TPS54383, TPS54386
www.ti.com
SLUS774B–AUGUST 2007–REVISED OCTOBER 2007
1.005
1.004
1.003
1.005
1.004
1.003
V
= 9.6 V
IN
V
= 9.6 V
IN
1.002
1.001
1.002
1.001
V
= 12.0 V
IN
V
= 13.2 V
IN
1.000
0.999
1.000
0.999
V
= 5.0 V
(V)
V
= 3.3 V
OUT
OUT
V
0.998
0.997
0.998
0.997
V
= 12.0 V
IN
V
= 13.2 V
V
(V)
IN
IN
IN
9.6
9.6
12.0
13.2
12.0
13.2
0.996
0.996
0.995
0.995
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.5
1.0
1.5
2.0
2.5
3.0
I
- Load Current - A
I
OUT
- Load Current - A
OUT
Figure 43. 5.0-V Output Voltage vs. Load Current
Figure 44. 3.3-V Output Voltage vs. Load Current
80
60
40
20
0
180
135
90
45
0
-20
-40
-45
-90
Gain
Phase
5.0 V
3.3 V
-60
-80
-135
-180
1 k
10 k
f - Frequency -Hz
100 k
300 k
Figure 45. Example 1 Loop Response
Copyright © 2007, Texas Instruments Incorporated
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