Datasheet

LT3743
5
3743fd
TYPICAL PERFORMANCE CHARACTERISTICS
EN/UVLO Threshold (Falling) EN/UVLO Pin Current I
Q
in Shutdown
V
IN
(V)
6
EN/UVLO THRESHOLD (V)
1.58
1.64
1.70
30
–50°C
130°C
3743 G01
1.52
1.46
1.40
12
18
24
36
V
IN
(V)
6
EN/UVLO PIN CURRENT (µA)
6
8
10
30
3743 G02
4
2
0
12
18
24
36
25°C
130°C
–50°C
V
IN
(V)
0
I
Q
(µA)
0.3
0.4
0.5
32
3743 G03
0.2
0.1
0
8
16
24
40
130°C
25°C
Quiescent Current (Non-Switching) V
REF
Pin Voltage V
REF
Current Limit
V
IN
(V)
6
QUIESCENT CURRENT (mA)
1.2
1.6
2.0
30
3743 G04
0.8
0.4
0
12
18
24
36
T
A
= 25°C
T
A
= 130°C
T
A
= –50°C
TEMPERATURE (°C)
–50
V
REF
VOLTAGE (V)
2.00
2.01
2.02
90
3743 G05
1.99
1.98
1.97
–15
20
55
125
V
IN
= 36V
V
IN
= 6V
V
IN
(V)
6
I
LIMIT
(mA)
1.2
1.4
1.6
30
3743 G06
1.0
0.8
12
18
24
36
T
A
= 25°C
T
A
= 130°C
T
A
= –50°C
Oscillator Frequency RT Pin Current Limit Soft-Start Pin Current
TEMPERATURE (°C)
–50
FREQUENCY (MHz)
0.9
1.2
1.5
90
3743 G07
0.6
0.3
0
–15
20
55
125
1.2MHz
900kHz
220kHz
TEMPERATURE (°C)
–50
I
LIMIT
(µA)
70
80
90
90
3743 G08
60
50
40
–15
20
55
125
TEMPERATURE (°C)
–50
I
SS
(µA)
5
6
7
90
3743 G09
4
3
–15
20
55
125
V
IN
= 36V
V
IN
= 6V