5 4 3 2 Cooper Bussman SD25-4R7 L1 4.7uH D +VIN +VIN 1.8V - 5V 1 D E1 C1 A SIZE OPT R1 1M + R2 330 C2 3.3uF FAULT 3 R D1 RED 2 LED 1 JP1 FAULT U1 LTC3529EDCB 8 E2 5 E3 VIN GND SW FAULT 2 D2 OPT Powermite SCHOTTKY C 6 VOUT SNSGND VOUT 5V 1 C3 10uF 16V +VIN 2 EXT 1 7 RST GND 3 OFF 9 ON PGND +VIN 4 4 SD 3 4 AUTO RESTART C4 3.3uF 3 ON 2 OFF 1 EXT JP3 RST SD C E4 E6 GND JP4 E7 B B SD E8 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 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 3 CONTRACT NO. APPROVALS DRAWN Antonina Karpova DATE TECHNOLOGY 1/30/07 TITLE CHECKED 1/30/07 SIZE DESIGNER CAGE CODE SCALE: Tuesday, April 14, 2009 2 A LTC3529EDCB 5V, 1.5MHz Synchronous Step-Up DC/DC Converter APPROVED ENGINEER Fran Hoffart 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 FILENAME: DWG NO REV DC1226A SHEET 1 2 1 OF 1