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LT3466 데이터 시트보기 (PDF) - Linear Technology
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LT3466
Dual Full Function White LED Step-Up Converter with Built-In Schottky Diodes
Linear Technology
LT3466 Datasheet PDF : 20 Pages
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LT3466
TYPICAL APPLICATIO S
Li-Ion to 8/8 White LEDs
3V TO 5V
C
IN
1
µ
F
L1
47
µ
H
L2
47
µ
H
C
OUT1
2.2
µ
F
SW1 V
IN
SW2
V
OUT1
V
OUT2
LT3466
C
OUT2
2.2
µ
F
FB1
FB2
CTRL1 R
T
CTRL2
OFF ON
OFF ON
63.4k
1%
R
FB1
10
Ω
C
IN
: TAIYO YUDEN JMK107BJ105
C
OUT1
, C
OUT2
: TAIYO YUDEN GMK325BJ225
L1, L2: TOKO A918CE-470M
R
FB2
10
Ω
3466 TA05a
Li-Ion to 9/9 White LEDs
3V TO 5V
C
IN
1
µ
F
L1
68
µ
H
L2
68
µ
H
C
OUT1
1
µ
F
SW1 V
IN
SW2
V
OUT1
V
OUT2
LT3466
C
OUT2
1
µ
F
FB1
FB2
CTRL1 R
T
CTRL2
OFF ON
147k
OFF ON
1%
R
FB1
16.5
Ω
C
IN
: TAIYO YUDEN JMK107BJ105
C
OUT1
, C
OUT2
: TAIYO YUDEN UMK325BJ105
L1, L2: TOKO A920CY-680M
R
FB2
16.5
Ω
3466 TA06a
Conversion Efficiency
85
V
IN
= 3.6V
8/8 LEDs
80
75
70
65
60
55
50
0
5
10
15
20
LED CURRENT (mA)
3466 TA05b
Conversion Efficiency
90
V
IN
= 3.6V
9/9 LEDs
85
80
75
70
65
60
0
4
8
LED CURRENT (mA)
12
3466 TA06b
3466fa
16
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