5 4 VIN BATTERY L1 JP2 22uH 3 E1 JP1 3 Vin 2.7V - 5V 3 2 2 D1 Vout Test CMDSH-3 E3 EFFICIENCY SIZE 2 1 LED1 SW1 1 1 D D LED2 ON/OFF 6 Vin B1 BATTERY + C1 2.2uF 6.3V R2 12mA 1 SW LED3 C2 0.47uF 16V U1 LT1937ESC6 LED4 WHITE 4 SHDN 100K FB 3 GND GND 2 5 R1 8.06 1% E5 SHDN GND GND E2 E4 C C D2 L2 22uH CMDSH-3 SW2 ON/OFF C4 2.2uF 6.3V B R3 100K 4 6 1 Vin SW SHDN FB C3 0.47uF 16V U2 LT1937ESC6 3 B GND GND 2 5 E6 SHDN CONTRACT NO. A APPROVALS DRAWN DATE June Wu 2/13/02 DAVE KIM 2/13/02 TECHNOLOGY 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 A TITLE CHECKED LT1937ESC6, SINGLE CELL WHITE LED DRIVER APPROVED ENGINEER SIZE CAGE CODE DESIGNER DWG NO REV DC507A Thursday, March 21, 2002 5 4 3 SCALE: 2 FILENAME: A SHEET 1 1 OF 1