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7 Performance Data and Typical Characteristic Curves
Figure 7-1
through
Figure 7-8
performance data can be affected by measurement techniques and environmental variables, these curves are
presented for reference and may differ from actual field measurements.
7.1 Efficiency
95
V = 12 V
I
V = 8 V
I
90
85
80
75
70
65
60
55
50
0
1
I
LOAD
Figure 7-1. Efficiency vs Load
7.2 Line and Load Regulation
1.062
1.06
1.058
V = 22 V
I
1.056
1.054
1.052
1.05
1.048
0
1
I
LOAD
Figure 7-3. Output Voltage vs Load
SLVU433A – FEBRUARY 2011 – REVISED JANUARY 2022
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present typical performance curves for the TPS53128EVM-620. Because actual
V = 22 V
I
V = 8 V-22 V,
I
V
= 1.05 V,
OUT1
I
= 0 A-4 A
OUT1
2
3
4
- Load Current - A
V = 8 V-22 V,
I
V
= 1.05 V,
OUT1
I
= 0 A-4 A
OUT1
V = 12 V
I
V = 8 V
I
2
3
4
- Load Current - A
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Performance Data and Typical Characteristic Curves
95
90
85
80
V = 8 V
I
75
70
65
60
55
50
5
0
1
I
LOAD
Figure 7-2. Efficiency vs Load
1.825
1.82
1.815
1.81
1.805
1.8
1.795
0
0.5
1
5
I
LOAD
Figure 7-4. Output Voltage vs Load
TPS53128 Buck Controller Evaluation Module User's Guide
V = 22 V
V = 12 V
I
I
V = 8 V-22 V,
I
V
= 1.8 V,
OUT2
I
= 0 A-4 A
OUT2
2
3
4
- Load Current - A
V = 8 V-22 V,
I
V
= 1.8 V,
OUT2
I
= 0 A-4 A
OUT2
V = 22 V
I
V = 12 V
I
V = 8 V
I
1.5
2
2.5
3
3.5
4
- Load Current - A
5
4.5
11
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