A B C D E 4 4 Vin L1 6.8uH CDRH3D16-6R8NC 1.8V-3.6V C1 2.2uF, 6.3V X5R JP1 1 E1 RUN U1 LTC3427EDC D1 (Opt.) 2 SHDN SW VIN EXPOSED PAD 3 3 3 R2 0 4 SHDNB 2 Vout 1 VOUT R1 1M 1% C2 (Opt.) 0402 C3 6.8uF, 6.3V X5R C4 0.1uF, 6.3V E2 GND 5 R4 604K 1% Gnd E3 2 E4 LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY 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. This Circuit Is Proprietary To Linear Technology And Supplied For Use With Linear Technology Parts. 1 NOTES: UNLESS OTHERWISE SPECIFIED A 3 6 7 GND 2 Gnd 2 3.3V@180mA FB R3 1M 1% 1 B C LINEAR TECHNOLOGY CORPORATION 1630 McCARTHY BLVD. MILPITAS, CA. 95035 408-432-1900 408-434-0507 FAX Title 1 500mA, 1.25MHz Synchronous Boost Converter Size Document Number Date: Thursday, October 27, 2005 Demo Circuit 856A D Sheet Rev LTC3427EDC 1 E of 1