DEMO MANUAL DC1989A-A s Diagram dc1989aaf 10 5 4 3 2 1 REVISION HISTORYREVISION HISTORYREVISION HISTORY ECOECOECO REVREVREV DESCRIPTIONDESCRIPTIONDESCRIPTION APPROVEDAPPROVEDAPPROVED DATEDATEDATE 222 PROUCTIONPROUCTIONPROUCTION JIAN L.JIAN L.JIAN L. 12-10-1212-10-1212-10-12 COMP0 D D VOUT0 C1C1 OPTOPT COUT6COUT6 COUT7COUT7 COUT1COUT1 COUT2COUT2 COUT3COUT3 COUT4COUT4 COUT5COUT5 ++ ++ 100uF100uF 100uF100uF 100uF100uF OPTOPT OPTOPT 330uF330uF 330uF330uF 12101210 12101210 1210 1210 1210 6.3V 6.3V R2R2 R3R3 VOSNS0+ R1R1 00 OPTOPT P1P1 0805 C2C2 0.035 VIA OPTOPT OPTOPT P2P2 TESTPOINTS E2E2 INTVCCINTVCC E3E3 VINVIN VIN J1J1 VINVIN A11 * VINH0 VIN A12 4.5V - 16V VINH0 R5R5 OPTOPT CIN3CIN3 CIN4CIN4 CIN5CIN5 CIN6CIN6 CIN7CIN7 B11 F9 CIN2CIN2 CIN1CIN1 ++ VINH0 INTVCC 150uF150uF 10uF10uF 10uF10uF 10uF10uF 10uF10uF B12 G9 J2J2 10uF10uF 10uF10uF VINH0 INTVCC 35V 1210 1210 1210 1210 C11 12101210 12101210 VINH0 C12 GNDGND VINH0 D11 VINH0 D12 VINH0 E12 E4E4 VINH0 E5E5 GNDGND R4R4 00 F11 J7 VDD33VDD33 VINL VDD33 F12 VINL C P3P3 C R7R7 B10 R6R6 R8R8 R9R9 R10R10 R11R11 R12R12 10K10K SW0 10K10K 10K10K 10K10K 10K10K 10K10K 10K10K R13R13 A5 E7 SYNC SNUB0 SYNC SYNC OPTOPT H7 SHARE CLK 0805 SHARE CLK SHARE CLK E2 ISNS0a- E1 E5 ALERTB ISNS0b- ALERT ALERTB E6 SCL SCL SCL F2 ISNS0a+ F1 D6 SDA COMP0 ISNS0b+ SDA SDA U1U1 E4 GPIO0B GPIO0 GPIO0B C5 TSNS0b R120R120 00 D5 F4 C3C3 C4C4 TSNS0a GPIO1 LTM4676EYLTM4676EY 220pF220pF 3.3nF3.3nF K6 SW1SW1 WP E8 COMP0a RUN0 F5 RUN0 R16R16 R14R14 R17R17 OPTOPT R15R15 RUN0 D8 1010 3.4K3.4K 10K10K ON COMP0b F6 P4P4 RUN1 D10 5 2 E6E6 VORB0+ VOUT0 SNSVOUT0 SNS P5P5 E10 J6 VORB0- VDD25 OFF C5C5 R18R18 D9 10nF10nF VOSNS0+ 00 VOSNS0+ C6C6 OPTOPT VOSNS0- R19R19 787787 E9 G4 VOSNS0- ASEL RUN0 J3J3 VOUT0 R20R20 22.6K22.6K VOUT0VOUT0 A1 H4 VOUT0 FSWPHCFG 1V / 50A A2 VOUT0 A3 R21R21 (OPT)(OPT) VOUT0 ++ COUT8COUT8 COUT9COUT9 COUT10COUT10 COUT11COUT11 B1 G5 B VOUT0 VOUT0CFG B 330uF330uF 100uF100uF OPTOPT OPTOPT B2 R22R22 (OPT)(OPT) VOUT0 6.3V 1210 1210 1210 B3 H5 J4J4 VOUT0 VTRIM0CFG C1 VOUT0 C2 GNDGND VOUT0 R23R23 (OPT)(OPT) C3 G6 VOUT0 VOUT1CFG D1 VOUT0 R24R24 (OPT)(OPT) D2 H6 VOUT0 VTRIM1CFG D3 R25R25 00 VOUT0 E7E7 VDD25VDD25 E8E8 GND0 SNSGND0 SNS R26R26 00 NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE 0603. ALL CAPACITORS ARE 0603. WHEN VIN < 5.75V, SHORT INTVCC TO VIN WITH R5,R34. * A A 1630 McCarthy Blvd.1630 McCarthy Blvd.1630 McCarthy Blvd. CUSTOMER NOTICECUSTOMER NOTICECUSTOMER NOTICE Milpitas, CA 95035Milpitas, CA 95035Milpitas, CA 95035 APPROVALSAPPROVALSAPPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN ALINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN ALINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A www.linear.comwww.linear.comwww.linear.com Phone: (408)432-1900Phone: (408)432-1900Phone: (408)432-1900 CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS Fax: (408)434-0507Fax: (408)434-0507Fax: (408)434-0507 TECHNOLOGYTECHNOLOGYTECHNOLOGY HOWEVER, IT REMAINS THE CUSTOMER S RESPONSIBILITY TOHOWEVER, IT REMAINS THE CUSTOMER S RESPONSIBILITY TOHOWEVER, IT REMAINS THE CUSTOMER S RESPONSIBILITY TO PCB DES.PCB DES.PCB DES. HZHZHZ LTC Confidential-For Customer Use OnlyLTC Confidential-For Customer Use OnlyLTC Confidential-For Customer Use Only VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUALVERIFY PROPER AND RELIABLE OPERATION IN THE ACTUALVERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL TITLE:TITLE:TITLE: SCHEMATICSCHEMATICSCHEMATIC APPLICATION. COMPONENT SUBSTITUTION AND PRINTEDAPPLICATION. COMPONENT SUBSTITUTION AND PRINTEDAPPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG.APP ENG.APP ENG. JIAN L.JIAN L.JIAN L. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUITCIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUITCIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWNHIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWNHIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN PERFORMANCE OR RELIABILITY. CONTACT LINEARPERFORMANCE OR RELIABILITY. CONTACT LINEARPERFORMANCE OR RELIABILITY. CONTACT LINEAR Module REGULATOR WITH DIGITAL POWER MANAGEMENT TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. SIZESIZESIZE IC NO.IC NO.IC NO. REV.REV.REV. LTM4676EYLTM4676EYLTM4676EY BBB 222 DEMO CIRCUIT 1989A-ADEMO CIRCUIT 1989A-ADEMO CIRCUIT 1989A-A THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY ANDTHIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY ANDTHIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONESCALE = NONESCALE = NONE DATE:DATE:DATE: Tuesday, May 28, 2013Tuesday, May 28, 2013Tuesday, May 28, 2013 SHEETSHEETSHEET 161616OFOFOF 5 4 3 2 1 A4 GND A6 H12 GND VINH1 A7 J11 GND VINH1 A8 J12 GND VINH1 A9 K11 GND VINH1 A10 K12 GND VINH1 B4 L11 GND VINH1 B5 L12 GND VINH1 B6 M11 GND VINH1 B7 M12 GND VINH1 B8 GND B9 GND C4 GND C6 GND C7 L10 GND SW1 C8 GND C9 M5 GND SNUB1 D4 GND D7 GND E3 G2 GND ISNS1a- F3 G1 GND ISNS1b- F10 GND G3 GND G10 H2 GND ISNS1a+ G11 H1 GND ISNS1b+ G12 GND H3 GND H10 K5 GND TSNS1b J4 GND J10 J5 GND TSNS1a K4 GND K7 GND K8 H8 GND COMP1a K9 GND L4 J8 GND COMP1b L5 GND L6 J9 GND VORB1 L7 GND L8 GND L9 H9 GND VOSNS1 M4 GND M6 GND M7 GND M8 GND M9 GND M10 J1 GND VOUT1 J2 VOUT1 J3 VOUT1 K1 VOUT1 K2 VOUT1 G7 K3 