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
TPS54140
SLVS889B –OCTOBER 2008 –REVISED SEPTEMBER 2013 www.ti.com
Figure 59. Input Ripple PSM Figure 60. Efficiency vs Load Current
Figure 61. Overall Loop Frequency Response Figure 62. Regulation vs Load Current
Figure 63. Regulation vs Input Voltage
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