LTM4607EV

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Demonstration circuit DC1601B is a PolyPhase ® power supply featuring the L TM®4607 power module, a complete high efficiency switching mode buck-boost power supply. The DC1601B input voltage range is from 6V to 36V and is capable of delivering high power through paralleled L TM4607 modules. The demo circuit can deliver up to 10A of output current for two paralleled modules (DC1601B-A), 15A for three paralleled modules (DC1601B-B) and up to 20A for four paralleled modules (DC1601B-C). The DC1601B demonstrates that paralleling modules is easy and reliable. The output voltage for the board is 12V . The rated load current per module is 5A in boost mode, however cur- rent derating may be necessary under certain V IN, VOUT, frequency, and thermal conditions. An onboard external clock is provided for synchronization and interleaving of L, L T , L TC, L TM, Linear Technology, PolyPhase and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. phases to minimize input and output ripple. An internal phase-locked loop allows the L TM4607 to be synchro- nized to an external clock within the range of 200kHz to 400kHz. The L TM4607 default switching frequency on the DC1601B is set to 300kHz through the onboard L TC6902 clock generator which interleaves the paralleled phases. The frequency and phase separation set by the L TC6902 are resistor programmable. These features, including the availability of the L TM4607 in a compact thermally enhanced 15mm × 15mm × 2.8mm LGA package make the demonstration circuit ideal for use in high density point of load regulation applications. Design files for this circuit board are available at http://www.linear .com/demo BOARD PHOTO DC1601B-C SHOWN

PERFORMANCE SUMMARY(TA = 25°C) PARAMETER CONDITIONS VALUE Maximum Input Voltage 36V Minimum Input Voltage 6V Output Voltage V OUT Programmed by R22 12V Maximum Continuous Output Current IOUT(MAX) Current Derating May Be Necessary for Certain VIN, VOUT, Frequency and Thermal Conditions. 10A (DC1601B-A) 15A (DC1601B-B) 20A (DC1601B-C) Default Operating Frequency 300kHz External Clock Sync. Frequency Range 200kHz to 400kHz Output Voltage Ripple (Typical) V OUT = 12V 300kHz (20MHz BW) VIN = 9V , IOUT = 10A (DC1601B-A), See Figure 5a VIN = 12V , IOUT = 15A (DC1601B-B), See Figure 5b VIN = 32V , IOUT = 20A (DC1601B-B), See Figure 5c Efficiency V IN = 9V , VOUT = 12V 300kHz 95.7% at IOUT = 10A (DC1601B-A), See Figure 2a 94.8% at IOUT = 15A (DC1601B-B), See Figure 2b 94.8% at IOUT = 20A (DC1601B-C), See Figure 2c Load T ransient V OUT = 12V 300kHz (20MHz BW) VIN = 9V , IOUT = 10A (DC1601B-A), See Figure 4a VIN = 12V , IOUT = 15A (DC1601B-B), See Figure 4b VIN = 32V , IOUT = 20A (DC1601B-B), See Figure 4c

Demonstration circuit DC1601B is easy to set up to evaluate the performance of paralleled L TM4607 modules. Please refer to Figure 1 for proper measurement equipment setup and follow the procedure below: 1. With power off, connect the input power supply, load, and meters as shown in Figure 1. Preset the load to 0A and V IN supply to be 0V . Place jumpers in the following positions for a typical 12VOUT application: JP2 JP1 JP3 MODE RUN START CCM OFF SSO 2. Turn on the power at the input. Increase V IN to 18V (Do not hot-plug the input supply or apply more than the rated maximum voltage of 36V to the board or the modules may be damaged). 3. Set the run pin jumper (JP1) to the ON position. The output voltage should be regulated. The output voltage meter should read 12V ±2% (11.76V to 12.24V). 4. Vary the input voltage from 6V to 36V and adjust the load current from 0A to 10A (for DC1601B-A), 0A to 15A (for DC1601B-B), 0A to 20A (for DC1601B-C). V OUT should remain regulated at 12V ±2% (11.76V to 12.24V). Observe the load regulation, efficiency and other parameters. 5. Set the load current to 0A. Set the RUN pin jumper (JP1) to the OFF position. Turn off input supply before disconnecting the circuit. QUICK START PROCEDURE A V V A LOAD

