5 4 3 2 1 D1 U1 LT1934ES6 1 Vin 4.5V to 34V 1N4148WS C1 0.22uF BOOST 5 D 1 E1 RUN 2 4 SHDN C3 2.2uF 6 SHDN FB 3 L1 47uH E2 D R1 C2 634K 10pF + C5 68uF 6.3V POSCAP GND 2 D2 B0540W R2 383K R3 464K 1 C4 10uF SW R4 511K 3 + JP1 VIN Vout 3.3V@250mA 5V@200mA 5V 3.3V JP2 2 GND 3 GND C E4 E3 C D3 U2 LT1934ES6-1 1 Vin 4.5V to 34V BOOST 5 RUN B 2 4 SHDN C8 10uF C9 1.0uF SW 6 FB 3 R7 511K SHDN 150uH E6 R9 C7 634K 10pF + C10 68uF 6.3V POSCAP GND 3 + JP3 VIN Vout 3.3V@60mA 5V@45mA 2 D4 B0540W R11 383K R10 464K B 1 1 E5 1N4148WS C11 0.22uF L2 JP4 5V 3.3V 2 GND 3 GND E7 E8 CONTRACT NO. APPROVALS A DRAWN DATE June Wu 6/10/02 Dave Kim 6/10/02 CHECKED TECHNOLOGY TITLE A LT1934ES6/LT1934ES6-1 Micropower Step-Down Switching Regulators in ThinSOT APPROVED ENGINEER 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 DESIGNER SIZE CAGE CODE DWG NO REV A DEMO CIRCUIT 544A Thursday, December 12, 2002 5 4 3 SCALE: 2 FILENAME: SHEET 1 1 OF 1