Datasheet

LT3845A
5
3845afa
Shutdown Threshold (Rising)
vs Temperature
V
CC
vs Temperature
V
CC
vs I
CC(LOAD)
I
CC
Current Limit vs Temperature
V
CC
UVLO Threshold (Rising)
vs Temperature I
CC
vs V
CC
(SHDN = 0V)
Error Amp Transconductance
vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
3845A G01
SHUTDOWN THRESHOLD, RISING (V)
1.38
1.37
1.36
1.35
1.34
1.33
1.32
TEMPERATURE (°C)
–50 25 75–25 0 50 100 125
Shutdown Threshold (Falling)
vs Temperature
3845A G02
TEMPERATURE (°C)
–50
SHUTDOWN THRESHOLD, FALLING (V)
1.26
1.25
1.24
1.23
1.22
1.21
1.20
25 75–25 0 50 100 125
TEMPERATURE (°C)
–50 25 75–25 0 50 100 125
3845A G03
8.2
8.1
8.0
7.9
7.8
7.7
7.6
7.5
V
CC
(V)
I
CC
= 20mA
I
CC(LOAD)
(mA)
0
V
CC
(V)
40
3845A G04
10
20
30
8.05
8.00
7.95
7.90
7.85
5 15 25
35
T
A
= 25°C
V
CC
vs V
IN
3845A G05
V
IN
(V)
V
CC
(V)
9
8
7
6
5
4
3
4
6
8
9
5 7
10
11
12
I
CC
= 20mA
T
A
= 25°C
–50 –25 1000 50 12525 75
TEMPERATURE (°C)
225
200
175
150
125
100
75
50
3845A G06
I
CC
CURRENT LIMIT (mA)
3845A G07
TEMPERATURE (°C)
–50 25 75–25 0 50 100
125
V
CC
UVLO THRESHOLD, RISING (V)
6.5
6.4
6.3
6.2
6.1
6.0
3845A G08
V
CC
(V)
0
I
CC
(µA)
15
20
25
16
10
5
0
2 4 6
8 10
12 14 18
20
T
A
= 25°C
TEMPERATURE (°C)
–50
ERROR AMP TRANSCONDUCTANCE (µS)
350
345
340
335
330
325
320
25 75
3845A G09
–25 0
50 100 125