% R153 3.57k 1% 8 TG3 SHT3 ITH0 PGND 19 VDD25_2 8 1 COUT16 100uF 6.3V 1210 Q6 C33 220nF ITH_R0 ISENSE1+ 20 B 7 SHARE_CLK 9 Q28 C18 10nF R135 715 1% 2 BOOST1 Q11 MMBT3906-AL3-R SOT-323 5 6 7 1 4 30 10 MMBT3906-AL3-R SOT-323 CMDSH-3-TR 42 BG2 9 47pF 29 C38 10nF 43 BST2 744301025 9 25 38 SCL INTVCC_2 D3 R53 0 4 6 ITH_R1 3 SW0 C37 0.1uF 3 5 2 ITH1 LTC3884EUK 44 TG2 45 SW2 OPT OFF C20 TG0/PWM0 VOUT1 0.25uH 10 C19 26 U2 3 JP2 WP2 ON 1 C SYNC L3 SW2 SHT3 10 SHARE_CLK 11 VIN2 8 4 SYNC EXTVCC 3 40 10 R115 OPT D CIN10 22uF 1210 VOUT1 SHT 1,3 10 R111 OPT CIN11 22uF 1210 2 IIN+ R110 OPT VDD33 R83 OPT VDD25 R51 OPT INTVCC R57 OPT CIN9 22uF 1210 5 6 7 1 OPT 39 4.7uF VIN R131 10K CIN12 22uF 1210 C45 4.7uF VDD33_2 Q5 BSG0811ND 9 R60 1 1% 2.2uF 4 C47 R129 0.002 2010 R49 OPT R112 OPT R50 OPT R151 OPT R56 OPT R118 OPT R84 OPT FAULT1 PGOOD1 CUSTOMER NOTICE E37 GND 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 `\ l_ TITLE: SCHEMATIC POLYPHASE SYNCHRONOUS BUCK 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 N/A SCALE = NONE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only DATE: IC NO. LTC3884EUK DEMO CIRCUIT 2283A Thursday, December 17, 2015 1 SHEET 2 REV. 2 OF 4 A 5 4 3 2 1 OPTIONAL MOSFETs OPTIONAL 5.5V BIAS VIN2 D U4 LTC3630EMSE SW3 12 5 BG3 11 R106 80.6k 1% 1 2 3 BG2 VPRG1 FBO VPRG2 ISET SS R105 118K 1% 9 C48 OPT OPT C44 100uF 10V 1210 C30 100uF 10V 1210 7 6 R107 20K C49 OFF Q18 OPT 4 3 Q16 OPT 4 1 2 3 BG1 2 RUN SUMIDA CDRH105 C43 220pF 10 47nF 1 2 3 Q14 OPT 4 1 2 3 BG0 5 5 5 Q13 OPT 4 VFB 5 ON SW D R87 1 GND JP4 BIAS VIN C31 10uF 16V 1210 4 TG3 SW2 0 3 GND SW1 CIN23 OPT 1210 EXTVCC +5.5V L5 68uH 17 TG2 CIN24 OPT 1210 GND Q27 OPT 8 SW0 CIN21 OPT 1210 4 1 2 3 TG1 CIN22 OPT 1210 R116 1 4 Q17 OPT 5 CIN19 OPT 1210 1 2 3 4 CIN20 OPT 1210 5 Q15 OPT 1 2 3 CIN17 OPT 1210 1 2 3 TG0 CIN18 OPT 1210 5 Q12 OPT 5 VIN GND VIN2 14 VIN1 16 VIN1 C C VOUT0 SHT 1 VOUT0 DYNAMIC LOAD TEST CIRCUIT, FOR DEMO BOARD ONLY R88 J10 0 1 VOUT0 2010 + COUT17 + COUT18 OPT OPT 7343 7343 COUT19 100uF 6.3V 1210 COUT20 100uF 6.3V 1210 COUT27 100uF 6.3V 1210 COUT21 2 1.0uF EXT PULSE E7 VOUT1 SHT 1,2 VOUT1 SUD50N04-8M8P U5 LTC6992IS6-1 2 R93 154k B R96 20K 3 MOD OUT GND V+ SET DIV JP5 PULSE 6 5 4 R91 0 2 1 +5.5V R94 1M U6 LT1803IS5 C39 5 R95 20K 100nF 2 70Hz, 3% Duty Cycle R97 681K 1% 3 C41 1.0uF V+ VOUT R92 1 Q24 3 INT C40 150pF -IN Q23 C34 100uF 6.3V 1210 4 VOUT0 A R85 OPT 2512 + COUT22 OPT 7343 + COUT23 OPT 7343 COUT24 100uF 6.3V 1210 COUT25 100uF 6.3V 1210 COUT28 100uF 6.3V 1210 B