TL720M05-Q1_16 Datasheet, PDF (7/25 Pages) Texas Instruments – Low-Dropout Voltage Regulator

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Typical Characteristics (continued)
800
TJ = 25°C
700
600
500
400
300
200
100
0
0 50 100 150 200 250 300 350 400 450 500
IO – Output Current – mA
Figure 7. Dropout Voltage vs Output Current
100
90
80
70
60
50
40
30
20
10
0
1.E1+001
VIN = 13.5 V
Load = 200 mA
COUT = 22 µF
1.1E0+002
1.E1+k03
1.1E0+k04
Frequency – Hz
11.E0+00k5
Figure 9. Power-Supply Ripple Rejection vs Frequency
Stable Region
TL720M05-Q1
SGLS380H – SEPTEMBER 2008 – REVISED JULY 2015
100
90
80
70
60
50
40
30
20
10
0
1.E1+001
VIN = 13.5 V
Load = 1 mA
COUT = 22 µF
1.1E0+002
1.E1+k03
1.1E0+k04
Frequency – Hz
11.E0+00k5
Figure 8. Power-Supply Ripple Rejection vs Frequency
100
90
80
70
60
50
40
30
20
10
0
1.E1+001
VIN = 13.5 V
Load = 400 mA
COUT = 22 µF
1.E10+0 2
1.E1+k03
1.1E0+k04
Frequency – Hz
11.E0+0k05
Figure 10. Power-Supply Ripple Rejection vs Frequency
Unstable Region
Stable Region
Load Capacitance (µF)
Figure 11. ESR Stability vs Load Current
Unstable Region
Load Capacitance (µF)
Figure 12. ESR Stability vs Load Capacitance
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