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Common Required Circuit Components: 1 2 CIN1, CIN6 CAP , ALUM, 100μF , 20%, 50V SUNCON, 50ME100WX+TS 2 4 CIN2, CIN3, CIN7, CIN8 CAP , X5R, 4.7μF , 10%, 50V , 1206 TAIYO YUDEN, UMK316BJ475KL-T 3 4 CO1, CO4, CO9, CO10 CAP , X5R, 22μF , 25V , 20%, 1812 TDK, C4532X5R1E226M 4 4 CO2, CO3, CO11, CO12 CAP , OS-CON, 180μF , 16V , E9 SANYO, 16SEPC180MX+T 5 1 CSS1 CAP , X7R, 0.01μF , 25V , 10%, 0603 AVX, 06033C103KAT4A 6 1 C4 CAP , X5R, 0.1μF , 25V , 10%, 0603 AVX, 06033D104KAT4A 7 2 C3, C6 CAP , COG, 22pF , 25V , 10%, 0603 AVX, 06033A220KAT4A 8 2 L1, L2 IND IRON POWER SMT FIXED, 3.3μH TOKO, FDA1254-3R3M=P3 9 4 RS1 TO RS4 RES, CHIP , 0.015Ω 1/2W , 1%, 1206 VISHAY, WSL1206R0150FEA 10 1 R1 RES, CHIP , 100k, 1/16W , 5%, 0603 VISHAY, CRCW0603100KJNEA 11 4 R10 TO R13 RES, CHIP , 0Ω, 0603 VISHAY, CRCW06030000Z0EA 12 4 R6, R7, R8, R9 RES, CHIP , 100Ω, 1/16W , 1%, 0603 VISHAY, CRCW0603100RFKEA 13 1 U2 IC, L TC6902CMS LINEAR TECHNOLOGY, L TC6902CMS#PBF Common Additional Demo Board Circuit Components: 1 0 C1, C2, C5, C7, C9 TO C17 CAP , 0603

2 CFF1, CP1 TO CP4 (OPT)

3 0 CO7, CO15, CO23, CO31, CIN9, CAP , 1206

4 CIN4, CIN5, CIN13, CIN17 (OPT)

5 0 CIN10, CIN14 (OPT) CAP , ALUM, SIZE 8mm × 12.5mm 6 0 CO28 (OPT) CAP , OS-CON, 180μF , 16V , E9 SANYO, 16SEPC180MX 7 0 RUVLO1, R3, (OPT) RES, CHIP , 0603 8 0 CO19, CO20, CO27 (OPT) CAP , OS-CON, F8 9 0 CO5, CO13, CO21, CO29 (OPT) CAP , D3L 10 1 D1 ZENER DIODE, 4.7V CENTRAL SEMI, CMDZ5230B-7-F 11 1 R2 RES, CHIP , 5.1k, 1/16W , 5%, 0805 VISHAY, CRCW08055K10JNEA 12 1 R23 RES, CHIP , 0, 1206 VISHAY, CRCW12060000Z0EA Common Hardware: 1 1 JP1 2mm SINGLE ROW HEADER, 3-PIN SAMTEC, TMM-103-02-L-S 2 2 JP2, JP3 2mm SINGLE ROW HEADER, 4-PIN SAMTEC, TMM-104-02-L-S 3 3 JP1, JP2, JP3 SHUNT SAMTEC, 2SN-BK-G 4 8 TP1, TP3, TP6, TP8 TO TP12 TESTPOINT , TURRET , 0.095" MILL-MAX, 2501-2-00-80-00-00-07-0 5 8 TP2, TP4, TP5, TP7(X2) STUD, TESTPIN PEM KFH-032-10 6 4 TP2, TP4, TP5, TP7 NUT , BRASS 10-32 ANY #10-32 7 4 TP2, TP4, TP5, TP7 RING, LUG #10 KEYSTONE #10 8 4 TP2, TP4, TP5, TP7 WASHER, TIN PLATED BRASS ANY #10 9 4 STAND OFF STAND-OFF , NYLON 0.50" TALL KEYSTONE, 8833 (SNAP ON)