J12 1 C42 1.0uF 82.5 1% IOUT STEP 2 R102 0.01 2512 R104 1k 1% E8 GND VOUT1 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. R86 OPT 2512 TECHNOLOGY `\ l_ THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 4 3 2 POLYPHASE SYNCHRONOUS BUCK CONVERTER WITH POWER SYSTEM MANAGEMENT N/A SCALE = NONE 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 SIZE BLEEDER LOADS 5 COUT26 2 1.0uF SUD50N04-8M8P R98 10K R101 OPT 2512 R103 5K VOUT1 EXT R100 R99 301 1% 1 2010 C35 100uF 6.3V 1210 1 V+IN 3.3 1% J11 R90 0 R89 2 DATE: IC NO. LTC3884EUK DEMO CIRCUIT 2283A Thursday, January 07, 2016 1 SHEET 3 REV. 2 OF 4 A 5 4 3 2 1 VDD33_1 D13 1 2 ALL PARTS ON THIS PAGE ARE FOR DEMO BOARD ONLY, NOT NEEDED IN CUSTOMER DESIGN E27 VDD33_2 D12 1 2 SDA SHARE_CLK SCL SYNC R138 OPT FAULT1 E22 J16 D FAULT1 ALERTB E23 4 AUX3V4 3 2 1 AUX3V4 SCL GND SDA E24 E25 E26 D10 OPT SYNC ALERTB SDA SCL R133 OPT D E28 FAULT0 SHARE_CLK R137 0 FAULT0 TO DC2086A D11 OPT AUXP 3V3 E36 J14 3 4 A1 WP A2 SCL VSS R128 4.99K 8 AUXVCC SDA RUN1 7 EEWP 6 EESCL 5 EESDA DEMO HEADER (F) J13 R150 4.99K R122 OPT R136 OPT RUN1 FAULTB CTRL ALERTB SDA SHARE_CLK SCL RESETB AUXP UNUSED UNUSED GND GND 12V 12V SW2 RUN0 SW1 RUN1 ON 5 R69 10 2 VIN R142 OPT 1206 C R70 10 5 OFF 2 OFF DEMO HEADER (M) J15 R139 OPT ON 4 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 6 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 4 1 FAULTB CTRL ALERTB SDA SHARE_CLK SCL RESETB AUXP UNUSED UNUSED GND GND 12V 12V 100nF U7 VCC R120 OPT R145 OPT R127 0 E35 C50 A0 RUN0 R146 OPT C 2 RUN0 R147 0 TO DC1613A 1 E34 3V3 1 2 3 4 5 6 7 8 9 10 11 12 6 3 AUXP SDA GND SCL LGKPWR ALERTB GPIO_1 OUTEN_0 OUTEN_1 GND AUXSCL AUXSDA R121 OPT C27 10nF C28 10nF R126 OPT 24LC024-I/ST E21 GND 3V3 3V3 3V3 3V3 B 2 B 3V3 3 2 3 3 GREEN R124 10K Q21 R144 15.8k GREEN ALERTB RED R155 15.8k 1 2N7002A 1 PGOOD1 D8 GREEN Q22 FAULT1 GREEN Q26 2N7002A R81 127 2 FAULT0 PGOOD0 D9 D7 2 R123 10K DMP3130L-7 Q20 D6 1 VIN 1 VIN 1 GPIO1 GPIO0 D5 ALERTB 3 2 R80 200 VDD33_2 PGOOD0 1 2N7002A Q25 1 PGOOD1 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 2N7002A 2 Q30 DMP3130L-7 3 3 3V3 VDD33_1 R125 200 2 Q29 DMP3130L-7 R130 200 3 3V3 R79 200 TECHNOLOGY `\ l_ TITLE: SCHEMATIC POLYPHASE SYNCHRONOUS BUCK CONVERTER WITH POWER SYSTEM MANAGEMENT SIZE N/A THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 3 SCALE = NONE 2 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only DATE: IC NO. LTC3884EUK DEMO CIRCUIT 2283A Thursday, December 17, 2015 1 SHEET 4 REV. 2 OF 4 A