LP38869_15 Datasheet, PDF (7/23 Pages) Texas Instruments – 1A FlexCap, Low-Dropout Linear Regulator with 0.75% Accuracy

LP38869
www.ti.com
SNVS877B – AUGUST 2012 – REVISED APRIL 2013
Typical Performance Characteristics (continued)
Unless otherwise specified: T_J = 25°C, V_IN = 5.0V, V_SHDN = V_IN, V_SET = 0.0V, V_OUT = 2.5V, SS = Open, C_IN = 1 µF, C_OUT = 1 µF
MLCC, I_OUT = 100mA
PSRR vs Frequency
Output Noise Density
100
10
90
80
70
1
60
50
40
30
100m
20
10
0
10m
1 10 100 1k 10k 100k 1M
FREQUENCY (Hz)
10
100
1k
10k 100k
FREQUENCY (Hz)
Figure 14.
Figure 15.
Output Noise vs. I_OUT
100
90
80
70
60
50
40
30
20
10
0
1m
10m
100m
1
OUTPUT CURRENT (A)
Figure 16.
500
400
300
200
100
0
-100
-200
-300
-400
-500
0
Output Noise
10 20 30 40 50
TIME (ms)
Figure 17.
Load Transient Response, V_IN = 5.0V
Load Transient Response, V_IN = 3.0V
Figure 18.
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Figure 19.
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