Datasheet

10
LTC3490
3490fa
TYPICAL APPLICATIO S
U
Luxeon Red LED Driver Without Dimming
+
SW
CAP
ON/OFF
LED
1 NiMH OR
ALKALINE
CELL
4.7µF
3490 TA06
LOBAT
V
IN
CTRL/SHDN
CELLS
1M
LUMILEDS
LUXEON
LXHL-BD03
GND
LTC3490
0.6Ω
3.3µH
Luxeon Red LED Driver with Dimming
+
SW
CAP
ON/OFF
LED
1 NiMH OR
ALKALINE
CELL
4.7µF
MBRM120E
3490 TA07
LOBAT
V
IN
CTRL/SHDN
CELLS
1M
LUMILEDS
LUXEON
LXHL-BD03
GND
LTC3490
3.3µH
V
IN
(V)
1
EFFICIENCY (%)
50
60
70
RESISTOR
3
3490 G06
40
30
0
1.5
2
2.5
20
10
90
80
SCHOTTKY
Efficiency vs V
IN
with Red LED