Datasheet

LT3070
8
3070fb
For more information www.linear.com/LT3070
TYPICAL PERFORMANCE CHARACTERISTICS
SENSE Pin Current
Logic Input Threshold Voltages
Logic Low to Hi-Z State Transitions
Logic Pin Input Current,
High State
EN Pin Logic High Current
TEMPERATURE (°C)
–75
LOGIC INPUT THRESHOLD VOLTAGE (V)
0.6
0.7
0.8
125
3070 G18
0.5
0.4
0.3
–50 –25 0
25 50
75 100 150
175
INPUT RISING
LOGIC LOW TO Hi-Z
INPUT FALLING
LOGIC Hi-Z TO LOW
SEE APPLICATIONS INFORMATION
FOR MORE DETAILS
Logic Input Threshold Voltages
Logic Hi-Z to High State Transitions
TEMPERATURE (°C)
–75
LOGIC INPUT THRESHOLD VOLTAGE (V)
2.8
2.9
3.0
125
3070 G19
2.7
2.6
2.5
–50 –25 0
25 50
75 100 150
175
INPUT FALLING
LOGIC HIGH TO Hi-Z
INPUT RISING
LOGIC Hi-Z TO HIGH
V
BIAS
= 3.3V
LOGIC Hi-Z TO HIGH THRESHOLD IS
RELATIVE TO V
BIAS
VOLTAGE
SEE APPLICATIONS INFORMATION
FOR MORE DETAILS
TEMPERATURE (°C)
–75
EN PIN LOGIC HIGH CURRENT (µA)
4.0
5.0
6.0
125
3070 G16
3.0
2.0
3.5
4.5
5.5
2.5
1.5
1.0
–25–50
250
75 100 150
50
175
V
EN
= V
BIAS
= 2.5V
TEMPERATURE (°C)
–75
LOGIC PIN INPUT CURRENT (µA)
40
35
30
25
20
15
10
5
0
125
3070 G21
–25 25 75 175100–50 0 50 150
V
LOGIC
= V
BIAS
= 2.5V
CURRENT FLOWS INTO THE PIN
Logic Pin Input Current,
Low State
TEMPERATURE (°C)
–75
LOGIC PIN INPUT CURRENT (µA)
40
35
30
25
20
15
10
5
0
125
3070 G22
–25 25 75 175100–50 0 50 150
V
BIAS
= 2.5V
V
LOGIC
= 0V
CURRENT FLOWS OUT OF THE PIN
TEMPERATURE (°C)
–75
SENSE PIN CURRENT (µA)
65
60
55
50
45
40
35
30
25
125
3070 G23
–25 25 75 175100–50 0 50 150
V
BIAS
= 2.5V
V
OUT
= 0.8V
CURRENT FLOWS INTO SENSE
SENSE Pin Current Current Limit vs Temperature
TEMPERATURE (°C)
–75
SENSE PIN CURRENT (µA)
400
375
350
325
300
275
250
225
200
125
3070 G24
–25 25 75 175100–50 0 50 150
V
BIAS
= 3.3V
V
OUT
= 1.8V
CURRENT FLOWS INTO SENSE
TEMPERATURE (°C)
–75
CURRENT LIMIT (A)
7.50
7.00
6.75
6.50
6.25
7.25
6.00
5.75
5.50
5.25
5.00
125
3070 G25
–25 25 75 175100–50 0 50 150
V
IN
– V
OUT(NOMINAL)
= 300mV
V
OUT
= 1.8V, V
BIAS
= 3.3V
V
OUT
= 1.2V, V
BIAS
= 3.3V
V
OUT
= 0.8V, V
BIAS
= 2.5V
PWRGD V
OL
vs Temperature
TEMPERATURE (°C)
–75
PWRGD V
OL
VOLTAGE (mV)
60
80
100
125
3070 G50
40
20
0
–25
25
75
–50
0
50
100
150
V
BIAS
= 2.5V
I
PWRGD
= 200µA