Datasheet

0.985
0.990
0.995
1.000
1.005
1.010
1.015
5 10 15 20
Regulation(%)
I =0.5 A
O
V -InputVoltage-V
I
0.985
0.990
0.995
1.000
1.005
1.010
1.015
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
LoadCurrent- A
Regulation(%)
V =12V
I
100
1-10
3
-40
-20
0
20
40
60
-150
-100
-50
0
50
100
150
f-Frequency-Hz
Gain-dB
Phase-
o
1-10
4
1-10
5
1-10
6
Gain
Phase
VIN
IL
PH
50
55
60
65
70
75
80
85
90
95
0 0.25 0.50 0.75 1 1.25 1.5 1.75 2
I -LoadCurrent- A
L
Efficiency-%
V =8V
I
V =12V
I
V =16V
I
V =3.3V,
f =1200kHz
O
sw
TPS54140A
SLVSB55B –MAY 2012–REVISED JANUARY 2014 www.ti.com
Figure 60. Input Ripple PSM Figure 61. Efficiency vs Load Current
Figure 62. Overall Loop Frequency Response Figure 63. Regulation vs Load Current
Figure 64. Regulation vs Input Voltage
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