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components: 1 1 DC1601 (COMMON BOM) 2 1 R4 RES, CHIP , 0Ω, 0603 VISHAY, CRCW06030000Z0EA 3 1 R5 RES, CHIP , 154k, 1/16W , 1%, 0603 VISHAY, CRCW0603154KFKEA 4 1 R22 RES, CHIP , 3.57k, 1/16W , 1%, 0603 VISHAY, CRCW06033K57FKEA 5 2 U1, U3 IC, L TM4607EV#PBF , 15mm × 9mm × 2.3mm LINEAR TECHNOLOGY, L TM4607EV#PBF Additional Demo Board Circuit Components: 1 0 CIN11, CIN12, CIN15, CIN16 (OPT) CAP, 1206 2 0 CO17, CO18, CO25, CO26 (OPT) CAP, 1812 3 0 C8, C10 (OPT) CAP , 0603 4 0 L3, L4 (OPT) IND IRON POWER SMT FIXED, 3.3μH 5 0 R14 TO R21 (OPT) RES, CHIP , 0603 6 0 RS5 TO RS8 (OPT) RES, CHIP , 1206 7 0 U4, U5 (OPT) IC, L TM4607EV#PBF , 15mm × 9mm × 2.3mm LINEAR TECHNOLOGY, L TM4607EV#PBF Demo Board 1601B-B ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components: 1 1 DC1601 (COMMON BOM) 2 2 CIN11, CIN12 CAP , X7R, 4.7μF , 50V , 10%, 1206 MURATA, GRM31CR71H475K 3 2 CO17, CO18 CAP , X5R, 22μF , 16V , 20%, 1812 TDK, C4532X7R1C226M 4 1 C8 CAP , NPO, 22pF , 50V , 5%, 0603 AVX, 06035A220JAT2A 5 1 L3 IND IRON POWER SMT FIXED, 3.3μH TOKO, FDA1254-3R3M=P3 6 1 R5 RES, CHIP , 205k, 1/16W , 1%, 0603 VISHAY, CRCW0603205KFKEA 7 4 R14 TO R17 RES, CHIP , 0Ω, 0603 VISHAY, CRCW06030000Z0EA 8 1 R22 RES, CHIP , 2.37k, 1/16W , 1%, 0603 VISHAY, CRCW06032K37FKEA 9 2 RS5, RS6 RES, CHIP , 0.015Ω 1/2W , 1%, 1206 VISHAY, WSL1206R0150FEA 10 3 U1, U3, U4 I.C., L TM4607EV#PBF , 15mm × 9mm × 2.3mm LINEAR TECHNOLOGY, L TM4607EV#PBF Additional Demo Board Circuit Components: 1 0 CIN15, CIN16 (OPT) CAP , 1206 2 0 CO25, CO26 (OPT) CAP , 1812 3 0 C10 (OPT) CAP , 0603 4 0 L4 (OPT) IND IRON POWER SMT FIXED, 3.3μH 5 0 R4, R18 TO R21 (OPT) RES, CHIP , 0603 6 0 RS7, RS8 (OPT) RES, CHIP , 1206 7 0 U5 (OPT) IC, L TM4607EV#PBF , 15mm × 9mm × 2.3mm LINEAR TECH., L TM4607EV#PBF

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components: 1 1 DC1601 (COMMON BOM) 2 4 CIN11, CIN12, CIN15, CIN16 CAP, X7R, 4.7μF , 10%, 50V , 1206 MURATA, GRM31CR71H475K 3 4 CO17, CO18, CO25, CO26 CAP , X5R, 22μF , 16V , 20%, 1812 TDK, C4532X7R1C226M 4 2 C8, C10 CAP , NPO, 22pF , 50V , 5%, 0603 AVX, 06035A220JAT2A 5 2 L3, L4 IND IRON POWER SMT FIXED, 3.3μH TOKO, FDA1254-3R3M=P3 6 9 R4, R14 TO R21 RES, CHIP , 0Ω, 0603 VISHAY, CRCW06030000Z0EA 7 1 R5 RES, CHIP , 154k, 1/16W , 1%, 0603 VISHAY, CRCW0603154KFKEA 8 1 R22 RES, CHIP , 1.78k, 1/16W , 1%, 0603 VISHAY, CRCW06031K78FKEA 9 4 RS5 TO RS8 RES, CHIP , 0.015Ω 1/2W , 1%, 1206 VISHAY, WSL1206R0150FEA 10 4 U1, U3, U4, U5 IC, L TM4607EV#PBF , 15mm × 9mm × 2.3mm LINEAR TECHNOLOGY, L TM4607EV#PBF PARTS LIST

