Datasheet

LT3497
5
3497f
TYPICAL PERFORMANCE CHARACTERISTICS
Quiescent Current Current Limit vs Temperature
Schottky Leakage Current vs
Temperature (–50°C to 125°C)
Open-Circuit Output Clamp Voltage
vs Temperature (–50°C to 125°C)
Input Current in Output Open
Circuit vs Temperature
(–50°C to 125°C)
(T
A
= 25°C unless otherwise specifi ed)
Switching Frequency vs
Temperature
Sense Voltage (V
CAP
– V
LED
)
vs V
CAP
Sense Voltage vs Temperature
V
IN
(V)
0
5
6
7
8
3497 G09
4
3
246 10
2
1
0
QUIESCENT CURRENT (mA)
–50°C
125°C
25°C
TEMPERATURE (°C)
–50
300
CURRENT LIMIT (mA)
350
400
450
500
–25 0 25 50
3497 G11
75 100 125
TEMPERATURE (°C)
0
SCHOTTKY LEAKAGE CURRENT (µA)
1
2
3
–50 –25 0 25 50
3497 G12
75 100 125
24V
16V
TEMPERATURE (°C)
–50
28
OUTPUT CLAMP VOLTAGE (V)
30
32
34
36
–25 0 25 50
3497 G13
75 100 125
TEMPERATURE (°C)
–50
INPUT CURRENT (mA)
20
25
30
25 75
3497 G14
15
10
–25 0
50 100 125
5
0
V
IN
= 3V
TEMPERATURE (°C)
–50
SWITCHING FREQUENCY (MHz)
2.50
25
3497 G15
2.20
2.00
–25 0 50
1.90
1.80
2.60
2.40
2.30
2.10
75 100 125
V
IN
= 3.6V
V
CAP
(V)
5
SENSE VOLTAGE (mV)
200
204
208
25
3497 G16
196
192
188
10
15
20
30
–50°C
125°C
25°C
TEMPERATURE (°C)
–50
190
SENSE VOLTAGE (mV)
194
198
202
206
–25 0 25 50
3497 G17
75 100 125