Datasheet

LT3663
4
3663fc
For more information www.linear.com/LT3663
Minimum Switch On-Time
RUN Pin Current
Output Current Limit
Feedback Voltage
TEMPERATURE (°C)
–50
OUTPUT CURRENT LIMIT (A)
500 100
3663 G04
15012525–25 75
1.20
1.15
1.05
1.10
1.00
0.90
0.95
0.85
0.80
R
ILIM
= 36.5k
TEMPERATURE (°C)
–50
FEEDBACK VOLTAGE (V)
500 100
3663 G05
15012525–25 75
0.84
0.82
0.80
0.78
0.76
TEMPERATURE (°C)
–50
MINIMUM SWITCH-ON TIME (ns)
500 100
15012525–25 75
140
120
100
80
40
60
20
0
RUN PIN VOLTAGE (V)
0
RUN PIN CURRENT (µA)
3010 50
3663 G11
60
20 40
45
40
30
35
25
15
5
20
10
0
TEMPERATURE (°C)
SWITCHING FREQUENCY (MHz)
1.6
3663 G02
0.9
1.0
1.1
1.2
1.3
1.4
1.5
–50 –25 0 25 50 75 100 150125
LT3663-X
LT3663
Switching Frequency
OUTPUT CURRENT (A)
OUTPUT VOLTAGE (V)
6
5
4
3663 G12
0
1
2
3
0 0.2 0.4 0.6 0.8 1 1.2
1.4
R
ILIM
= 28.7k
Output Current Limit
Typical perForMance characTerisTics
T
A
= 25°C, unless otherwise noted.
V
IN
Shutdown Current
V
IN
Overvoltage Lockout
TEMPERATURE (°C)
–50
INPUT VOLTAGE (V)
500 100
3663 G06
15012525–25 75
42
32
33
34
35
36
37
38
39
40
41
RISING
FALLING
V
IN
VOLTAGE (V)
0
V
IN
CURRENT (µA)
3010 50
3663 G08
60
20 40
800
700
500
600
400
200
300
100
0
V
RUN
= 0V
TEMPERATURE (°C)
INPUT VOLTAGE (V)
8.0
7.5
7.0
3663 G03
4.0
4.5
5.0
5.5
6.0
6.5
–50 –25 0 25 50 75 100 150125
RISING
FALLING
V
IN
Undervoltage Lockout