5
4
3
E12
VIN
2.5V-10V
2
E1
PVIN
@100mA
PVIN RANGE
E2
GND
D
C9
C1
2.2uF
35V
E6
LED1-
D1
L1
ZLLS400
10uH
A915AY-100M
TOKO
VLED
3V-16V
18V
4V-21V
24V
5V-25V
29V
D
4.7uF
25V
PVIN
E3
LED1+
C3
1uF
16V
100mA
36Vovp
1
L2
100mA
36Vovp
D2
10uH
A915AY-100M
TOKO
E4
LED2+
C2
2.2uF
35V
ZLLS400
E5
LED2-
VIN
U1
LT3486EFE
VIN
3
C
E7
R1
100k
7
SHDN
Q1
FDN5630
R2
2 Ohm
1%
JP1
VIN
CTRL1
1
JP2
PWM1
1
VIN
2
Terminal
E13
GND
2
16
VIN
SW2
OVP2
14
CTRL2
10
15
OVP1
CTRL1
13
SHDN
REF
8
PWM1
PWM2
6
FB1
FB2
VC1 GND RT
R3
100k
VIN
B
1
SW1
2
Terminal
3
R11
0 Ohm
E10
CTRL1
C7
(Opt)
3
VIN
5
17
4
R8
2.80k
1%
C4
Q2
FDN5630
0.1uF
9
11
VC2
12
R9
63.4k
1%
C5
4700pF
C
R4
100k
VIN
R10
2.80k
1%
VIN
VIN
2
JP4
CTRL2
VIN
1
2
Terminal
3
3
C8
(Opt)
E8
PWM2
E9
PWM1
Terminal
B
R12
0 Ohm
E11
CTRL2
! "# $%& '
(! ) * + (
# ,
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
JP3
PWM2
C6
4700pF
CUSTOMER NOTICE
A
1
R5
2 Ohm
1%
4
3
CONTRACT NO.
APPROVALS
DRAWN:
TECHNOLOGY
Rudy B
CHECKED:
TITLE:
SCHEMATIC
SIZE
DWG NO.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
APPROVED:
ENGINEER:
DESIGNER:
A
Keith S./Dave KIM
2
DATE:
REV
('-
Thursday, October 13, 2005
2
SHEET
1
1
OF 1
A