5 4 3 2 1 REVISION HISTORY ECO REV __ D APPROVED DATE PRODUCTION GEORGE Q. 8-18-13 VIN D 10V - 30V D3 SMAJ18A E1 R1 1M 1% U1 LT8302ES8E 3 22uF 50V C2 10uF 50V 1210 1 R2 200K 1% SW GND E2 R3 100 1206 6 PDS1040L 6 7 5 3 E3 C5 100uF 6.3V 1210 9 10 C6 100uF 6.3V 1210 C7 100uF 6.3V 1210 VOUT+ 5V / 2.2A D2 CMHZ5232B VOUT- R4 150K 1% E4 C GND RREF 2 T1 750311564 5 EN/UVLO RFB 4 D1 C4 220pF 0805 D4 CMMSH1-100 VIN + C1 C DESCRIPTION 3 7 INTVcc TC 8 R6 10K C8 9 GND C3 1uF 25V R5 113K 1% 4.7nF 250V 1812 B B NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS AND CAPACITORS ARE 0603. CUSTOMER NOTICE APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. 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 TECHNOLOGY JW GEORGE Q. TITLE: SCHEMATIC A MICROPOWER NO-OPTO ISOLATED FLYBACK CONVERTER SIZE IC NO. N/A SCALE = NONE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only LT8302ES8E DEMO CIRCUIT 2014A Monday, September 30, 2013 DATE: 2 SHEET 1 1 REV. 3 OF 1