LTM4676AEY

LTM4676AEY LINER | Alldatasheet

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Technical content

Description

130A Step-Down μModule Regulator with PMBus Power System Management Demonstration circuit 2106B-B is a high efficiency, high density, µModule regulator with 4.5V to 16V input range. The output voltage is adjustable from 0.5V to 1.8V, and it can supply 130A maximum load current. The demo board has 1× LT M ®4676A and 3× LTM4630 µModule regulators. The LTM4676A is a dual 13A or single 26A step-down regulator with PMBus power system management, and the LTM4630 is a dual 18A or single 36A step-down regulator. Please see LTM4676A and LTM4630 data sheets for more detailed information. DC2106B-B powers up to default settings and produces power based on configuration resistors without the need for any serial bus communication. This allows easy evalu- ation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software L TpowerPlay™ onto your PC and use L, L T , L TC, L TM, Linear Technology, the Linear logo, Dust Networks, Dust and PolyPhase are registered trademarks and L TpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. LT C’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. L TpowerPlay allows the user to reconfigure the part on the fly and store the configuration in EEPROM, and view telemetry of voltage, current, temperature and fault status. GUI Download The software can be downloaded from: http://www.linear.com/ltpowerplay For more details and instructions of L TpowerPlay, please refer to L TpowerPlay GUI for LTM4676A Quick Start Guide. Design files for this circuit board are available at http://www.linear.com/demo/DC2106B-B Figure 1. LTM4676A/DC2106B-B Demo Circuit

(4.5V to 16V) and GND (input return). switch position: SW1: ON; SW2: ON. output voltages. VOUT0 should be 1V ±1%. Quick Start Guide” for details. do not use the long ground lead on the oscilloscope probe. Table 1. LTM4676/LTM4676A Demo Cards for Up to 130A Point-of-Load Regulation

to monitor and change the settings of LTM4676A. Figure 10. L TpowerPlay Main Interface

1. Launch the L TpowerPlay GUI. a. The GUI should automatically identify the DC2106B-B. The system tree on the left hand side should look like this: b. A green message box shows for a few seconds in the lower left hand corner, confirming that LTM4676A is communicating: c. In the Toolbar, click the “R” (RAM to PC) icon to read the RAM from the LTM4676A. This reads the configuration from the RAM of LTM4676A and loads it into the GUI. d. If you want to change the output voltage to a different value, like 1.5V. In the Config tab, type in 1.5 in the VOUT_COMMAND box, like this: Then, click the “W” (PC to RAM) icon to write these register values to the LTM4676A. After finishing this step, you will see the output voltage will change to 1.5V. If the write is successful, you will see the following message: e. You can save the changes into the NVM. In the tool bar, click “RAM to NVM” button, as following f. Save the demo board configuration to a (*.proj) file. Click the Save icon and save the file. Name it whatever you want.

