LP5910_15_15 Datasheet, PDF (9/25 Pages) Texas Instruments – LP5910 Ultra-Low-Noise, 300-mA Linear Regulator for RF and Analog Circuits - Requires No Bypass Capacitor

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LP5910
SNVSA91A – SEPTEMBER 2015 – REVISED OCTOBER 2015
Typical Characteristics (continued)
Unless otherwise stated: V_OUT = 1.8 V, V_IN = V_OUT + 0.5 V, V_EN = V_IN, I_OUT = 1 mA, C_IN = 1 µF, C_OUT = 1 µF, T_J = 25°C.
250
250
225
V_IN = 3.3 V
V_IN = 1.3 V
225
V_IN = 3.3 V
V_IN = 2.3 V
200
200
175
175
150
150
125
125
100
100
75
75
50
50
25
25
0
0
50
100
150
200
250
300
I_OUT (mA)
D017
V_OUT = 0.8 V
0
0
50
100
150
200
250
300
I_OUT (mA)
D018
V_OUT = 1.8 V
Figure 17. I_GND vs I_OUT
250
225
V_IN = 3.3 V
V_IN = 2.8 V
200
175
150
125
100
75
50
25
0
0
50
100
150
200
250
I_OUT (mA)
V_OUT = 2.3 V
300
D019
300
250
200
150
100
50
0
0
Figure 18. I_GND vs I_OUT
V_OUT = 1.2 V
V_OUT = 1.8 V
V_OUT = 2.3 V
50
100
150
200
250
I_OUT (mA)
300
D020
Figure 19. I_GND vs I_OUT
Figure 20. Dropout Voltage vs I_OUT
2.5
2.5
120
12
2
2
1.5
1.5
1
1
0.5
0
-25
0
25
V_EN = V_IN
50
75 100
Time (µs)
V_OUT = 1.8 V
0.5
V_IN
V_OUT
0
125 150
D021
C_OUT = 1 µF
Figure 21. Turnon Time
100
8
80
4
60
0
40
-4
20
-8
I_OUT
V_OUT
0
-12
-20 -10 0 10 20 30 40 50 60 70 80
Time (µs)
D022
V_IN = 2.3 V
V_OUT = 1.8 V
C_OUT = 1 µF
I_OUT = 1 mA to 100 mA
t_RISE = 10 µs
Figure 22. Load Transient Response
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