1 2 REVISION HISTORY ECO REV DESCRIPTION DATE PROTO 2 APPROVED 08/15/05 L1 D2 10uH 2 A SUMIDA CDRH3D16/HP-100 1 A PMEG2010EA OPT U1 VIN TP1 1 C1 22uF 6.3V R1 1M 1 1.8V-5.5V GND TP3 1 SHDN 2 6 SW1 SW2 1 5 VIN GND 2 4 SHDN VOUT 3 VOUT 1 C2 22uF 6.3V LTC3531ES6-3.3 C3 1uF 6.3V TP2 RUN GND 1 3 JP1 3.3V [1] TP4 [1] IOUT (MAX) (mA) VIN (Volts) 90 1.8 150 2.5 200 2.9 B B CONTRACT NO. APPROVALS DRAWN MEI DATE 01/11/05 CHECKED TECHNOLOGY TITLE SCH, LTC3531ES6-3.3, BUCK-BOOST REGULATOR APPROVED ENGINEER DESIGNER SIZE CAGE CODE DWG NO 1 SCALE: NONE REV 2 DC877A A Thursday, August 18, 2005 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 FILENAME: 877A-2.DSN 2 SHEET 1 OF 1