A A B B A A B B ON OFF DCM CCM BS (BURST/SKIP_CYCLE) OFF SSO (SOFT START ON) LO (LDO ON) 12V MODE RUN START 6V - 36V 50V 5.5V - 7V TOKO FDA1254 16V DC1601B-A * ASSY DC1601B-B DC1601B-C CIN1 - CIN12 CIN15 - CIN16 C10 OPT OPT 4.7uF 4.7uF OPT 4.7uF OPT OPT 22pF OPT 154K 205K 154K L3 L4 OPT 3.3uH 3.3uH OPT OPT 3.3uH OPT 22pF 22pF CO17 - CO18 OPT 22uF 22uF CO25 - CO26 OPT OPT 22uF VOUT 10A MAX 15A MAX 20A MAX 0.015 0.015 R14 - R17 R22 1.78K 2.37K 0.015 OPT3.57K OPT OPTOPT RS5-RS6 RS7-RS8 R18 - R21 OPT OPT U3U1 U5 U4 LTM4607EV LTM4607EV LTM4607EV LTM4607EV LTM4607EV LTM4607EV LTM4607EV LTM4607EV LTM4607EV VFB FCB INTVCC VOUT VIN STNDBY RUN VOUT VSS INTVCC +5V +5V +5V +5V VIN +5V +5V PH0 PH2 PH1 PH3 PH0 VIN RUN VSS VOUT VFB FCB COMP EXTVCC STNDBY

REVISION HISTORY

DESCRIPTION DATE APPROVEDECO REV SAM Y.PRODUCTION1 7-20-11 DESCRIPTION DATE APPROVEDECO REV SAM Y.PRODUCTION1 7-20-11 DESCRIPTION DATE APPROVEDECO REV SAM Y.PRODUCTION1 7-20-11 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 Friday, February 03, 2012 13 HIGH DENSITY POLYPHASE BUCK-BOOST POWER uMODULE HZ SAM Y. N/A LTM4607EV DEMO CIRCUIT 1601B 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 Friday, February 03, 2012 13 HIGH DENSITY POLYPHASE BUCK-BOOST POWER uMODULE HZ SAM Y. N/A LTM4607EV DEMO CIRCUIT 1601B 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 Friday, February 03, 2012 13 HIGH DENSITY POLYPHASE BUCK-BOOST POWER uMODULE HZ SAM Y. N/A LTM4607EV DEMO CIRCUIT 1601B C14 (OPT)C14 (OPT) (OPT) (OPT) CMDZ5230B CMDZ5230B TP8 VO-TP8 VO- TP5GND TP5GND JP1JP1 CIN2 4.7uF 50V CIN2 4.7uF 50V CP1 (OPT) CP1 (OPT) CO7 (OPT) 16V CO7 (OPT) 16V CIN4 (OPT) CIN4 (OPT) L1 3.3uHL1 3.3uH RS1 0.015 RS1 0.015 VINL12 VINK11 VINJ10 VINM10 VINL11 VINL10 VINK12 VINJ11 VINJ12 VINK10 GND C11 GND C10 GND C9 GND C8 GND C7 GND C5 GND C4 GND C3 GND C2 GND C1 GND B4 GND B3 GND B2 GND C6 GND B1 GND A3 GND A2 GND A1 VOUTG2 VOUTG3 VOUTG4 VOUTH1 VOUTH2 VOUTH3 VOUTH4 COMPB7 EXTVCCF6 SSA6 RSENSE G5 GND C12GND D1GND D2GND D3GND D4 GND D9 GND D8 GND D7 GND D6 GND D5 GND D10 VFB B6 SW1J1 SW2J8 VOUTG1 VOUT E2 VOUT E1 VINM11 VINM12 INTVCCF5 PGOODB5 RUNA8 PLLFLTRB8 PLLINB9 FCBA9 STNDBYA10 SGNDA7 GND D11GND D12GND E3GND E4GND E5GND E6GND E7GND E8GND E9GND E10GND E11GND E12 GND A11GND A12 GND B10GND B11GND B12 SENSE+ A4 SENSE- A5 RSENSE G6RSENSE G7RSENSE G8RSENSE G9RSENSE G10RSENSE G11RSENSE G12RSENSE H5RSENSE H6RSENSE H7RSENSE H8RSENSE H9RSENSE H10RSENSE H11RSENSE H12RSENSE J5RSENSE J6RSENSE J7RSENSE K5RSENSE K6RSENSE L5RSENSE L6RSENSE M5RSENSE M6RSENSE F10RSENSE F11RSENSE F12 VOUT F1VOUT F2VOUT F3 VOUTF4 SW1J2 SW1J3 SW1J4 SW1K1 SW1K2 SW1K3 SW1K4 SW1L1 SW1L2 SW1L3 SW1L4 SW1M1 SW1M2 SW1M3 SW1M4 SW2J9 SW2K7 SW2K8 SW2K9 SW2L7 SW2L8 SW2L9 SW2M7 SW2M8 SW2M9 NCF8 NCF9 NCF7 (OPT) (OPT) RUVLO1 (OPT) RUVLO1 (OPT) R8 100R8 100 R6 100R6 100 RS2 0.015 RS2 0.015 CFF1 (OPT) CFF1 (OPT) R9 100R9 100 TP3 VO+TP3 VO+ CO2 180uF 16V CO2 180uF 16V 5.1K 5.1K TP9EXTVCC TP9EXTVCC JP3JP3 CIN5 (OPT) CIN5 (OPT) TP1VIN TP1VIN CO4 22uF 16V CO4 22uF 16V TP12SGND TP12SGND * 1% * 1% TP2VIN+ TP2VIN+ R22 R22 TP10PGOOD TP10PGOOD TP6VIN- TP6VIN- TP11SOFT START TP11SOFT START CO1 22uF 16V CO1 22uF 16V JP2JP2 LTC6902CMS LTC6902CMS V+1 DIV2 PH3 OUT14 OUT25 OUT3 6 OUT4 7 GND 8 MOD 9 SET 10 CIN3 4.7uF 50V CIN3 4.7uF 50V CSS1 10nFCSS1 10nF TP7 GNDTP7 GND C3 22pFC3 22pF TP4 VOUTTP4 VOUT R23 0R23 0 + CIN1 100uF + CIN1 100uF CO5 (OPT) CO5 (OPT) C1 (OPT) 10V C1 (OPT) 10V 100 100 100K 100K C4 0.1uFC4 0.1uF CO3 180uF 16V CO3 180uF 16V

