Datasheet

LT3597
18
3597fa
Typical applicaTions
48V 1MHz Triple Step-Down 100mA RGB LED Driver
Efficiency
3597 TA02
LT3597
V
IN
EN/UVLO
BOOST1
SW1
DA1
FB1
V
OUT1
LED1
BIAS
FAULT
PWM1-3
CTRL1-3
SYNC
RT
BOOST2
SW2
DA2
FB2
V
OUT2
LED2
BOOST3
SW3
DA3
FB3
V
OUT3
LED3
V
REF
T
SET
CTRLM
LT3597
9.1k
100k
97k
91k
270k
3.3µF
0.1µF
10µF
100µH
0.1µF
2.2µF
100µH
4.7k
97k
0.1µF
2.2µF
100µH
3.83k
97k
100k
10k
82.5k
V
REF
49.9k
10µF
V
CC
5V
V
IN
48V
V
OUT1
33.2k
I
SET1
I
SET2
I
SET3
GND
20k 20k 20k
V
OUT2
V
OUT3
(1MHz)
3
3
R
B
G
LED CURRENT PER CHANNEL (mA)
0 10
EFFICIENCY (%)
90
80
70
50
60
40
20
30
10
0
6050 8070403020
3597 TA02b
10090