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components 1 18 CIN1, CIN2, CIN4, CIN5, CIN6, CIN7, CIN8, CIN9, CIN10, CIN11, CIN12, CIN13 ,CIN14, CIN15, CIN16, CIN17, CIN18, CIN19 CAP, X5R, 10µF, 35V, 10%,1210 NIC NMC1210X5R106K35TRPLPF 2 1 CIN3 CAP, 150µF, 35V, ALUMINUM ELECTR SUN ELECT, 35CE150AX 3 21 COUT1, COUT2, COUT3, COUT4, COUT6, COUT9, COUT10, COUT12, COUT13, COUT15, COUT16, COUT19, COUT20, COUT23, COUT24, COUT27, COUT28, COUT31, COUT32, COUT35, COUT36 CAP, X5R, 100µF, 6.3V, 20% 1210 MURATA, GRM32ER60J107M20L 4 10 COUT5, COUT7, COUT18, COUT22, COUT26, COUT30, COUT34, COUT38, COUT8, COUT11 CAP, 330µF, 6.3V, POSCAP, D4 SANYO, 6TPF330M9L 5 1 C5 CAP, X7R, 2.2nF, 16V, 10%, 0603 AVX, 0603YC222KAT2A 6 4 C7, C8, C33, C34 CAP, X7R, 10nF, 16V, 10%, 0603 AVX, 0603YC103KAT2A 7 3 C11, C18, C22 CAP, X5R, 2.2µF, 16V, 10%, 0603 TDK, C1608X5R1C225K 8 3 C12, C19, C23 CAP, X7R, 1µF, 16V, 10%, 0603 AVX, 0603YC105KAT2A 9 2 C31, C28 CAP, X7R, 1µF, 25V, 10%, 1206 AVX, 12063C105KAT2A 10 1 C25 CAP, X7R, 0.22µF, 25V, 10%, 0805 AVX, 08053D224KAT2A 11 1 C26 CAP, X7R, 0.1µF, 25V, 10%, 1206 AVX, 12063C104KAT2A 12 1 C29 CAP, X5R, 1µF, 25V, 10%, 0805 AVX, 08053D105KAT2A 13 1 C27 CAP, X7R, 150pF, 25V, 10%, 0603 AVX, 06033C151 KAT2A 14 1 C30 CAP, X5R, 4.7µF, 10V, 10%, 0603 AVX, 0603ZD475KAT2A 15 2 D1, D2 LED GREEN S-GW TYPE SMD ROHM SML-010FTT86 16 1 D3 LED RED S-TYPE GULL WING SMD ROHM SML-010VTT 86 17 1 D10 DIODE, UL TRA LOW SCHOTTKY RECTIEIER NXP SEMI PMEG2005AEL, 315 18 3 Q1, Q3, Q4 MOSFET N-CH 60V 115MA SOT-23 FAIRCHILD 2N7002K 19 1 Q2 MOSFET P-CH 20V 0.58A SOT-23 VISHAY TP0101K-T1-E3 20 2 Q5, Q6 MOSFET SPEED SRS 30V 30A LFPAK RENESAS RJK0305DPB 21 1 Q19 P-CHANNEL 30-V MOSFET DIODE IN, DMP3130L-7 22 1 R25 RES, CHIP, 22.6k, 1%, 0603 VISHAY CRCW060322K6FKEA 23 24 R2, R4, R8, R23, R31, R32, R34, R37, R38, R50, R61, R66, R42, R44, R46, R47, R41, R64, R51, R55, R109, R75, R80, R114 RES, CHIP, 0, 1%, 0603 VISHAY CRCW06030000Z0EA 24 4 R43, R49, R52, R56, RES, CHIP, 0, 1%, 2010 VISHAY CRCW20100000Z0EA 25 9 R10, R11, R12, R13, R16, R17, R21, R77, R94 RES, CHIP, 10k, 1%, 0603 VISHAY CRCW060310K0FKEA 26 1 R9 RES, CHIP, 7.15k, 1%, 0603 VISHAY CRCW06037K15FKEA 27 4 R22, R26, R70, R73 RES, CHIP, 10, 1%, 0603 NIC NRC06F10R0TRF 28 1 R102 RES, CHIP, 732, 1%, 0603 VISHAY CRCW0603732RFKEA 29 3 R33, R60, R65 RES, CHIP, 121k, 1%, 0603 VISHAY CRCW0603121KFKEA 30 4 R40, R63, R 68, R58 RES, CHIP, 80.6k, 1%, 0603 VISHA Y CRCW060380K6FKEA 31 1 R35 RES, CHIP, 60.4k, 1%, 0603 VISHAY CRCW060360K4FKEA 32 1 R36 RES, CHIP, 8.25k, 1%, 0603 VISHAY CRCW06038K25FKEA 33 1 R19 RES, CHIP, 7.15k, 1%, 0603 VISHAY CRCW06037K15FKEA 34 4 R45, R84, R85, R98 RES, CHIP, 200, 1%, 0603 VISHAY CRCW0603200RFKEA 35 3 R54, R89, R92 RES, CHIP, 20k, 1%, 0603 VISHAY CRCW060320K0FKEA