SGND VOUT1 G8 L1 SGND VOUT1 F7 L2 SGND VOUT1 F8 L3 SGND VOUT1 M1 VOUT1 M2 VOUT1 C10 M3 DNC VOUT1 E11 DNC H11 DNC K10 DNC 6 4 3 1 chematicDEMO MANUAL DC1989A-A s Diagram dc1989aaf 11 5 4 3 2 1 COMP1 D D VOUT1 J5J5 C7C7 C8C8 VOUT1VOUT1 OPT OPTOPT COUT12COUT12 COUT13COUT13 COUT14COUT14 COUT15COUT15 COUT16COUT16 COUT17COUT17 COUT18COUT18 ++ ++ R27R27 100uF100uF OPTOPT OPTOPT 330uF330uF 330uF330uF 100uF100uF 100uF100uF R28R28 OPT 1210 1210 1210 6.3V 6.3V 12101210 12101210 OPTOPT R30R30 R31R31 R29R29 00 OPTOPT E9E9 P6P6 0805 VOSNS1 0.035 VIA VOUT1 SNSVOUT1 SNS OPTOPT TESTPOINTS P7P7 C9C9 OPTOPT J6J6 VIN R33R33 OPTOPT GNDGND A11 VINH0 VIN A12 R34R34 OPTOPT VINH0 CIN8CIN8 CIN9CIN9 CIN10CIN10 CIN11CIN11 B11 F9 E10E10 VINH0 INTVCC 10uF10uF 10uF10uF 10uF10uF 10uF10uF B12 G9 GND1 SNSGND1 SNS VINH0 INTVCC 1210 1210 1210 1210 C11 VINH0 C12 VINH0 D11 VINH0 D12 VINH0 E12 VINH0 R32R32 00 F11 J7 VINL VDD33 F12 VINL P8P8 C C B10 R35R35 R36R36 SW0 10K10K 10K10K R37R37 A5 E7 SYNC SNUB0 SYNC SYNC 0805 H7 SHARE CLK OPTOPT SHARE CLK SHARE CLK E2 ISNS0a- E1 E5 ALERTB ISNS0b- ALERT ALERTB E6 SCL SCL SCL F2 ISNS0a+ F1 D6 SDA COMP0 ISNS0b+ SDA SDA U2U2 E4 GPIO0B GPIO0 GPIO0B C5 TSNS0b D5 F4 GPIO1B C10C10 TSNS0a GPIO1 GPIO1B LTM4676EYLTM4676EY OPTOPT K6 WP E8 COMP0a F5 R38R38 OPTOPT RUN0 RUN0 R39R39 D8 COMP0b 10K10K F6 RUN1 P9P9 RUN1 D10 VORB0+ P10P10 P11P11 E10 J6 VORB0- VDD25 D9 VOSNS0+ VOSNS0+ C11C11 SW2SW2 OPTOPT RUN1 R40R40 1.65k1.65k R41R41 E9 G4 VOSNS0- VOSNS0- ASEL ON 1010 VOUT0 5 2 R42R42 1.65K1.65K A1 H4 VOUT0 FSWPHCFG A2 OFF VOUT0 A3 C12C12 VOUT0 R43R43 (OPT)(OPT) COUT20COUT20 ++ COUT19COUT19 COUT21COUT21 COUT22COUT22 B1 G5 10nF10nF VOUT0 VOUT0CFG 100uF100uF B 330uF330uF OPTOPT OPTOPT B2 B R44R44 (OPT)(OPT) 1210 VOUT0 6.3V 1210 1210 B3 H5 VOUT0 VTRIM0CFG C1 VOUT0 C2 R45R45 (OPT)(OPT) VOUT0 C3 G6 VOUT0 VOUT1CFG D1 R46R46 VOUT0 (OPT)(OPT) D2 H6 RUN1 VOUT0 VTRIM1CFG D3 VOUT0 OPTIONAL JUMPER FOR SINGLE OUTPUT CONFIGURATION R47R47 00 GPIO0B GPIO1B R48R48 00 RUN1 RUN0 VOUT0 VOUT1 R49R49 00 20102010 R50R50 00 COMP0 COMP1 R51R51 00 20102010 R52R52 OPTOPT A A A0 EEPROM VCC 1630 McCarthy Blvd.1630 McCarthy Blvd.1630 McCarthy Blvd. R53R53 00 20102010 CUSTOMER NOTICECUSTOMER NOTICECUSTOMER NOTICE Milpitas, CA 95035Milpitas, CA 95035Milpitas, CA 95035 APPROVALSAPPROVALSAPPROVALS R55R55 OPTOPT LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN ALINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN ALINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A Phone: (408)432-1900Phone: (408)432-1900Phone: (408)432-1900 www.linear.comwww.linear.comwww.linear.com A1 EEPROM VCC CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS R54R54 00 20102010 Fax: (408)434-0507Fax: (408)434-0507Fax: (408)434-0507 TECHNOLOGYTECHNOLOGYTECHNOLOGY HOWEVER, IT REMAINS THE CUSTOMER S RESPONSIBILITY TOHOWEVER, IT REMAINS THE CUSTOMER S RESPONSIBILITY TOHOWEVER, IT REMAINS THE CUSTOMER S RESPONSIBILITY TO PCB DES.PCB DES.PCB DES. HZHZHZ LTC Confidential-For Customer Use OnlyLTC Confidential-For Customer Use OnlyLTC Confidential-For Customer Use Only VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUALVERIFY PROPER AND RELIABLE OPERATION IN THE ACTUALVERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL R56R56 00 APP ENG.APP ENG.APP ENG. JIAN L.JIAN L.JIAN L. TITLE:TITLE:TITLE: SCHEMATICSCHEMATICSCHEMATIC VOSNS0+ APPLICATION. COMPONENT SUBSTITUTION AND PRINTEDAPPLICATION. COMPONENT SUBSTITUTION AND PRINTEDAPPLICATION. COMPONENT SUBSTITUTION AND PRINTED VOSNS1 CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUITCIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUITCIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWNHIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWNHIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN PERFORMANCE OR RELIABILITY. CONTACT LINEARPERFORMANCE OR RELIABILITY. CONTACT LINEARPERFORMANCE OR RELIABILITY. CONTACT LINEAR R119R119 00 Module REGULATOR WITH DIGITAL POWER MANAGEMENT TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. VOSNS0- SIZESIZESIZE IC NO.IC NO.IC NO. REV.REV.REV. LTM4676EYLTM4676EYLTM4676EY BBB 222 DEMO CIRCUIT 1989A-ADEMO CIRCUIT 1989A-ADEMO CIRCUIT 1989A-A THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY ANDTHIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY ANDTHIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONESCALE = NONESCALE = NONE DATE:DATE:DATE: Tuesday, May 28, 2013Tuesday, May 28, 2013Tuesday, May 28, 2013 SHEETSHEETSHEET 262626OFOFOF 5 4 3 2 1 A4 GND A6 H12 GND VINH1 A7 J11 GND VINH1 A8 J12 GND VINH1 A9 K11 GND VINH1 A10 K12 GND VINH1 B4 L11 GND VINH1 B5 L12 GND VINH1 B6 M11 GND VINH1 B7 M12 GND VINH1 B8 GND B9 GND C4 GND C6 GND C7 L10 GND SW1 C8 GND C9 M5 GND SNUB1 D4 GND D7 GND E3 G2 GND ISNS1a- F3 G1 GND ISNS1b- F10 GND G3 GND G10 H2 GND ISNS1a+ G11 H1 GND ISNS1b+ G12 GND H3 GND H10 K5 GND TSNS1b J4 GND J10 J5 GND TSNS1a K4 GND K7 GND K8 H8 GND COMP1a K9 GND L4 J8 GND COMP1b L5 GND L6 J9 GND VORB1 L7 GND L8 GND L9 H9 GND VOSNS1 M4 GND M6 GND M7 GND M8 GND M9 GND M10 J1 GND VOUT1 J2 VOUT1 J3 VOUT1 K1 VOUT1 K2 VOUT1 G7 K3 SGND VOUT1 G8 L1 SGND VOUT1 F7 L2 SGND VOUT1 F8 L3 SGND VOUT1 M1 VOUT1 M2 VOUT1 C10 M3 DNC VOUT1 E11 DNC H11 DNC K10 DNC 6 4 3 1 chematic