Datasheet
6
LT3020/LT3020-1.2/
LT3020-1.5/LT3020-1.8
3020fc
GND Pin Current vs I
LOAD
SHDN Pin Threshold
SHDN Pin Input Current
SHDN Pin Input Current (µA)
ADJ Pin Bias Current
OUTPUT CURRENT (mA)
0
GND PIN CURRENT (µA)
2000
1800
1600
1200
1400
1000
800
600
400
200
0
80
3020 G07
2010 30 50 70 90
40
60
100
V
IN
= 1.7V
V
OUT
= 1.2V
T
J
= 25°C
TEMPERATURE (°C)
–50
SHDN PIN THRESHOLD (V)
1.0
0.9
0.8
0.6
0.7
0.5
0.4
0.3
0.2
0.1
0
3020 G08
250–25 50 75
125100
I
L
= 1mA
SHDN PIN VOLTAGE (V)
0
SHDN PIN INPUT CURRENT (µA)
5.0
4.5
4.0
3.0
3.5
2.5
2.0
1.5
1.0
0.5
0
8
3020 G09
213579
4
6
10
T
J
= 25°C
TEMPERATURE (°C)
–50
0
3020 G10
250–25 50 75
125100
V
SHDN
= 10V
SHDN PIN INPUT CURRENT (µA)
5.0
4.5
4.0
3.0
3.5
2.5
2.0
1.5
1.0
0.5
0
TEMPERATURE (°C)
–50
ADJ PIN BIAS CURRENT (nA)
25
20
15
5
10
0
3020 G11
250–25 50 75
125100
TYPICAL PERFOR A CE CHARACTERISTICS
UW
INPUT VOLTAGE (V)
2500
2250
2000
1750
1500
1250
1000
750
500
250
0
GND PIN CURRENT (µA)
3020 G28
0123
4
5
678910
V
OUT
= 1.5V (LT 3020-1.5)
T
J
= 25°C
R
L
= 15Ω
I
L
= 100mA
R
L
= 30Ω
I
L
= 50mA
R
L
= 150Ω
I
L
= 10mA
R
L
= 1.5k
I
L
= 1mA
GND Pin Current
INPUT VOLTAGE (V)
1000
900
800
700
600
500
400
300
200
100
0
QUIESCENT CURRENT (µA)
3020 G25
0123
4
5
678910
V
OUT
= 1.8V (LT 3020-1.8)
I
L
= 0
T
J
= 25°C
V
SHDN
= V
IN
V
SHDN
= 0V
INPUT VOLTAGE (V)
2500
2250
2000
1750
1500
1250
1000
750
500
250
0
GND PIN CURRENT (µA)
3020 G26
0123
4
5
678910
V
OUT
= 1.8V (LT 3020-1.8)
T
J
= 25°C
R
L
= 18Ω
I
L
= 100mA
R
L
= 36Ω
I
L
= 50mA
R
L
= 180Ω
I
L
= 10mA
R
L
= 1.8k
I
L
= 1mA
INPUT VOLTAGE (V)
1000
900
800
700
600
500
400
300
200
100
0
QUIESCENT CURRENT (µA)
3020 G27
0123
4
5
678910
V
OUT
= 1.5V (LT 3020-1.5)
I
L
= 0
T
J
= 25°C
V
SHDN
= V
IN
V
SHDN
= 0V
Quiescent Current
GND Pin Current
Quiescent Current