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER 36 2 R76, R115 RES, CHIP, 4.99k, 1%, 0603 PANASONIC ERJ-3EKF4991V 37 1 R86 RES, CHIP, 127, 1%, 0603 VISHAY CRCW0603127RFKEA 38 1 R87 RES, CHIP, 2, 1%, 0603 VISHAY CRCW06032R00FKEA 39 1 R88 RES, CHIP, 1M, 1%, 0603 NIC NRC06F1004TRF 40 1 R90 RES, CHIP, 154k, 1%, 0603 VISHAY CRCW0603154KFKEA 41 1 R91 RES, CHIP, 3.3, 1%, 0603 VISHAY CRCW06033R30FKEA 42 1 R93 RES, CHIP, 681k, 1%, 0603 VISHAY CRCW0603681KFKEA 43 1 R95 RES, CHIP, 82.5, 1%, 0603 VISHAY CRCW060382R5FKEA 44 1 R112 RES, CHIP, 15.8k, 1%, 0603 VISHAY CRCW060315K8FKEA 45 2 R99, R100 RES, CHIP, 0.01, 1%, 2010 VISHAY WSL2010R0100FEA 46 1 R101 TRIMMING POTENTIOMETER, 5k BOURNS, 3386P-1-502LF 47 1 R103 RES, CHIP, 100k, 1%, 0603 VISHAY CRCW0603100KFKEA 48 1 U1 IC, LTM4676AEY LINEAR TECH LTM4676AEY 49 3 U2, U3, U4 IC, LTM4630EV LINEAR TECH LTM4630EV 50 1 U5 IC, LT1801CMS8, MSOP LINEAR TECH LT1801CMS8 51 1 U6 IC, 24LC025T-E/OT SOT-23 6-LEAD MICROCHIP, 24LC025T-E/OT 52 1 U7 IC, LTC6992-1, S6-TSOT23 LINEAR TECH LTC6992CS6-1 53 1 U8 IC, LT1803IS5, S5-TSOT23 LINEAR TECH LT1803IS5 54 1 U9 IC, LT1129CS8-5, S8 LINEAR TECH LT1129CS8-5 Additional Demo Board Circuit Components 1 0 C1, C2, C3, C4, C6, C13, COUT14, COUT17, COUT21, COUT25, COUT29, COUT33, COUT37, C9, C10, C16, C17, C20, C21, CAP, OPTIONAL 2 0 R 1, R3, R5, R6, R7, R14, R15, R18, R20, R24, R27 TO R30, R39, R48, R59, R62, R67, R69, R72, R78, R79, R96, R97, R104 TO R108, R39, R41, R62, R67, R69 RES, OPTIONAL Hardware: for Demo Board Only 1 24 E1 TO E24 TESTPOINT, TURRET, 0.062" MILL-MAX, 2308-2-00-80-00-00-07-0 2 2 JP1, JP2 0.079 SINGLE ROW HEADER, 3 PIN SAMTEC, TMM-103-02-L-S 3 2 XJP1, XJP2 SHUNT SAMTEC, 2SN-BK-G 4 2 J1, J3 JACK, BANANA KEYSTONE 575-4 5 4 J2, J4, J5, J6 STUD, TESTPIN PEM KFH-032-10 6 8 J1, J2, J3, J4, J5, J6 (x2) NUT, BRASS 10-32 ANY #10-32 7 4 J1, J2, J3, J4, J5, J6 RING, LUG #10 KEYSTONE, 8205, #10 8 4 J1, J2, J3, J4, J5, J6 WASHER, TIN PLATED BRASS ANY #10, #10EXT BZ TN 9 2 SW1, SW2 CONN, SUB MINIATURE SLIDE SWITCHES C&K, JS202011CQN 10 1 J7 CONN HEADER 12POS 2MM STR DL PCB FCI 98414-G 06-12ULF 11 2 J10, J11 CONN, BNC, 5PINS CONNEX, 112404 12 1 J14 HEADER, 4 PINS, SHROUDED HIROSE, DF3A-4P-2DSA 13 1 J12 CONN RECEPT 2MM DUAL R/A 14POS (F) SULLINS, NPPN072FJFN-RC 14 1 J13 HEADER 14POS 2MM R/A GOLD (M) MOLEX, 87760-1416 15 4 (STAND-OFF) STAND-OFF, NYLON 0.50" TALL KEYSTONE, 8833(SNAP ON) parts List

NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE 0603. ALL CAPACITORS ARE 0603. 35V 4.5V - 16V 6.3V 6TPF330M9L OPT 6.3V 1210 1210 1210 0805 0805 1210 1210 1210 1210 1210 1210 1210

0.035 VIA

µMODULE REGULATOR WITH POWER SYSTEM MANAGEMENT 1210 ON OFF RUN0 ON OFF RUN1 1210 1210 1V/130A 6TPF330M9L 6.3V * WHEN VIN < 5.75V, SHORT INTVCC TO VIN WITH R7=0 0hm. D4 D4 6.3V1210 VOSNS0+ VOSNS0- VDD33 SYNC SHARE_CLK ALERTB SCL SDA GPIO0B GPIO1B ASEL FREQ_CFG VOUT0_CFG VTRIM0_CFG VOUT1_CFG VTRIM1_CFG RUN1 VOSNS0- VDD25 RUN0 INTVCC VOSNS1 VIN VOUT0 VOUT1 VIN SYNC SHARE_CLK ALERTB SCL SDA GPIO0B GPIO1B COMP0 COMP1 RUN0 RUN1 VDD33 SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 16 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676EY / LTM4630EV DEMO CIRCUIT 2106B-B SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 16 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676EY / LTM4630EV DEMO CIRCUIT 2106B-B SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 16 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676EY / LTM4630EV DEMO CIRCUIT 2106B-B

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV JIAN L.PRODUCTION1 4-22-13__ DESCRIPTION DATEAPPROVEDECO REV JIAN L.PRODUCTION1 4-22-13__ DESCRIPTION DATEAPPROVEDECO REV JIAN L.PRODUCTION1 4-22-13__ VIN COUT1 100uF CIN6 10uF VOUT0 +COUT7 330uF R16 10K +COUT11 330uF CIN5 10uF R8 0 LTM4676AEY VOUT0A1 VOUT0A2 VOUT0A3 VOUT0D1 ISNS0b-E1 ISNS0b+F1 ISNS1b-G1 ISNS1b+H1 VOUT1J1 VOUT1J2 VOUT1J3 VOUT1K1 VOUT0B1 VOUT0B2 VOUT0B3 VOUT0D2 ISNS0a-E2 ISNS0a+F2 ISNS1a-G2 ISNS1a+H2 VOUT1K2 VOUT1K3 VOUT1L1 VOUT1L2 VOUT0C1 VOUT0C2 VOUT0C3 VOUT0D3 GND A4 GND A6 GND A7 GND A8 VOUT1L3 VOUT1M1 VOUT1M2 VOUT1M3 GND A9 GND A10 GND B4 GND B5 ASEL G4 FSWPHCFG H4 GND B6 GND B7 GND B8 GND B9 GPIO0 E4 GPIO1 F4 SNUB0A5 GND C4 TSNS0bC5 TSNS0aD5 ALERT E5 RUN0 F5 VOUT0CFG G5 VTRIM0CFG H5 TSNS1aJ5 TSNS1bK5 GND C6 SNUB1M5 GND C7 GND C8 GND C9 SDA D6 SCL E6 RUN1 F6 VOUT1CFG G6 VTRIM1CFG H6 VDD25 J6 WP K6 GND D4 GND E3 GND F3 GND F10 GND G3 GND G10 SYNC E7 GND M9 GND M10 SHARE_CLK H7 VDD33 J7 GND G11 GND G12 GND L8GND L7 GND L9 GND H3 COMP0bD8 COMP0aE8 SGNDF7 SGNDF8 COMP1aH8 COMP1bJ8 GND H10 GNDJ4 GND M8 VOSNS0+D9 VOSNS0-E9 INTVCC F9 INTVCC G9 VOSNS1H9 VORB1J9 GND J10 GND L4 GND L5 GND K4 SW0B10 DNC E11 VORB0+D10 VORB0-E10 GND L6 GND K7 GND K8 GND K9 DNC C10 SW1L10 GND M4 VIN0B12 VIN0B11 VIN0A12 VIN0A11 DNC K10 SVINF12 GND M6 DNC H11 VIN1H12 VIN1J11 VIN1J12 VIN1K11 VIN0E12 VIN0D12 VIN0D11 VIN0C12 VIN0C11 SVINF11 GND M7 VIN1K12 VIN1L11 VIN1L12 VIN1M11 VIN1M12 SGNDG7 SGNDG8 GND D7 R6 OPT GND0_SNS R26 OPT R32 COUT13 100uF R7 OPT OPT VIN CIN7 10uF GND 10nF VDD25 COUT10 100uF R22 COUT4 100uF R13 10K R31 0 COUT14 OPT 2.2nF OPT + COUT8 330uF R21 10K R29 OPT CIN1 10uF GND1_SNS R28 OPT R15 OPT VDD33 COUT12 100uF SW2 OPT R18 OPT GND R23 OPT R10 10K +COUT5 330uF R17 10K R20 OPT COUT3 100uF VOUT0_SNS COUT9 100uF COUT2 100uF GND OPT R25 22.6K INTVCC 10nF + CIN3 150uF R14 OPT OPT VOUT1_SNS CIN2 10uF R12 10K R19 7.15K R11 10K CIN4 10uF R27 OPT OPT SW1 J1 VOUT1 R30 OPT COUT6 100uF R24 OPT GND

