5 4 3 2 1 L1 15uH IHCL4040DZ-5A 2 4 1 D 3 D C8 2.2uF 1210 100V R11 OPT R6 169K (450kHz) 20 RT NC 11 C4 47uF 10V 1210 C5 1uF 10V 0603 C10 OPT E4 R4 100K 1% 2 3 GND C R2 316K 1% 15 7 13 E5 NC C7 1uF PG NC E6 NC SS 1 C3 47uF 10V 1210 C6 4.7pF VOUT 5V / 1A * PG 19 SWEN NC GND 10 FB 17 8 NC GND R10 1M FB 21 6 NC GND 5 E2 SWEN 16 12 NC GND C2 2.2uF 100V 1210 14 C1 10uF 63V 63CE10BS + BIAS VIN NC 18 9 E1 4 C VIN 3V - 60V * E3 R1 1M 1% R9 0 SW U1 LT8494EFE D1 MBRA2H100T3G B B * THE MAX LOAD CURRENT IS REDUCED WHEN THE INPUT VOLTAGE IS LESS THAN 12V. PLEASE SEE DEMO MANUAL FOR DETAILS. A NOTES: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE IN OHMS, 0603. ALL CAPACITORS ARE IN MICROFARADS, 0603. CUSTOMER NOTICE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; TECHNOLOGY HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED TITLE: SCHEMATIC CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. SIZE 4 A SEPIC CONVERTER WITH LOW IQ THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only 3 IC NO. N/A DATE: REV. LT8494EFE DEMO CIRCUIT 2242A Tuesday, May 05, 2015 2 1 SHEET 1 1 OF 1