5 4 3 2 1 REVISIONHISTORY ECO REV 2 DESCRIPTION 3V to 5.5V 1 VIN R10 6.3V 33K SD U1 4 2 R5 100 1 [1] D3 [1] 2 3 4 5 0.1uF 100V J5 1 VOUT C3 1uF D2 J6 1 35V GND C [1] C2 [1] 1uF 35V 1 FB 3 D7 R6 R7 R8 1K 35.7K 35.7K C8 C9 [1] + 5.49K 0.15uF 0.15uF B R3 1.24K to 30VOUT CONTRACTNO. APPROVALS DRAWN A D VOUT C7 OPT 35V + J4 D4 D6 SW R9 1uF D1 R4 1 C4 1 [1] JP1 VPROGRAM [1] J7 SHDN LT1930AES5 90VOUT 10 3 B 0V to 4.5V= R2 0.1uF 2.2uH VIN 4.7uF 1 J2 C5 5 C1 RUN GND 10 L1 GND J1 0.1uF 2 C R1 APPROVED 02/03/03 30V to 90V D5 D C6 DAT E PROTO, CHANGE C5, C6 FROM 0603 TO 1 206 NOTES: UNLESS OTHERWISE SPECIFIED, MEI DATE 01/13/03 TITLE CHECKED [1] CMDSH2-3LTC TECHNOLOGY 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 APPROVED SCH, LT1930AES5 AVALANCHE PHOTODIODE BIAS SUPPLY ENGINEER DESIGNER Thursday, February 27, 2003 5 4 3 SIZE CAGECODE DWGNO REV DC634A SCALE: FILENAME: 634A-2.DSN 2 SHEET 2 1 1 OF 1 A