1210 6.3V1210 1210 1210 6.3V1210 1210 OPTIONAL JUMPER FOR SINGLE OUTPUT CONFIGURATION µMODULE REGULATOR WITH POWER SYSTEM MANAGEMENT COMP RUN COMP CLKOUT_U1 CLKOUT_U2 VFB VFB RUN INTVCC_U2 INTVCC_U2 EXTVCC INTVCC_U2 VIN VOUT0 VOUT0 INTVCC_U2 INTVCC_U2 INTVCC_U2 VOUT0 VOUT1 +5V EXTVCC SYNC CLKOUT_U1 CLKOUT_U2 +5V COMP0 COMP GPIO0B COMP COMP VFB VFB COMP0 COMP1 RUN0RUN1 GPIO0B GPIO1B RUN RUN0 RUN CLKOUT_U1 TRACK TRACK SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 26 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 26 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 26 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B C11 2.2uF 10V R58 80.6K R39 (OPT) R59 OPT R37 R36 8.25k R106 OPT C12 1uF 10V C10 (OPT) R34 R45 200 R43 0 2010 P11 R52 0 2010 R51 + COUT22 330uF LT1801CMS8 OUTA1 -IN A2 +IN A3 V-4 5 +IN B 5 6 -IN B 6

7 OUT B 7

60.4k C13 OPT 2N7002A CIN10 10uF R42 0 COUT15 100uF COUT21 OPT R50 0 R48 OPT R109 R41 COUT16 100uF + COUT18 330uF R55 R49 0 2010 R33 121K R105 OPT P10 R40 80.6K COUT20 100uF R56 0 2010 R47 0 (OPT) COUT17 OPT LTM4630EV VOUT1A1 VOUT1A2 VOUT1A3 VOUT1A4 VOUT1A5 VOUT1B1 VOUT1B2 VOUT1B3 VOUT1B4 VOUT1B5 VOUT1C1 VOUT1C2 VOUT1C3 VOUT1C4 VFB1 D5 SW1 G2 PGOOD1 G9 COMP1 E6 RUN1 F5 TRACK1 E5 VOUTS1 C5 VOUT2 A8 VOUT2 A9 VOUT2 A10 VOUT2 A11 VOUT2 A12 VOUT2 B8 VOUT2 B9 VOUT2 B10 VOUT2 B11 VOUT2 B12 VOUT2 C9 VOUT2 C10 VOUT2 C11 VOUT2 C12 VFB2 D7 SW2 G11 PGOOD2 G8 COMP2 E7 RUN2 F9 TRACK2 D8 VOUTS2 C8 VINM2 VINM3 VINM4 VINM5 VINM6 VINM7 VINM8 VINM9 VINM10 VINM11 VINL2 VINL3 VINL4 VINL5 VINL6 VINL7 VINL8 VINL9 VINL10 VINL11 VINK2 VINK3 VINK4 VINK9 VINK10 VINK11 VINJ2 VINJ3 VINJ4 VINJ9 VINJ10 VINJ11 GNDA6 GNDA7 GNDB6 GNDB7 GNDD1 GNDD2 GNDD3 GNDD4 GNDD9 GNDD10 GNDD11 GNDD12 GNDE1 GND E2 GND E3 GND E4 GND E10 GND E11 GND E12 GND F1 GND F2 GND F3 GND F10 GND F11 GND F12 GND G1 GND G3 GND G10 GND G12 GND H1 GND H2 GND H3 GND H4 GND H5 GND H6 GND H7 GND H9 GND H10 GND H11 GND H12 GND M12GND M1GND L12 GND J1 GND J5 GND J8 GND J12 GND K1 GND K5 GND K6 GND K7 GND K8 GND K12 GND L1 SGNDC7 SGNDD6 SGNDF6 SGNDF7 SGNDG6 SGNDG7 FSETC6 PHASMDG4 DIFFP E8 DIFFN E9 CLKOUTG5 MODE-PLLINF4 TEMPJ6 INTVCCH8 EXTVCCJ7 DIFFOUT F8 R46 R104 OPT CIN11 10uF R54 20K CIN9 10uF R44 0

