Datasheet

100 1k 10k 100k 1M
f-Frequency-Hz
-60
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
Gain-dB
-180
-150
-120
-90
-60
-30
0
30
60
90
120
150
180
Phase-deg
Gain
Phase
V =12V,
Load=1.1
IN
W
8 10 12 14 16
V -InputVoltage-V
I
-0.05
-0.04
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
0.05
PercentDeviation-%
I =1 A
O
I =1.5 A
O
I =3 A
O
0 0.5 1 1.5 2 2.5 3
I -OutputCurrent- A
O
V =8V
IN
-0.05
-0.04
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
0.05
LoadRegulation-%
V =10V
IN
V =12V
IN
V =15V
IN
V =17V
IN
0.000001
0.00001
0.0001
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1 10
TrackInVoltage-V
0.000001
0.00001
0.0001
0.001
0.01
0.1
1
10
OutputVoltage-V
VsenseVoltage-V
Vout
IdealVsense
Vsense
25
50
75
100
125
150
T - Maximum Ambient Temperature - °C
A
0 0.5 1 1.5 2 2.5 3 3.5
IC Power Dissipation - W
T = Room Temperature
no airflow
A
0 0.5 1 1.5 2 2.5 3
LoadCurrent- A
T -JunctionTemperature-°C
J
25
30
35
40
45
50
55
60
V =12V,
V =3.3V,
Fsw=480kHz,
T =Room Temperature
noairflow
IN
OUT
A
TPS54320
SLVS982A –AUGUST 2010–REVISED SEPTEMBER 2010 www.ti.com
CLOSED LOOP RESPONSE LINE REGULATION
Figure 47. Figure 48.
LOAD REGULATION TRACKING PERFORMANCE
Figure 49. Figure 50.
MAXIMUM AMBIENT TEMPERATURE MAXIMUM AMBIENT TEMPERATURE
vs vs
LOAD CURRENT IC POWER DISSIPATION
Figure 51. Figure 52.
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