A A B B A A B B 50V TOKO FDA1254 50V 50V 50V 16V TOKO FDA1254 VOUT FCB VOUT VFB COMP RUN VOUT RUN VFB FCB VOUT COMP VIN VINVIN EXTVCC COMP VSS RUN PH1 FCB STNDBY VOUT RUN STNDBY EXTVCC VSS VIN FCB COMP PH2 VOUT VFB VFB 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 Friday, February 03, 2012 23 HIGH DENSITY POLYPHASE BUCK-BOOST POWER uMODULE HZ SAM Y. N/A LTM4607EV DEMO CIRCUIT 1601B 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 Friday, February 03, 2012 23 HIGH DENSITY POLYPHASE BUCK-BOOST POWER uMODULE HZ SAM Y. N/A LTM4607EV DEMO CIRCUIT 1601B 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 Friday, February 03, 2012 23 HIGH DENSITY POLYPHASE BUCK-BOOST POWER uMODULE HZ SAM Y. N/A LTM4607EV DEMO CIRCUIT 1601B CO23 (OPT) 16V CO23 (OPT) 16V R11 0R11 0 C6 22pFC6 22pF C15 (OPT)C15 (OPT) CO9 22uF 16V CO9 22uF 16V R12 0R12 0 CIN13 (OPT) CIN13 (OPT) CO18 *16V CO18 *16V CO13 (OPT) CO13 (OPT) R16 R16 CIN11 *50V CIN11 *50V CO15 (OPT) 16V CO15 (OPT) 16V CIN8 4.7uF CIN8 4.7uF L2 3.3uHL2 3.3uH CO19 (OPT) 16V CO19 (OPT) 16V + CIN6 100uF + CIN6 100uF VINL12 VINK11 VINJ10 VINM10 VINL11 VINL10 VINK12 VINJ11 VINJ12 VINK10 GND C11 GND C10 GND C9 GND C8 GND C7 GND C5 GND C4 GND C3 GND C2 GND C1 GND B4 GND B3 GND B2 GND C6 GND B1 GND A3 GND A2 GND A1 VOUTG2 VOUTG3 VOUTG4 VOUTH1 VOUTH2 VOUTH3 VOUTH4 COMPB7 EXTVCCF6 SSA6 RSENSE G5 GND C12GND D1GND D2GND D3GND D4 GND D9 GND D8 GND D7 GND D6 GND D5 GND D10 VFB B6 SW1J1 SW2J8 VOUTG1 VOUT E2 VOUT E1 VINM11 VINM12 INTVCCF5 PGOODB5 RUNA8 PLLFLTRB8 PLLINB9 FCBA9 STNDBYA10 SGNDA7 GND D11GND D12GND E3GND E4GND E5GND E6GND E7GND E8GND E9GND E10GND E11GND E12 GND A11GND A12 GND B10GND B11GND B12 SENSE+ A4 SENSE- A5 RSENSE G6RSENSE G7RSENSE G8RSENSE G9RSENSE G10RSENSE G11RSENSE G12RSENSE H5RSENSE H6RSENSE H7RSENSE H8RSENSE H9RSENSE H10RSENSE H11RSENSE H12RSENSE J5RSENSE