5 4 3 2 1 REVISION HISTORY ECO REV 1 1 DESCRIPTION ADD -B VERSION, PROD DATE APPROVED 01/14/14 VICTOR K. D D VIN Vin C10 10uF 10V 1 L1 1.0uH FDV0630-1R0 IPRG SW 8 RUN GND E2 C9 0.1uF NGATE 5 VOUT Vout E3 C1 100uF 10V C2 100uF 10V C11 OPT C3 OPT 4 C7 47pF C5 OPT C 3 Q1 Si3460DDV GND E4 R3 17.4K 1% 5 6 7 8 R2 34.8K 1% VIN R1 11K 1% RUN/SS RUN/SS C6 1800pF Q3 Si4116DY OPT C4 (opt) 1 2 3 4 R6 OPT B 5V@2A C13 OPT 4 GND VFB D1 B320 7 C R5 OPT 1 1 2 5 6 ITH 3 + C8 470uF Sanyo TPE 2 RUN/SS 2 3V-4.5V 6 U1 [1] VIN R4 5.11 K 1% E1 For Demo Board Test Only B 1 ON [1] 2 OFF 3 J1 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. A 4 IC -A LTC3872ETS8 -B LTC3872-1ETS8 CONTRACT NO. APPROVALS DATE DRAWN Manjihng Xie/ MI TECHNOLOGY TITLE CHECKED APPROVED ENGINEER VICTOR K. 01/16/14 10:16:04 3 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 A SCH, LTC3872ETS8/LTC3872-1ETS8, Tiny, No RSENSE Boost Converter 01/14/14 DESIGNER Antonina K/ MI THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 VERSION SIZE CAGE CODE DWG NO REV Demo Circuit 989B FILENAME: 989B-1.DSN SCALE: 2 SHEET 1 1 1 OF 1