LT3591
TYPICAL PERFORMANCE CHARACTERISTICS
Quiescent Current
(V
CTRL
= 3V)
6
5
QUIESCENT CURRENT (mA)
125°C
4
– 50°C
3
2
1
0
0
3
6
V
IN
(V)
9
12
3591 G09
T
A
= 25°C, unless otherwise specified.
Schottky Leakage Current
vs Temperature
15
SCHOTTKY LEAKAGE CURRENT (µA)
V
R
= 10V
V
R
= 16V
V
R
= 20V
Current Limit vs Temperature
1000
25°C
CURRENT LIMIT (mA)
800
12
600
9
400
6
200
3
0
–50
–25
0
25
50
75
TEMPERATURE (°C)
100
125
0
–50 –25
50
25
75
0
TEMPERATURE (°C)
100
125
3591 G10
3591 G11
Open-Circuit Output Clamp
Voltage vs Temperature
45
8
7
44
INPUT CURRENT (mA)
6
5
4
3
2
1
40
–50 –25
50
25
0
75
TEMPERATURE (°C)
100
125
Input Current in Output Open
Circuit vs Temperature
V
IN
= 3V
SWITCHING FREQUENCY (kHz)
1200
1150
1100
1050
1000
950
900
850
800
50
25
75
0
TEMPERATURE (°C)
100
125
Switching Frequency
vs Temperature
OUTPUT CLAMP VOLTAGE (V)
43
42
41
0
–50 –25
750
–50 –25
50
25
75
0
TEMPERATURE (°C)
100
125
3591 G12
3591 G13
3591 G14
Maximum Duty Cycle
vs Temperature
100
208
Sense Voltage (V
CAP
– V
LED
)
vs V
CAP
208
Sense Voltage (V
CAP
– V
LED
)
vs Temperature
MAXIMUM DUTY CYCLE (%)
98
SENSE VOLTAGE (mV)
204
25°C
125°C
196
– 50°C
SENSE VOLTAGE (mV)
204
96
200
200
94
196
92
192
192
90
–50 –25
50
25
75
0
TEMPERATURE (°C)
100
125
188
5
10
15
20
V
CAP
(V)
25
30
35
3591 G16
188
–50
–25
50
25
0
75
TEMPERATURE (°C)
100
125
3591 G15
3591 G17
3591f
4
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
