1 2 3 4 7 Size C2 2.2uF 6.3V 3 1 JP2 Circuit 1 Battery Efficiency 2 5 VIN 2 R1 100K 5% BT1 BATTERY 3 GND CTRL E3 A D2 LED (White) FB CTRL 4 E2 D1 LED (White) C1 0.47uF 16V VOUT 2 SW1 On/Off 6 Vin 8 Vout Test 12V - 16V SW JP1 Input 1 3 E1 B 6 L1 22uH LQH32CN220 Vin 2.7V - 5V A 5 D3 LED (White) U1 LT3465ES6 + D4 LED (White) R2 13.3 1% Gnd Gnd L2 22uH LB2012B220M or LQH2M220 SW C C4 2.2uF 6.3V 5 VIN FB 4 CTRL 2 R3 100K 5% C 3 GND CTRL E6 C3 0.47uF 16V VOUT 6 SW2 On/Off E5 1 E4 B U2 LT3465AES6 LINEAR TECHNOLOGY CORPORATION 1630 McCARTHY BLVD. MILPITAS, CA. 95035 PHONE (408) 954-8400 FAX (408) 434-0507 D Title LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY 1 2 3 4 5 D Single Cell White LED Driver Size A Document Number Date: Friday, January 24, 2003 DC637A 6 LT3465ES6/LT3465AES6 Sheet 7 1 Rev 1 of 8