Datasheet

LT3590
12
3590f
48V Supply for 5 LED String, 30mA Current
Conversion Effi ciency
TYPICAL APPLICATIONS
24V Supply for a 5 LED String, 30mA Current
V
IN
48V
CONTROL
>1.5V
L1: MURATA LQH32CN-391
CTRL
V
IN
R1
6.8
Ω
30mA
LT3590
VREG SW
LED
GND
C2
1μF
C3
0.1μF
C1
1μF
3590 TA03a
L1
470μH
V
IN
24V
CONTROL
>1.5V
L1: MURATA LQH32CN-221
CTRL
V
IN
R1
6.8
Ω
30mA
LT3590
VREG SW
LED
GND
C2
1μF
C3
0.1μF
C1
1μF
3590 TA04a
L1
220μH
48V Supply for 6 LED String, 50mA Current Conversion Effi ciency
V
IN
48V
CONTROL
>1.5V
L1: MURATA LQH32CN221K03
CTRL
V
IN
R1
4
Ω
6
LEDs
50mA
LT3590
VREG SW
LED
GND
C2
1μF
C3
0.1μF
C1
1μF
3590 TA02a
L1
470μH
Conversion Effi ciency
LED CURRENT (mA)
0
EFFICIENCY (%)
70
80
90
30
50
60
50
40
10 20 40
100
3590 TA02b
LED CURRENT (mA)
0
100
90
80
70
60
50
40
15 25
510
20 30
EFFICIENCY (%)
3590 TA03b
LED CURRENT (mA)
0
100
90
80
70
60
50
40
15 25
510
20 30
EFFICIENCY (%)
3590 TA04b