LP38690_15 Datasheet, PDF (7/31 Pages) Texas Instruments – LP38690, LP38692 1-A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors

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LP38690, LP38692
SNVS322L – DECEMBER 2004 – REVISED MARCH 2015
Typical Performance Characteristics (continued)
Unless otherwise specified: T_J = 25°C, C_IN = C_OUT = 10 µF, EN pin is tied to V_IN (LP38692 only), V_OUT = 1.8 V, V_IN = V_OUT + 1
V, I_L = 10 mA.
60
60
50
50
40
40
30
20 ^{COUT = 100 2F}
V_IN(DC) = 5.3V
10 ^{VIN(AC) = 1V(p-p)}
V_OUT = 3.3V
0
10
100
1k
10k
FREQUENCY (Hz)
100k
30
C_OUT = 1 2F
20 _{VIN(DC) = 5.3V}
V_IN(AC) = 1V(p-p)
10 V_OUT = 3.3V
0
10
100
1k
10k
FREQUENCY (Hz)
100k
Figure 5. Ripple Rejection
V_OUT = 3.3V
20
C_OUT = 100 2F
10
V_OUT
0
-10
-20
5
V_IN
4
3
200 2s/DIV
Figure 7. Line Transient Response
V_OUT = 3.3V
100
C_OUT = 1 2F
50
V_OUT
0
-50
-100
5
V_IN
4
3
100 2s/DIV
Figure 9. Line Transient Response
Figure 6. Ripple Rejection
V_OUT = 3.3V
100
C_OUT = 10 2F
50
V_OUT
0
-50
-100
5
V_IN
4
3
100 2s/DIV
Figure 8. Line Transient Response
100
50
0
V_OUT
-50
C_OUT = 100 2F
-100
1
I_LOAD
0.01
200 2s/DIV
Figure 10. Load Transient Response
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