1210 6.3V1210 1210 1210 6.3V1210 1210 1210 1210 1210 1210 µMODULE REGULATOR WITH POWER SYSTEM MANAGEMENT COMP RUN COMP CLKOUT_U3 CLKOUT_U4 VFB VFB RUN VOUT0 VOUT0 INTVCC_U4 INTVCC_U4 EXTVCC INTVCC_U4 VIN RUN COMP VFB CLKOUT_U3 CLKOUT_U4 COMP VFB RUN TRACK TRACK SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 46 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 46 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 46 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B + COUT38 330uF C22 2.2uF 10V COUT33 OPT R68 80.6K CIN16 10uF + COUT34 330uF R69 (OPT) CIN18 10uF C20 (OPT) R67 (OPT) COUT32 100uF COUT36 100uF C21 (OPT) CIN17 10uF P18 C23 1uF 10V R66 E10 CLKOUTR65 121K 1% COUT31 100uF P16 COUT35 100uF CIN19 10uF LTM4630EV VOUT1A1 VOUT1A2 VOUT1A3 VOUT1A4 VOUT1A5 VOUT1B1 VOUT1B2 VOUT1B3 VOUT1B4 VOUT1B5 VOUT1C1 VOUT1C2 VOUT1C3 VOUT1C4 VFB1 D5 SW1 G2 PGOOD1 G9 COMP1 E6 RUN1 F5 TRACK1 E5 VOUTS1 C5 VOUT2 A8 VOUT2 A9 VOUT2 A10 VOUT2 A11 VOUT2 A12 VOUT2 B8 VOUT2 B9 VOUT2 B10 VOUT2 B11 VOUT2 B12 VOUT2 C9 VOUT2 C10 VOUT2 C11 VOUT2 C12 VFB2 D7 SW2 G11 PGOOD2 G8 COMP2 E7 RUN2 F9 TRACK2 D8 VOUTS2 C8 VINM2 VINM3 VINM4 VINM5 VINM6 VINM7 VINM8 VINM9 VINM10 VINM11 VINL2 VINL3 VINL4 VINL5 VINL6 VINL7 VINL8 VINL9 VINL10 VINL11 VINK2 VINK3 VINK4 VINK9 VINK10 VINK11 VINJ2 VINJ3 VINJ4 VINJ9 VINJ10 VINJ11 GNDA6 GNDA7 GNDB6 GNDB7 GNDD1 GNDD2 GNDD3 GNDD4 GNDD9 GNDD10 GNDD11 GNDD12 GNDE1 GND E2 GND E3 GND E4 GND E10 GND E11 GND E12 GND F1 GND F2 GND F3 GND F10 GND F11 GND F12 GND G1 GND G3 GND G10 GND G12 GND H1 GND H2 GND H3 GND H4 GND H5 GND H6 GND H7 GND H9 GND H10 GND H11 GND H12 GND M12GND M1GND L12 GND J1 GND J5 GND J8 GND J12 GND K1 GND K5 GND K6 GND K7 GND K8 GND K12 GND L1 SGNDC7 SGNDD6 SGNDF6 SGNDF7 SGNDG6 SGNDG7 FSETC6 PHASMDG4 DIFFP E8 DIFFN E9 CLKOUTG5 MODE-PLLINF4 TEMPJ6 INTVCCH8 EXTVCCJ7 DIFFOUT F8 R108 OPT P19 P17 COUT37 OPT

