LP2951-33-Q1 Datasheet, PDF (8/30 Pages) Texas Instruments – Adjustable Micropower Voltage Regulators With Shutdown

LP2951-33-Q1, LP2951-50-Q1
SLVSAW6E – JUNE 2011 – REVISED NOVEMBER 2014
Typical Characteristics (continued)
400
350
300
250
200
150
100
50
0
0.0001
0.001
0.01
0.1
IO – Output Current – A
Figure 13. Dropout Voltage vs Output Current
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. Feedback Bias Current vs Temperature
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
VOL – Output Low Voltage – V
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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
TA – Temperature – °C
Figure 14. Minimum Operating Voltage 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. ERROR Comparator Output vs Input Voltage
Input Voltage
2 V/div
Output Voltage
80 mV/div
Figure 17. ERROR Comparator Sink Current vs Output Low
Voltage
Figure 18. Line Transient Response vs Time
8
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