5 D 4 3 2 1 REVISION HISTORY This circuit is proprietary to Linear Technology and supplied for use with Linear Technology parts. Customer Notice: Linear Technology has made a best effort to design a circuit that meets customer-supplied specifications; however, it remains the customers 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 Applications Engineering for assistance. ECO REV DESCRIPTION 1 DATE 2 APPROVED 07/30/04 PROTO CHANGE PIN OUT. REVERSED. 09/23/05 D U1 C1 0.1uF RTB1 12.4K 1% 165K 1% GND MASTER RAMP C3 1 ON R1 215K 1% R2 C RAMP 2 RTA1 VCC 0.1uF 3 RAMPBUF 4 TRACK 4.22K 1% E8 E2 FB 6 FEEDBACK1 E3 GND 2.9V-5.5V LTC2927IDDB 8 VCC SD0 7 SD01 C E4 5 VCC VCC E1 U2 LTC2927IDDB C2 8 VCC 0.1uF RAMP 2 1 ON B RTA2 7.87K 1% 4 TRACK GND 12.4K 1% 3 RAMPBUF FEEDBACK2 B E5 SD0 7 SD02 E6 GND 5 RTB2 FB 6 E7 CONTRACT NO. APPROVALS DRAWN MEI CHECKED A DATE 07/30/04 TECHNOLOGY TITLE SCH, LTC2927IDDB, SINGLE POWER SUPPLY TRACKING DESIGNER Friday, October 14, 2005 5 4 3 A CONTROLLER APPROVED ENGINEER 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 SIZE CAGE CODE DWG NO FILENAME: 817A-2.DSN SCALE: 2 REV DC817A 2 SHEET 1 1 OF 1