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参数资料
型号： LTC3675EUFF#TRPBF
厂商： LINEAR TECHNOLOGY CORP
元件分类： 电源管理
英文描述： POWER SUPPLY SUPPORT CKT, PQCC44
封装： 4 X 7 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-44
文件页数： 5/36页
文件大小： 413K
代理商： LTC3675EUFF#TRPBF
LTC3675
13
3675f
TYPICAL PERFORMANCE CHARACTERISTICS
LED Driver, LED Current
vs Temperature
High Voltage Boost Regulator,
Efciency vs Load
Always-On LDO, Load Regulation
Buck-Boost Regulator,
VOUT6 vs Temperature
Buck-Boost Regulator, Forward
Current Limit vs Temperature
Buck-Boost Regulator, Switch
RDSON vs Temperature
LED Driver, Dual String Efciency,
10 LEDs per String
LED Driver, Dual String Efciency,
4 LEDs per String
LED Driver, Forward Current Limit
vs Temperature
TEMPERATURE (°C)
V
OUT6
(V)
3.40
3.36
3.38
3.32
3.34
3.26
3.24
3.30
3.28
3.22
3.20
–15
–35
3675 G40
5
25
65
85 105 125
–55
45
VIN = 2.7V
VIN = 3.6V
VIN = 5.5V
PWM MODE, LOAD = 500mA
TEMPERATURE (°C)
I FW
D
6(A)
2.90
2.80
2.85
2.70
2.75
2.55
2.50
2.65
2.60
2.45
2.40
–15
–35
3675 G41
5
25
65
85 105 125
–55
45
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
TEMPERATURE (°C)
R
DSON
(Ω)
0.60
0.50
0.55
0.40
0.45
0.25
0.20
0.35
0.30
0.15
0.10
0.05
0
–15
–35
3675 G42
5
25
65
85 105 125
–55
45
NMOS RDSON, VIN = 2.7V
PMOS RDSON, VIN = 2.7V
PMOS RDSON, VIN = 4.2V
NMOS RDSON, VIN = 4.2V
DAC CODE (DECIMAL)
EFFICIENCY
(%)
100
80
90
60
70
30
20
50
40
10
0
100
10
3675 G43
1000
1
VIN = 4.2V
VIN = 2.7V
RLED_FS = 20kΩ
DAC CODE (DECIMAL)
EFFICIENCY
(%)
100
80
90
60
70
30
20
50
40
10
0
100
10
3675 G44
1000
1
VIN = 4.2V
VIN = 2.7V
RLED_FS = 20kΩ
TEMPERATURE (°C)
I FW
D
6(A)
2.10
2.00
2.05
1.85
1.80
1.95
1.90
1.75
1.70
1.65
1.60
–15
–35
3675 G45
5
25
65
85 105 125
–55
45
VIN = 3.6V
VIN = 2.7V
VIN = 5.5V
TEMPERATURE (°C)
I LED
(mA)
10.25
10.15
10.20
10.00
9.95
10.10
10.05
9.90
9.85
9.80
9.75
–15
–35
3675 G46
5
25
65
85 105 125
–55
45
VIN = 5.5V
VIN = 2.7V
VIN = 3.6V
SINGLE LED STRING CURRENT
MODE0 = MODE1 = 0
LOAD CURRENT (mA)
EFFICIENCY
(%)
100
80
90
60
70
30
20
50
40
10
0
100
10
3675 G47
1000
1
VIN = 2.7V
VIN = 3.6V
VIN = 5.5V
MODE1 = 1, MODE0 = 0
VOUT = 12V
LOAD CURRENT (mA)
V
OUT
(V)
1.220
1.210
1.215
1.195
1.190
1.205
1.200
1.185
1.180
10
1
3675 G48
100
0.1
VIN = 2.7V
VIN = 5.5V
VIN = 3.6V
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