LT3840
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted.
UVLO Pin Current vs UVLO
Voltage
Enable Pin Current vs Enable
Voltage
Average Current Sense Voltage vs
Temperature
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
5
4
3
2
1
0
55
50
45
40
35
30
25
20
15
10
ICTRL = FLOAT
ICTRL = 500mV
0
10
20
30
40
50
60
0
10
20
30
40
50
60
–50 –25
0
25 50 75 100 125 150
ENABLE PIN VOLTAGE (V)
UVLO PIN VOLTAGE (V)
TEMPERATURE (°C)
3840 G10
3840 G11
3840 G12
Current Monitor (IMON) Voltage
vs Temperature
Power Good Threshold vs
Temperature
FB Overvoltage Threshold vs
Temperature
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
1.4
1.3
1.2
1.1
1.0
0.9
0.8
1.6
1.5
1.4
1.3
1.2
1.1
1.0
V
= 50mV
SENSE
FB RISING
PG RISING
FB FALLING
PG FALLING
V
= 25mV
SENSE
–50 –25
0
25 50 75 100 125 150
–50 –25
0
25 50 75 100 125 150
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
3840 G13
3840 G14
3840 G15
3840fa
6
For more information www.linear.com/LT3840
Linear [ Linear ]
