Datasheet

16
LT3466
3466fa
TYPICAL APPLICATIO S
U
Li-Ion to 8/8 White LEDs Conversion Efficiency
Li-Ion to 9/9 White LEDs Conversion Efficiency
CTRL1 CTRL2
R
T
SW1 SW2V
IN
3V TO 5V
L2
47µH
C
IN
1µF
C
OUT1
2.2µF
C
OUT2
2.2µF
63.4k
1%
L1
47µH
LT3466
C
IN
: TAIYO YUDEN JMK107BJ105
C
OUT1
, C
OUT2
: TAIYO YUDEN GMK325BJ225
L1, L2: TOKO A918CE-470M
V
OUT1
FB1
R
FB1
10Ω
R
FB2
10Ω
3466 TA05a
V
OUT2
FB2
OFF ON
OFF ON
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
FB2
16.5Ω
R
FB1
16.5Ω
3466 TA06a
V
OUT2
FB2
OFF ON
OFF ON
LED CURRENT (mA)
0
70
75
85
15
3466 TA05b
65
60
510 20
55
50
80
EFFICIENCY (%)
V
IN
= 3.6V
8/8 LEDs
LED CURRENT (mA)
0
70
75
85
90
12
3466 TA06b
65
60
48
80
EFFICIENCY (%)
V
IN
= 3.6V
9/9 LEDs