LP38690-ADJ_16 Datasheet, PDF (6/27 Pages) Texas Instruments – 1-A Low Dropout CMOS Linear Regulator

LP38690-ADJ, LP38692-ADJ
SNVS323I – DECEMBER 2004 – REVISED FEBRUARY 2016
www.ti.com
6.6 Typical Characteristics
Unless otherwise specified: T_J = 25°C, C_IN = C_OUT = 10 µF, EN pin is tied to V_IN (LP38692-ADJ only), V_OUT = 1.25 V, V_IN = 2.7
V, I_LOAD = 10 mA.
1.2
C_OUT = 1 PF
1.0
0.8
0.6
0.4
0.2
0.0
10
100
1k
10k
100k
FREQUENCY (Hz)
Figure 1. Noise vs Frequency
1.5
C_OUT = 100 PF
1.0
0.5
0.0
10
100
1k
10k
100k
FREQUENCY (Hz)
Figure 3. Noise vs Frequency
70
60
50
40
30
20 VIN (DC) = 3.25V
V_IN (AC) = 1V(p-p)
10
C_OUT = 100 PF
0
10
100
1k
10k
FREQUENCY (Hz)
100k
Figure 5. Ripple Rejection
1.0
C_OUT = 10 PF
0.8
0.6
0.4
0.2
0.0
10
100
1k
10k
100k
FREQUENCY (Hz)
Figure 2. Noise vs Frequency
70
60
50
40
30
V_IN (DC) = 3.25V
20 _{VIN (AC) = 1V(p-p)}
C_OUT = 10 PF
10
0
10
100
1k
10k
FREQUENCY (Hz)
Figure 4. Ripple Rejection
70
60
100k
50
40
30
20
V_IN (DC) = 3.25V
V_IN (AC) = 1V(p-p)
10 ^COUT ^{= 1 PF}
0
10
100
1k
10k
100k
FREQUENCY (Hz)
Figure 6. Ripple Rejection
6
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