Datasheet

-60
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
Frequency-Hz
-180
-150
-120
-90
-60
-30
0
30
60
90
120
150
180
Gain-dB
10
100
1000 10000 100000 1000000
Phase-Deg
Phase
Gain
-0.05
-0.04
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
0.05
8 9 10 11 12 13 14 15 16 17
InputVoltage-V
Percent Regulation - %
Io=0A
Io=3A
Io=6A
0.00001
0.0001
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1 10
TrackInVoltage-V
OutputVoltage-V
0.00001
0.0001
0.001
0.01
0.1
1
10
VsenseVoltage-V
Vout
IdealVsense
Vsense
-0.05
-0.04
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
0.05
0 1 2 3 4 5 6 7 8
OutputCurrent- A
Vin=12V
PercentRegulation-%
V =12V,
V =3.3V,
Fsw=480kHz,
roomtemp,noairflow
IN
OUT
25
50
75
100
125
150
0 1 2 3 4 5 6
LoadCurrent- A
T -Maximum AmbientTemperature-°C
A
Tjmax=150°C,
noairflow
25
50
75
100
125
150
0 0.5 1 1.5 2 2.5 3 3.5 4
P -ICPowerDissipation-W
D
T -Maximum AmbientTemperature-°C
A
TPS54620
www.ti.com SLVS949C –MAY 2009– REVISED MAY 2011
CLOSED LOOP RESPONSE LINE REGULATION
Figure 45. Figure 46.
LOAD REGULATION TRACKING PERFORMANCE
Figure 47. Figure 48.
MAXIMUM AMBIENT TEMPERATURE MAXIMUM AMBIENT TEMPERATURE
vs vs
LOAD CURRENT IC POWER DISSIPATION
Figure 49. Figure 50.
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