Datasheet

LT3837
5
3837fd
TEMPERATURE (°C)
–50
V
UVLO
(µA)
0.70
0.80
0.90
0.85
25 75
3837 G15
0.60
0.65
0.75
0.55
0.50
–25 0
50 100 125
0.45
0.40
V
CC
= 14V
TEMPERATURE (°C)
–50
I
VC
(µA)
60
65
70
25 75
3837 G10
55
50
–25 0
50 100 125
45
40
SOURCE CURRENT
V
FB
= 1.1V
SINK
CURRENT
V
FB
= 1.4V
TEMPERATURE (°C)
–50
900
g
m
(µmho)
950
1000
1050
1100
–25 0 25 50
3837 G11
75 100 125
TEMPERATURE (°C)
–50
UVLO (V)
1.240
1.245
1.250
25 75
3837 G13
1.235
1.230
–25 0
50 100 125
1.225
1.220
TEMPERATURE (°C)
–50
3.4
3.5
3.7
25 75
3837 G14
3.3
3.2
–25 0
50 100 125
3.1
3.0
3.6
I
UVLO
(µA)
TEMPERATURE (°C)
–50
SFST CHARGE CURRENT (µA)
23
25
3837 G16
20
18
–25 0 50
17
16
24
22
21
19
75 100 125
CAPACITANCE (nF)
0
TIME (ns)
80
70
60
50
40
30
20
10
0
8
3837 G17
2 4 6 1071 3 5 9
T
A
= 25°C
FALL TIME
RISE TIME
TEMPERATURE (°C)
–50 –25
19.0
V
CC
(V)
20.0
21.5
0
50
75
3837 G18
19.5
21.0
20.5
25
100
125
I
CC
= 10mA
TEMPERATURE (°C)
–50
A
V
(V/V)
1550
25
3837 G12
1400
1300
–25 0 50
1250
1200
1150
1100
1600
1650
1700
1500
1450
1350
75 100 125
TYPICAL PERFORMANCE CHARACTERISTICS
Feedback Amplifier Source and
Sink Current vs Temperature
Feedback Amplifier g
m
vs Temperature
Feedback Amplifier Voltage Gain
vs Temperature
UVLO vs Temperature
I
UVLO
Hysteresis vs Temperature
Soft-Start Charge Current
vs Temperature
PG, SG Rise and Fall Times
vs Load Capacitance
Minimum On-Time
vs Temperature
UVLO Shutdown Threshold
vs Temperature