5 4 E3 3 3 GND 4 GND GND 26 GND 25 VEE1 24 5 SYNC 6 DELAY 2200pF sense1- sense2- C12 R28 30.9K R30 10 R32 51.1K 2200pF R29 60.4K 1% C13 22pF 7 DCL 8 SENSE1+ C7 1uF BOOST 6 25V TG 5 TS 4 R17 0 11 RSET 12 SENSE2- CS1 .1uF CC1 220pF VC 15 RC1 15K 1% CC2 6800pF 5 Q10 HAT2266H R31 53.6K 1% R26 0 GND B R23 OPT C10 OPT RA2 0.008 RB2 0.008 sense2- CFF1 OPT CUSTOMER NOTICE CONTRACT NO. 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. APPROVALS THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 4 R21 OPT 4 R27 0 RFB1 475K 1% D7 DFLS160 4 4 VOUT GND COUT5 10uF 50V E9 R25 0 E11 5 R18 OPT Q9 HAT2266H GND 18 RUN 17 FB 16 4 R20 OPT U3 LTC4440ES6 C9 4.7uF 25V GBIAS2 21 BGATE2 20 VEE2 19 9 SENSE110 SLOPE 13 SENSE2+ 14 SS 3 INP R19 1K C E8 Q8 HAT2266H OPT Q7 HAT2266H BGATE1 23 GBIAS1 22 29 GND E10 1 VCC 2 GND D6 PD3S160 2 5 SYNC 1 GBIAS GBIAS 28 VCC 27 E7 R16 2 SGate2 U1 LT3782AEFE COUT4 E6 COUT3 + 680uF 10uF 35V 50V SANYO 35CE680AXA GBIAS VCC VOUT [email protected] 1 2 3 sense1- C6 1uF 25V C8 4.7uF 25V COUT2 10uF 50V RA1 0.008 5 2 C5 0.01uF VOUT E5 RB1 0.008 5 R15 316K 1% 1 SGATE2 2 SGATE1 R22 10 GND R12 0 1 2 3 RUN 1 C3 OPT 4 1 2 3 ON SGate1 A 5 4 R11 0 R8 OPT Q4 HAT2266H 1 2 3 R14 1K D5 PDZ12B C11 D D2 DFLS160 R6 OPT 1 C4 1000pF MMBTA42 SGate2 R24 1Meg 4 Q3 HAT2266H JP2 SYNC R5 OPT U2 LTC4440ES6 L2 10uH PULSE, PB2020.103 RSS1 825K 1% Q5 OFF B TS 4 R3 OPT 4 5 R13 2 C 1K 1 2 5.11K 3 1 Q6 BCX55 2 3 JP1 R2 0 1 2 3 2 R10 VOUT OPT 1 1K BOOST 6 TG 5 Q1 HAT2266H L1 10uH PULSE, PB2020.103 3 D4 VCC Bias 1 LR D3 PDZ20B 2 R9 0 3 INP C2 1uF 25V 1 R7 0 VCC VIN R4 VIN E4 2 GND 1 VCC 2 GND SGate1 2 COUT1 10uF 50V Q2 HAT2266H OPT 1 2 3 D 1 5 CIN2 10uF 50V D1 PD3S160 R1 2 1 2 3 CIN1 10uF 50V C1 1uF 25V CIN5 + 680uF 35V SANYO 35CE680AXA CIN4 10uF 50V CIN3 10uF 50V 5 E2 1 GBIAS VIN 10V-15V 2 1 2 3 E1 VIN 3 3 2 TECHNOLOGY DRAWN: Antonina K CHECKED: TITLE: APPROVED: ENGINEER: VICTOR K. DESIGNER: SIZE A DATE: 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use Only LT3782AEFE High Power, Dual Phase Synchronous Boost Converter DWG NO. REV DC1234B B Wednesday, February 11, 2009 1 SHEET 1 OF 1 A