Datasheet

17
LT3466
3466fa
TYPICAL APPLICATIO S
U
Li-Ion to 10/10 White LEDs Conversion Efficiency
2 AA Cells to 2/2 White LEDs Conversion Efficiency
CTRL1 CTRL2
R
T
SW1 SW2V
IN
3V TO 5V
L2
68µH
C
IN
1µF
C
OUT1
1µF
C
OUT2
1µF
147k
1%
L1
68µH
LT3466
C
IN
: TAIYO YUDEN JMK107BJ105
C
OUT1
, C
OUT2
: TAIYO YUDEN UMK325BJ105
L1, L2: TOKO A920CY-680M
V
OUT1
FB1
R
FB1
16.5Ω
R
FB2
16.5Ω
3466 TA07a
V
OUT2
FB2
OFF ON
OFF ON
CTRL1 CTRL2
R
T
SW1 SW2V
IN
3.3V
L2
15µH
C
IN1
0.1µF
C
IN2
1µF
C
OUT1
1µF
C
OUT2
1µF
L1
15µH
V
CC
1.8V TO 3V
LT3466
C
IN1
: TAIYO YUDEN EMK107BJ104
C
IN2
: TAIYO YUDEN JMK107BJ105
C
OUT1
, C
OUT2
: TAIYO YUDEN GMK316BJ105
L1, L2: MURATA LQH32CN150
V
OUT1
FB1
R
FB2
10Ω
63.4k
1%
R
FB1
10Ω
3466 TA08a
V
OUT2
FB2
OFF ON
OFF ON
LED CURRENT (mA)
0
70
75
85
90
12
3466 TA07b
65
60
48
80
EFFICIENCY (%)
V
IN
= 3.6V
10/10 LEDs
LED CURRENT (mA)
0
70
75
15
3466 TA08b
65
60
510 20
55
50
EFFICIENCY (%)
V
IN
= 2.4V
2/2 LEDs