Datasheet

LT3475/LT3475-1
17
3475fb
BOOST1 BOOST2
SW1
D2
D3
D4
SW2
OUT1 OUT2
LED1
LED2
V
C1
V
C2
REF
R
T
V
ADJ1
V
ADJ2
GND
LT3475
V
IN
SHDN
D1
L2
10
μH
L1
10μH
C3
0.22
μF
6.3V
C2
0.22μF
6.3V
C4
2.2
μF
6.3V
C5
2.2
μF
6.3V
3475 TA04
D1, D2: B240A
D3, D4: MBR0540
C1 TO C5: X5R OR X7R
V
IN
5V TO 36V
C1
4.7
μF
50V
R1
24.3k
C7
0.1μF
C6
0.1
μF
3A LED
CURRENT
LED 1
f
SW
= 600kHz
BOOST1 BOOST2
SW1
D2
D3
D4
SW2
OUT1
LED1
OUT2
LED2
V
C1
V
C2
REF
R
T
V
ADJ1
V
ADJ2
GND
LT3475
V
IN
SHDN
D1
L2
15
μH
L1
15μH
C3
0.22
μF
10V
C2
0.22μF
10V
C4
2.2
μF
10V
C5
2.2μF
10V
3475 TA05
D1, D2: B240A
D3, D4: MMSD4148T1
C1 TO C5: X5R OR X7R
V
IN
10V TO 36V
C1
4.7
μF
50V
R1
24.3k
C7
0.1μF
C6
0.1
μF
LED 4LED 3
1.5A LED
CURRENT
LED 2
1.5A LED
CURRENT
LED 1
f
SW
= 600kHz
Step-Down 3A LED Driver
Dual Step-Down LED Driver with Series Connected LEDs
TYPICAL APPLICATIONS