Datasheet

10
1-10
3
-60
-40
0
20
40
60
-180
-120
-60
0
60
120
180
f - Frequency - Hz
Gain - dB
Phase -
o
1-10
4
1-10
5
1-10
6
-20
100
Gain
Phase
VIN=12 V
VOUT=3.3V
IOUT=2.5A
0
10
20
30
40
50
60
70
80
100
0.001 0.01
I - Output Current - A
O
Efficiency - %
0.1
90
VIN=12V
VOUT=3.3V
fsw=300kHz
3.3
3.32
3.34
3.36
3.38
3.4
0 1.5
I - Output Current - A
O
V - O
O
utput Voltage - V
3.0
VIN=12V
VOUT=3.3V
fsw=300kHz
1.00.5 2.52.0
3.3
3.32
3.34
3.36
3.38
3.4
10.8 12
I - Output Current - A
O
V -
O
Output Voltage - V
13.2
VIN=12V
VOUT=3.3V
fsw=300kHz
IOUT=1.5A
11.611.2 12.812.4
TPS54260
SLVSA86A –MARCH 2010–REVISED DECEMBER 2010 www.ti.com
Figure 58. Light Load Efficiency Figure 59. Overall Loop Frequency Response
Figure 60. Regulation vs Load Current Figure 61. Regulation vs Input Voltage
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