lt3743 Linear Technology Corporation, lt3743 Datasheet - Page 5

• Manufacturer Part Number: lt3743
• Description: High Current Synchronous Step-down Led Driver With Three-state Control
• Manufacturer: Linear Technology Corporation

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