LP2950 Datasheet, PDF (9/32 Pages) National Semiconductor (TI) – Series of Adjustable Micropower Voltage Regulators

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Typical Characteristics (continued)
LP2950, LP2951
SLVS582I – APRIL 2006 – REVISED NOVEMBER 2014
400
350
300
250
200
150
100
50
0
0.0001
0.001
0.01
0.1
I_O – Output Current – A
Figure 13. Dropout Voltage vs Dropout Current
2
1.95
1.9
1.85
1.8
1.75
1.7
1.65
1.6
-40 -25 -10 5 20 35 50 65 80 95 110 125
T_A – Temperature – °C
Figure 14. LP2951 Minimum Operating Voltage vs
Temperature
30
25
20
15
10
5
0
-5
-10
-15
-20
-55 -30
-5 20 45 70 95 120 145
T_A – Temperature – °C
Figure 15. LP2951 FEEDBACK Bias Current vs Temperature
8
7
50-kW resistor to
external 5-V supply
6
5
4
3
50-kW resistor
2
to V_OUT
1
0
0
1
2
3
4
5
6
7
8
V_IN – Input Voltage – V
Figure 16. LP2951 ERROR Comparator Output vs
Input Voltage
2
1.75
1.5
T_A = 125
1.25
1
T_A = 25
0.75
0.5
T_A = –40
0.25
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
V_OL – Output Low Voltage – V
Figure 17. LP2951 ERROR Comparator Sink Current vs
Output Low Voltage
Input Voltage
2 V/div
Output Voltage
80 mV/div
Figure 18. Line Transient Response vs Time
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