1210 6.3V1210 1210 1210 6.3V1210 1210 1210 1210 1210 1210 µMODULE REGULATOR WITH POWER SYSTEM MANAGEMENT COMP RUN COMP CLKOUT_U2 CLKOUT_U3 VFB RUN VFB VOUT0 VOUT0 INTVCC_U3 INTVCC_U3 EXTVCC INTVCC_U3 VIN RUN COMP VFB CLKOUT_U2 CLKOUT_U3 COMP VFB RUN TRACK TRACK SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 36 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 36 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 36 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B COUT23 100uF CIN15 10uF COUT27 100uF CIN12 10uF COUT24 100uF R107 OPT COUT28 100uF + COUT30 330uF R61 CIN13 10uF C18 2.2uF 10V C17 (OPT) P13 R64 COUT29 OPT P15 R63 80.6K + COUT26 330uF R60 121K 1% COUT25 OPT CIN14 10uF C16 (OPT) P12 LTM4630EV VOUT1A1 VOUT1A2 VOUT1A3 VOUT1A4 VOUT1A5 VOUT1B1 VOUT1B2 VOUT1B3 VOUT1B4 VOUT1B5 VOUT1C1 VOUT1C2 VOUT1C3 VOUT1C4 VFB1 D5 SW1 G2 PGOOD1 G9 COMP1 E6 RUN1 F5 TRACK1 E5 VOUTS1 C5 VOUT2 A8 VOUT2 A9 VOUT2 A10 VOUT2 A11 VOUT2 A12 VOUT2 B8 VOUT2 B9 VOUT2 B10 VOUT2 B11 VOUT2 B12 VOUT2 C9 VOUT2 C10 VOUT2 C11 VOUT2 C12 VFB2 D7 SW2 G11 PGOOD2 G8 COMP2 E7 RUN2 F9 TRACK2 D8 VOUTS2 C8 VINM2 VINM3 VINM4 VINM5 VINM6 VINM7 VINM8 VINM9 VINM10 VINM11 VINL2 VINL3 VINL4 VINL5 VINL6 VINL7 VINL8 VINL9 VINL10 VINL11 VINK2 VINK3 VINK4 VINK9 VINK10 VINK11 VINJ2 VINJ3 VINJ4 VINJ9 VINJ10 VINJ11 GNDA6 GNDA7 GNDB6 GNDB7 GNDD1 GNDD2 GNDD3 GNDD4 GNDD9 GNDD10 GNDD11 GNDD12 GNDE1 GND E2 GND E3 GND E4 GND E10 GND E11 GND E12 GND F1 GND F2 GND F3 GND F10 GND F11 GND F12 GND G1 GND G3 GND G10 GND G12 GND H1 GND H2 GND H3 GND H4 GND H5 GND H6 GND H7 GND H9 GND H10 GND H11 GND H12 GND M12GND M1GND L12 GND J1 GND J5 GND J8 GND J12 GND K1 GND K5 GND K6 GND K7 GND K8 GND K12 GND L1 SGNDC7 SGNDD6 SGNDF6 SGNDF7 SGNDG6 SGNDG7 FSETC6 PHASMDG4 DIFFP E8 DIFFN E9 CLKOUTG5 MODE-PLLINF4 TEMPJ6 INTVCCH8 EXTVCCJ7 DIFFOUT F8 R62 (OPT) C19 1uF 10V P14

