LP2950_15 Datasheet, PDF (11/32 Pages) Texas Instruments – Adjustable Micropower Voltage Regulators with Shutdown

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Typical Characteristics (continued)
100
90
80 I_L = 50 mA
70
V_IN = 6 V
C_L = 1 µF
60
50
40
I_L = 100 mA
30
20
10
11.E0+01
11.E00+02 1.1Ek+03 1.1E0+k04 1.1E0+00k5
f – Frequency – Hz
1.E1+M06
Figure 25. Output Impedance vs Frequency
400
350
300
250
200
150
100
50
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
T_A – Temperature – °C
Figure 27. LP2951 Divider Resistance vs Temperature
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
-40 -25 -10 5 20 35 50 65 80 95 110 125
T_A – Temperature – °C
Figure 29. Shutdown Threshold Voltage (On to Off) vs
Temperature
LP2950, LP2951
SLVS582I – APRIL 2006 – REVISED NOVEMBER 2014
6
5
4
C_L = 200 µF
3
2
C_L = 1 µF
1
C_L = 3.3 µF
0
1.E10+01
11.E0+002
1.1Ek+03
1.1E0+k04
f – Frequency – Hz
11.0E0+k05
Figure 26. LP2951 Output Noise vs Frequency
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
-40 -25 -10 5 20 35 50 65 80 95 110 125
T_A – Temperature – °C
Figure 28. Shutdown Threshold Voltage (Off to On) vs
Temperature
6
5
4
3
2
1
0
-1
-2
0
5
10
15
20
25
30
V_IN – Input Voltage – V
Figure 30. Line Regulation vs Input Voltage
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