5 4 3 2 1 D D E3 FB FB E4 WHITE LED OUTPUT( +5V ) VIN VIN E1 D1 LED D2 LED 2 2 2 2 2 VOUT D3 LED D4 LED C1 1UF D5 LED 1 C2 0.22UF 1 1 1 1 C6 1UF 1 C R1 54.9 R2 54.9 R3 54.9 R4 54.9 R5 54.9 1% 1% 1% 1% 1% C4 1UF U1 CP 2 FILTER 3 CM 4 C3 0.22UF 5 VOUT CP FB VIN FILTER D2 CM D1 GND D0 R6 330K R7 330K R8 330K C5 1UF E5 GND 10 C 9 8 D2 1 JP1 A 2 7 D1 3 B 4 6 D0 5 C 6 E2 GND GND LTC3201 B B LINEAR TECHNOLOGY CORP LTC CONFIDENTIAL-FOR CUSTOMER USE ONLY A A 1630 McCARTHY BLVD. MILPITAS, CA 5 9035 PH. (408) 954-8400 FAX (408) 434-0507 Title 100mA WHITE LED POWER SUPPLY Size Document Number A Date: 5 4 3 DC381A-LTC3201 Friday, March 02, 2001 2 Sheet 1 1 of 1 Rev A