Datasheet

LTC3454
4
3454fa
V
IN
(V)
2.7
40
V
LED
(mV)
42
46
48
50
60
54
3.5
4.3
4.7
3454 G10
44
56
58
52
3.1
3.9
5.1
5.5
PROGRAMMED I
LED
= 500mA
T
A
= 25°C
TEMPERATURE (°C)
–55
V
OUT
(V)
5.10
5.15
5.20
105
3454 G11
5.05
5.00
4.90
–15
25
65
–35 125
5
45
85
4.95
5.40
5.30
5.35
5.25
PROGRAMMED I
LED
= 1A
V
IN
= 3.6V
V
IN
(V)
2.7
V
OUT
(V)
5.10
5.15
5.20
5.1
3454 G12
5.05
5.00
4.90
3.5
4.3
5.5
3.1
3.9
4.7
4.95
5.40
5.30
5.35
5.25
PROGRAMMED I
LED
= 1A
T
A
= 25°C
PROGRAMMED I
LED
(mA)
100
V
OUT
(V)
5.10
5.15
5.20
900
3454 G13
5.05
5.00
4.90
300
500
700
200 1000
400
600
800
4.95
5.40
5.30
5.35
5.25
V
IN
= 3.6V
T
A
= 25°C
TEMPERATURE (°C)
–55
90
R
DS
(mΩ)
120
150
180
65 85 105
300
3454 G14
–35 –15 5 25 45 125
210
240
270
MEASURED AT 500mA
V
IN
= 2.7V
V
IN
= 5.5V
V
IN
= 3.6V
V
IN
= 4.2V
TEMPERATURE (°C)
–55
40
R
DS
(mΩ)
80
60
100
120
65 85 105
200
3454 G15
–35 –15 5 25 45 125
140
160
180
MEASURED AT 500mA
V
IN
= 2.7V
V
IN
= 5.5V
V
IN
= 3.6V
V
IN
= 4.2V
LED Current Programming Ratio
vs Temperature
V
LED
vs Temperature
LED Current Programming Ratio
vs V
IN
V
LED
vs V
IN
Maximum Regulated V
OUT
vs Temperature
Maximum Regulated V
OUT
vs V
IN
NMOS R
DS(ON)
vs Temperature
Maximum Regulated V
OUT
vs Programmed LED Current
PMOS R
DS(ON)
vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
TEMPERATURE (°C)
–55
RATIO
3850
3900
3950
105
3454 G07
3800
3750
3650
–15
25
65
–35 125
5
45
85
3700
4050
4000
V
IN
= 3.6V
PROGRAMMED I
LED
= 1A
PROGRAMMED I
LED
= 500mA
PROGRAMMED I
LED
= 150mA
V
IN
(V)
2.7
RATIO
3850
3900
3950
5.1
3454 G08
3800
3750
3650
3.5
4.3
3.1 5.5
3.9 4.7
3700
4050
4000
PROGRAMMED I
LED
= 500mA
T
A
= 25°C
TEMPERATURE (°C)
–55
V
LED
(mV)
90
120
150
5 45 125
3454 G09
60
30
0
–35 –15
25
65 85 105
V
IN
= 3.6V
PROGRAMMED
I
LED
= 100mA
PROGRAMMED
I
LED
= 500mA
PROGRAMMED
I
LED
= 1A