J6RSENSE J7RSENSE K5RSENSE K6RSENSE L5RSENSE L6RSENSE M5RSENSE M6RSENSE F10RSENSE F11RSENSE F12 VOUT F1VOUT F2VOUT F3 VOUTF4 SW1J2 SW1J3 SW1J4 SW1K1 SW1K2 SW1K3 SW1K4 SW1L1 SW1L2 SW1L3 SW1L4 SW1M1 SW1M2 SW1M3 SW1M4 SW2J9 SW2K7 SW2K8 SW2K9 SW2L7 SW2L8 SW2L9 SW2M7 SW2M8 SW2M9 NCF8 NCF9 NCF7 CIN7 4.7uF CIN7 4.7uF C5 (OPT) 10V C5 (OPT) 10V VINL12 VINK11 VINJ10 VINM10 VINL11 VINL10 VINK12 VINJ11 VINJ12 VINK10 GND C11 GND C10 GND C9 GND C8 GND C7 GND C5 GND C4 GND C3 GND C2 GND C1 GND B4 GND B3 GND B2 GND C6 GND B1 GND A3 GND A2 GND A1 VOUTG2 VOUTG3 VOUTG4 VOUTH1 VOUTH2 VOUTH3 VOUTH4 COMPB7 EXTVCCF6 SSA6 RSENSE G5 GND C12GND D1GND D2GND D3GND D4 GND D9 GND D8 GND D7 GND D6 GND D5 GND D10 VFB B6 SW1J1 SW2J8 VOUTG1 VOUT E2 VOUT E1 VINM11 VINM12 INTVCCF5 PGOODB5 RUNA8 PLLFLTRB8 PLLINB9 FCBA9 STNDBYA10 SGNDA7 GND D11GND D12GND E3GND E4GND E5GND E6GND E7GND E8GND E9GND E10GND E11GND E12 GND A11GND A12 GND B10GND B11GND B12 SENSE+ A4 SENSE- A5 RSENSE G6RSENSE G7RSENSE G8RSENSE G9RSENSE G10RSENSE G11RSENSE G12RSENSE H5RSENSE H6RSENSE H7RSENSE H8RSENSE H9RSENSE H10RSENSE H11RSENSE H12RSENSE J5RSENSE J6RSENSE J7RSENSE K5RSENSE K6RSENSE L5RSENSE L6RSENSE M5RSENSE M6RSENSE F10RSENSE F11RSENSE F12 VOUT F1VOUT F2VOUT F3 VOUTF4 SW1J2 SW1J3 SW1J4 SW1K1 SW1K2 SW1K3 SW1K4 SW1L1 SW1L2 SW1L3 SW1L4 SW1M1 SW1M2 SW1M3 SW1M4 SW2J9 SW2K7 SW2K8 SW2K9 SW2L7 SW2L8 SW2L9 SW2M7 SW2M8 SW2M9 NCF8 NCF9 NCF7 CP3 (OPT) CP3 (OPT) R15 R15 RS5 RS5 CO11 180uF 16V CO11 180uF 16V CIN10 (OPT) 50V CIN10 (OPT) 50V CIN9 (OPT) CIN9 (OPT) RS4 0.015 RS4 0.015 RS6 RS6 RS3 0.015 RS3 0.015 CIN12 CIN12 CO10 22uF 16V CO10 22uF 16V C12 (OPT)C12 (OPT) CO12 180uF 16V CO12 180uF 16V C11 (OPT)C11 (OPT) C7 (OPT) 10V C7 (OPT) 10V CO17 *16V CO17 *16V C16 (OPT)C16 (OPT) R14 R14 R10 0R10 0 CP2 (OPT) CP2 (OPT) CO21 (OPT) CO21 (OPT) CO20 (OPT) 16V CO20 (OPT) 16V R17 *R17 * R13 0R13 0

Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However , no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. SCHEMATIC DIAGRAM A A B B A A B B 16V VOUT VOUT VIN FCB COMP VFB RUN COMP STNDBY EXTVCC VSS RUN VOUT PH3 FCB VIN VFB 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 Friday, February 03, 2012 33 HIGH DENSITY POLYPHASE BUCK-BOOST POWER uMODULE HZ SAM Y. N/A LTM4607EV DEMO CIRCUIT 1601B 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 Friday, February 03, 2012 33 HIGH DENSITY POLYPHASE BUCK-BOOST POWER uMODULE HZ SAM Y. N/A LTM4607EV DEMO CIRCUIT 1601B 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 Friday, February 03, 2012 33 HIGH DENSITY POLYPHASE BUCK-BOOST POWER uMODULE HZ SAM Y. N/A LTM4607EV DEMO CIRCUIT 1601B R20 R20 CO29 (OPT) CO29 (OPT) CIN16 CIN16 C17 (OPT)C17 (OPT) R21 R21 CO31 (OPT) 16V CO31 (OPT) 16V RS7 RS7 CO26 *25V CO26 *25V CIN17 (OPT) CIN17 (OPT) C10 C10 RS8 RS8 C13 (OPT)C13 (OPT) CIN15 CIN15 CP4 (OPT) CP4 (OPT) C9 (OPT) 10V C9 (OPT) 10V CIN14 (OPT) CIN14 (OPT) CO27 (OPT) 16V CO27 (OPT) 16V VINL12 VINK11 VINJ10 VINM10 VINL11 VINL10 VINK12 VINJ11 VINJ12 VINK10 GND C11 GND C10 GND C9 GND C8 GND C7 GND C5 GND C4 GND C3 GND C2 GND C1 GND B4 GND B3 GND B2 GND C6 GND B1 GND A3 GND A2 GND A1 VOUTG2 VOUTG3 VOUTG4 VOUTH1 VOUTH2 VOUTH3 VOUTH4 COMPB7 EXTVCCF6 SSA6 RSENSE G5 GND C12GND D1GND D2GND D3GND D4 GND D9 GND D8 GND D7 GND D6 GND D5 GND D10 VFB B6 SW1J1 SW2J8 VOUTG1 VOUT E2 VOUT E1 VINM11 VINM12 INTVCCF5 PGOODB5 RUNA8 PLLFLTRB8 PLLINB9 FCBA9 STNDBYA10 SGNDA7 GND D11GND D12GND E3GND E4GND E5GND E6GND E7GND E8GND E9GND E10GND E11GND E12 GND A11GND A12 GND B10GND B11GND B12 SENSE+ A4 SENSE- A5 RSENSE G6RSENSE G7RSENSE G8RSENSE G9RSENSE G10RSENSE G11RSENSE G12RSENSE H5RSENSE H6RSENSE H7RSENSE H8RSENSE H9RSENSE H10RSENSE H11RSENSE H12RSENSE J5RSENSE J6RSENSE J7RSENSE K5RSENSE K6RSENSE L5RSENSE L6RSENSE M5RSENSE M6RSENSE F10RSENSE F11RSENSE F12 VOUT F1VOUT F2VOUT F3 VOUTF4 SW1J2 SW1J3 SW1J4 SW1K1 SW1K2 SW1K3 SW1K4 SW1L1 SW1L2 SW1L3 SW1L4 SW1M1 SW1M2 SW1M3 SW1M4 SW2J9 SW2K7 SW2K8 SW2K9 SW2L7 SW2L8 SW2L9 SW2M7 SW2M8 SW2M9 NCF8 NCF9 NCF7 R19 R19 CO28 (OPT) 16V CO28 (OPT) 16V R18 R18 CO25 *25V CO25 *25V

Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear .com © LINEAR TECHNOLOGY CORPORA TION 2012 LT 0412 • PRINTED IN USA DEMONSTRATION BOARD IMPORTANT NOTICE Linear Technology Corporation (L TC) 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 L TC 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 Europ ean 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 PARTY 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 L TC fro m 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 co mpliant or agency certified (FCC, UL, CE, etc.). No License is granted under any patent right or other intellectual property whatsoever. L TC assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind. L TC 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 L TC applica- tion engineer . Mailing Address: Linear Technology 1630 McCarthy Blvd. Milpitas, CA 95035 Copyright © 2004, Linear Technology Corporation