LP2950 Datasheet, PDF (5/10 Pages) National Semiconductor (TI) – Series of Adjustable Micropower Voltage Regulators

CORPORATION
LP2950 / LP2951
TYPICAL PERFORMANCE CHARACTERISTICS
QUIESCENT CURRENT
10
1
0.1
0.01
0.1
1.0
10
LOAD CURRENT (mA)
100
1D-22
INPUT CURRENT
120
5V OUTPUT
110
100
R_L = 50Ω
90
80
70
60
50
40
30
20
10
0
0123456789
INPUT VOLTAGE (VOLTS)
10
1D-25
DROPOUT
CHARACTERISTICS
6
5V OUTPUT
5
4
R_L = 50kΩ
3
R_L = 50Ω
2
1
0
0123456
INPUT VOLTAGE (VOLTS)
1D-23
OUTPUT VOLTAGE vs
TEMPERATURE OF 3
REPRESENTATIVE UNITS
5.06
5V OUTPUT
5.04
5.02
5.0
4.98
0.2%
4.96
4.94
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (˚C)
1D-26
SHORT CIRCUIT CURRENT
170
160
150
140
130
120
110
100
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (˚C)
1D-28
DROPOUT VOLTAGE
600
500
400
I_L = 100mA
300
100
50
I_L = 100µA
0
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (˚C)
1D-29
QUIESCENT CURRENT
120
5V OUTPUT
110
100
90
V_IN = 6V
80
I_L = 100µA
70
60
50
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (˚C)
1D-31
QUIESCENT CURRENT
10
5V OUTPUT
9
V_IN = 6V
I_L = 100mA
8
7
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (˚C)
1D-32
INPUT CURRENT
250
5V OUTPUT
225
200
R_L = 50kΩ
175
150
125
100
∞ ^RL ⁼
75
50
25
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (VOLTS)
1D-24
QUIESCENT CURRENT
160
5V OUTPUT
140
120
100
I_L = 1mA
80
I_L = 0
60
40
20
0
012345678
INPUT VOLTAGE (VOLTS)
1D-27
DROPOUT VOLTAGE
500
400
300
200
T_J = 25˚C
100
0
100µA
1mA
10mA
OUTPUT CURRENT
100mA
1D-30
QUIESCENT CURRENT
8
5V OUTPUT
7
6
5
4
I_L = 100mA
3
2
1
0
012345678
INPUT VOLTAGE (V)
1D-33
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