TPS54160A Datasheet, PDF (38/53 Pages) Texas Instruments – 1.5-A, 60-V, Step-Down SWIFT™ DC/DC Converter with Eco-mode™

TPS54160A
SLVSB56A – MAY 2012 – REVISED AUGUST 2012
VIN
IL
PH
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Figure 58. Input Ripple CCM
VIN
IL
PH
Figure 60. Input Ripple PSM
60
150
40
100
Phase
50
20
0
Gain
0
-50
-20
-40
100
1-10³
1-10⁴
f - Frequency - Hz
1-10⁵
-100
-150
1-10⁶
Figure 62. Overall Loop Frequency Response
Figure 59. Input Ripple DCM
95
V_I = 8 V
V_O = 3.3 V,
90
f_sw = 1200 kHz
85
80
75
V_I = 12 V
V_I = 16 V
70
65
60
55
50
0
0.25 0.50 0.75
1
1.25 1.5 1.75
2
I_L - Load Current - A
Figure 61. Efficiency vs Load Current
1.015
1.010
V_I = 12 V
1.005
1.000
0.995
0.990
0.985
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
Load Current - A
Figure 63. Regulation vs Load Current
38
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