LP2950 Datasheet, PDF (6/14 Pages) National Semiconductor (TI) – Series of Adjustable Micropower Voltage Regulators

LP2950/2951
Typical Performance Characteristics
Quiescent Current
10
1
0.1
0.01
0.1
1
10
150
LOAD CURRENT (mA)
Input Current
160
150
140
130
R_L = 50Ω
120
110
100
90
80
70
60
50
40
30
20
10
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (VOLTS)
Dropout Characteristics
6
5
4
R_L = 50kΩ
3
R_L = 50Ω
2
1
0
0 12345 6
INPUT VOLTAGE (VOLTS)
Output Voltage vs.
Temperature of 3
Representative Units
5.06
5.04
5.02
5.0
4.98
4.96
0.2%
4.94
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (°C)
Micrel
Input Current
250
225
200
175
R_L = 50kΩ
150
125
100
R_L = ∞
75
50
25
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (VOLTS)
Ground Current
320
280
240
200
160
120
I_L = 1 mA
I_L = 0
80
40
0
0 12 3 45 678
INPUT VOLTAGE (VOLTS)
Quiescent Current
240
220
V_IN = 6V
I_L = 100 µA
200
180
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (°C)
Ground Current
16
12
V_IN = 6V
I_L = 100 mA
8
4
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (°C)
Ground Current
16
14
12
I_L = 100 mA
10
8
6
4
2
0
0 12 3 45 678
INPUT VOLTAGE (V)
Short Circuit Current
170
160
150
140
130
120
110
100
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (°C)
Drop-out Voltage
600
I_L = 100 mA
500
400
300
100
50
I_L = 100 µA
0
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (°C)
Drop-out Voltage
500
400
300
200
T_J = 25 °C
100
0
100 µA 1 mA 10 mA 100 mA
OUTPUT CURRENT
3-40
February 1999