Datasheet
LT3050 Series
7
3050fa
GND Pin Current LT3050-5
GND Pin Current vs I
LOAD
SHDN Pin Threshold
INPUT VOLTAGE (V)
GND PIN CURRENT (mA)
2.50
1.50
1.75
2.00
2.25
1.25
3050 G07
0
0.25
0.50
0.75
1.00
0123456789101112
R
L
= 50, I
L
= 100mA
R
L
= 100, I
L
= 50mA
R
L
= 500, I
L
= 10mA
R
L
= 5k, I
L
= 1mA
I
LOAD
(mA)
GND PIN CURRENT (mA)
5.0
2.0
2.5
3.0
3.5
4.5
4.0
1.5
3050 G08
0
0.5
1.0
0102030405060708090100
V
IN
= 5.6V
V
OUT
= 5V
TEMPERATURE (°C)
SHDN PIN THRESHOLD (V)
1.5
0.4
0.5
0.6
0.7
0.9
1.0
1.1
1.2
1.3
1.4
0.8
0.3
3050 G09
0
0.1
0.2
–75 –50 0–25 25 50 75 100 125 150 175
I
L
= 1mA
OFF TO ON
ON TO OFF
Internal Current Limit Internal Current Limit
Internal Current Limit
vs Output Voltage
SHDN Pin Input Current SHDN Pin Input Current
ADJ Pin Bias Current
TYPICAL PERFORMANCE CHARACTERISTICS
T
J
= 25°C, unless otherwise noted.
TEMPERATURE (°C)
SHDN PIN INPUT CURRENT (µA)
3.0
1.0
2.0
2.5
1.5
0.5
3050 G10
0
–75 –50 –25 0 25 50 75 100 125 150 175
V
SHDN
= 45V
SHDN PIN VOLTAGE (V)
SHDN PIN INPUT CURRENT (µA)
2.0
0.6
1.2
1.4
1.6
1.8
0.8
1.0
0.2
0.4
3050 G11
0
0 1020304050
TEMPERATURE (°C)
ADJ PIN BIAS CURRENT (nA)
50
15
30
35
40
45
20
25
5
10
3050 G12
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
CURRENT LIMIT (mA)
350
100
200
250
300
150
50
3050 G13
0
–75 –50 –25 0 25 50 75 100 125 150 175
V
IN
= 12V
V
OUT
= 0V
INPUT/OUTPUT DIFFERENTIAL (V)
CURRENT LIMIT (mA)
250
50
100
125
150
175
200
225
75
25
3050 G14
0
0 5 10 15 20 25 30 35 40 45
T
J
= –55°C
T
J
= –40°C
T
J
= 25°C
T
J
= 125°C
CURRENT LIMIT
AT FAULT
THRESHOLD
OUTPUT VOLTAGE (V)
CURRENT LIMIT (mA)
225
50
100
125
150
175
200
75
25
3050 G15
0
0 5 10 15 20 25 30 35 40 45
T
J
= –55°C
T
J
= –40°C
T
J
= 25°C
T
J
= 125°C
V
IN
– V
OUT(NOMINAL)
= 1V
CURRENT LIMIT
AT FAULT
THRESHOLD