Datasheet

4
LT3466
3466fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Switch Saturation Voltage (V
CESAT
) Switch Current Limit vs Duty Cycle
Shutdown Quiescent Current
(CTRL1 = CTRL2 = 0V)
Open-Circuit Clamp Voltage
vs V
IN
SWITCH CURRENT (mA)
0
SWITCH SATURATION VOLTAGE (mV)
250
300
350
400
3466 G04
200
150
0
100
200
300
50
150
250
350
100
50
450
400
T
A
= 25°C
V
CE1
, V
CE2
DUTY CYCLE (%)
0
CURRENT LIMIT (mA)
300
400
80
3466 G05
200
100
250
350
450
500
150
50
0
20
40
60
100
T
A
= –50°C
T
A
= 85°C
T
A
= 25°C
V
IN
(V)
4
SHUTDOWN CURRENT (µA)
60
80
100
20
3466 G06
40
20
50
70
90
30
10
0
8
12
16
6222
10
14
18
24
T
A
= –50°C
T
A
= 100°C
T
A
= 25°C
V
IN
(V)
2
OUTPUT CLAMP VOLTAGE (V)
39.5
40.0
18
3466 G07
39.0
38.5
6
10
12
24
40.5
14
4
8
20 22
16
V
OUT2
V
OUT1
T
A
= 25°C
R
T
= 63.4k
TEMPERATURE (°C)
–50
OUTPUT CLAMP VOLTAGE (V)
39
40
3466 G08
38
37
0
50
100
42
41
V
IN
= 3.6V
R
T
= 63.4k
V
OUT2
V
OUT1
V
IN
(V)
2
INPUT CURRENT (mA)
15
20
25
18
3466 G09
10
5
0
468
10 12
14 16 20 22
24
T
A
= 25°C
R
T
= 63.4k
Open-Circuit Clamp Voltage
vs Temperature
Input Current with Output 1 and
Output 2 Open Circuit
V
FB
vs V
CTRL
CONTROL VOLTAGE (V)
0
FEEDBACK VOLTAGE (mV)
100
150
2
3466 G03
50
0
0.5
1
1.5
250
200
V
IN
= 3V
T
A
= 25°C
Distribution of V
FB
vs V
CTRL
V
FB
vs V
CTRL
(Temperature Variation)
CONTROL VOLTAGE (V)
0
FEEDBACK VOLTAGE (mV)
100
150
MAX
±4mV
TYP
MIN
2
3466 G16
50
0
0.5
1
1.5
250
V
IN
= 3V
T
A
= 25°C
200
±4mV
CONTROL VOLTAGE (V)
0
FEEDBACK VOLTAGE (mV)
100
150
2
3466 G17
50
0
0.5
1
1.5
250
200
±5mV
T
A
= –45°C
T
A
= 25°C
T
A
= 85°C