1 2 3 4 5 6 7 8 A A E1 1 D0 White LED Output ( ~+5V ) 2 E2 2 1 C2 1uF 6.3V JP1 R9 100K C1 0.1uF E3 1 GND 3 1 1 C3 1uF 6.3V 2 2 2 1 2 1 D6 LED R6 37.4 1% 1 R5 37.4 1% 1 R4 37.4 1% 1 R3 37.4 1% D5 LED 2 1 2 1 1 R2 37.4 1% D4 LED 1 1 2 2 2 9 6 C2- R1 37.4 1% U1 LTC3202EMS10 2 C6 1uF 6.3V 1 1 R8 1M 2 D3 LED 1 R7 1M FB D2 LED 2 VIN D1 LED 1 4 B 3 C4 4.7uF 6.3V GND D1 5 C5 0.1uF E6 2 2 1 3.0V to 4.5Vin 1 1 0 E5 GND VOUT 3 1 JP2 1 D0 2 2 10 C2+ C1+ 1 B C1- D1 7 8 1 0 E4 C C E7 1 VFB LINEAR TECHNOLOG Y CORPORATION 1630 McCARTHY BLVD. MILPITAS, CA 95035 (408) 432-1900 (408) 434-0507 FAX D D Title High Efficiency White LED Driver NOTES : unless otherwise specifi Size A ed Document Number Rev DEMO DC395A LTC3202EMS10 Date: Tuesday, March 13, 2001 1 2 3 4 5 6 Sheet 7 1 1 of 8