ALL PARTS ON THIS PAGE ARE FOR DEMO ONLY, NOT NEEDED IN CUSTOMER DESIGN µMODULE REGULATOR WITH POWER SYSTEM MANAGEMENT GPIO0 GPIO1 ALERTB J1, MALE, CONN HEADER 14POS 2MM R/A GOLD, Molex Connector Corp. 87760-1416 J2, FEMALE, CONN RECEPT 2MM DUAL R/A 14POS, Sullins Conn. NPPN072FJFN-RC TO DC1613A PSM STACKING CONNECTORS: OPTIONAL CIRCUIT FOR PROGRAMMING WITHOUT VIN 1206 TO DC2086A AUXVCC EEWP EESDA EESCL AUX3V4 3V3 3V3 3V3 3V3 VIN 3V3 VDD33 VIN 3V3 GPIO0B GPIO1B ALERTB VDD33 ALERTB SDA SCL RUN0 RUN1 GPIO1B GPIO0B SYNC SHARE_CLK VDD33 SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 56 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 56 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B SIZE DATE: IC NO. REV. SHEET OF TITLE: APPROVALS PCB DES. APP ENG. TECHNOLOGY Fax: (408)434-0507 Milpitas, CA 95035 Phone: (408)432-1900 1630 McCarthy Blvd. LTC Confidential-For Customer Use Only 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. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SCHEMATIC SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. SCALE = NONE www.linear.com Thursday, June 04, 2015 56 HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN HZ JIAN L. B LTM4676AEY / LTM4630EV DEMO CIRCUIT 2106B-B E12 ALERTB R74 OPT 24LC025-I/ST A01 A12 A23 VSS4 SDA 5 SCL 6 WP 7 VCC 8 R72 OPT J12 DEMO HEADER (F) FAULTB 1 CTRL 2 ALERTB 3 SDA 4 SHARE_CLK 5 SCL 6 RESETB 7 AUXP 8 UNUSED 9 UNUSED 10 GND 11 GND 12 12V 13 12V 14 C34 10nF R77 10K D2 GREEN J14 AUX3V4 4 SCL 3 GND 2 1SDA AUXP 1 SDA 2 GND 3 SCL 4 LGKPWR 5 ALERTB 6 GPIO_1 7 OUTEN_0 8 OUTEN_1 9 GND 10 AUXSCL 11 AUXSDA 12 J13 DEMO HEADER (M) FAULTB1 CTRL2 ALERTB3 SDA4 SHARE_CLK5 SCL6 RESETB7 AUXP8 UNUSED9 UNUSED10 GND11 GND12 12V13 12V14 E11 GPIO1B E17 SGND E25 AUXP E15 SHARE_CLK R86 127 R85 200 R70 2N7002A R80 0 R78 OPT R83 OPT R111 OPT R81 OPT R113 OPT R75 R71 OPT C33 10nF E14 SCL D3 RED E21 RUN1 R73 OPT E13 SDA R114 0 E16 SYNC 2N7002A R115 4.99K E22 SGND R112 15.8k C32 100nF TP0101K 2 3 OPT E18 GPIO0B GREEN R79 OPT R76 4.99K R84 200 R110 OPT E19 RUN0 Q19 DMP3130L-7 R82 OPT

Information furnished by Linear Technology Corporation is believed to be accurate and reliable. tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. Figure 7. Circuit Schematic TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

DEMO MANUAL DC2106B-B Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear .com  LINEAR TECHNOLOGY CORPORATION 2015 LT 0715 • PRINTED IN USA DEMONSTRATION BOARD IMPORTANT NOTICE Linear Technology Corporation (LT C) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONL Y and is not provided by LT C for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations. If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER P ARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT , SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. The user assumes all responsibility and liability for proper and safe handling of the goods. Further , the user releases LT C from all claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). No License is granted under any patent right or other intellectual property whatsoever. LT C assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind. LT C currently services a variety of customers for products around the world, and therefore this transaction is not exclusive. Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and observe good laboratory practice standards. Common sense is encouraged. This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LT C applica- tion engineer . Mailing Address: Linear Technology 1630 McCarthy Blvd. Milpitas, CA 95035 Copyright © 2004, Linear Technology Corporation