LP3990_16 Datasheet, PDF (7/28 Pages) Texas Instruments – 150-mA Linear Voltage Regulator for Digital Applications

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LP3990
SNVS251J – MAY 2004 – REVISED SEPTEMBER 2014
6.8 Typical Performance Characteristics
Unless otherwise specified, C_IN = 1 µF ceramic, C_OUT = 0.47 µF ceramic, V_IN = V_OUT(NOM) + 1 V, T_A = 25°C, V_OUT(NOM) = 1.5 V;
V_EN = V_IN.
2.00
1.50
1.00
0.50
0.00
-0.50
-1.00
-1.50
-2.00
-40 -25 0 25 50 75 100 125
TEMPERATURE (°C)
80
70
60
50
40
30
20
10
0
0
T_J = 125°C
T_J = -40°C
T_J = 25°C
25 50 75 100 125 150
LOAD CURRENT (mA)
Figure 1. Output Voltage Change vs Temperature
100
90
80
70
60
T_J = 125°C
50
T_J = 25°C
40
30
T_J = -40°C
20
2 2.5 3 3.5 4 4.5 5 5.5 6
V_IN
I_LOAD = 0 mA
Figure 2. Ground Current vs Load Current
100
90
80
70
60
T_J = 125°C
50
T_J = 25°C
40
30
T_J = -40°C
20
2 2.5 3 3.5 4 4.5 5 5.5 6
V_IN
I_LOAD = 1 mA
Figure 3. Ground Current vs V_IN
100
90
80
T_J = 125°C
70
T_J = 25°C
60
T_J = -40°C
50
40
30
20
2 2.5 3 3.5 4 4.5 5 5.5 6
V_IN
I_LOAD = 150 mA
Figure 5. Ground Current vs V_IN
Figure 4. Ground Current vs V_IN
V_{IN =} 2.5V
800
600
400
200
0
TIME (100 2s/DIV)
Figure 6. Short Circuit Current
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