DC507A - Schematic

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
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