LP38691-ADJ_16 Datasheet, PDF (8/27 Pages) Texas Instruments – 500-mA Low-Dropout CMOS Linear Regulators Stable

LP38691-ADJ, LP38693-ADJ, LP38691-ADJ-Q1, LP38693-ADJ-Q1
SNVS324K – JANUARY 2005 – REVISED JANUARY 2016
www.ti.com
Typical Characteristics (continued)
Unless otherwise specified: T_J = 25°C, C_IN = C_OUT = 10 µF, EN pin is tied to IN (LP38693-ADJ only), V_OUT = 1.25 V, V_IN =
V_OUT 1 V, I_LOAD = 10 mA.
V_OUT = 3.3V
100
C_OUT = 10 PF
V_OUT = 1.25V
100
C_OUT = 1 PF
50
V_OUT
0
50
V_OUT
0
-50
-50
-100
5
V_IN
4
-100
4
V_IN
3
2
3
100 Ps/DIV
1
40 Ps/DIV
Figure 11. Line Transient Response
V_OUT = 3.3V
100
C_OUT = 1 PF
50
V_OUT
0
-50
-100
5
V_IN
4
3
100 Ps/DIV
Figure 13. Line Transient Response
400
C_OUT = 1 PF
200
0
V_OUT
-200
-400
0.5
I_LOAD
0.01
10 Ps/DIV
Figure 12. Line Transient Response
200
C_OUT = 10 PF
100
0
V_OUT
-100
-200
0.5
I_LOAD
0.01
40 Ps/DIV
Figure 14. Load Transient Response
2.3
2.1
V_IN = 10V
1.9
1.7
1.5
V_IN = 6V
1.3
1.1
0.9
V_IN = 4V
0.7
0.5
-50 -25
0 25 50 75 100 125
TEMPERATURE (^oC)
Figure 15. Load Transient Response
Figure 16. EN Voltage vs Temperature
8
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