Texas Instruments TPS5430, User Manual

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75
80
85
90
95
100
0 0.5 1 1.5 2 2.5 3 3.5
EFFICIENCY
vs
OUTPUT CURRENT
Efficiency-%
I - Output Current - A
O
V = 9 V
IN
V = 12 V
IN
V = 15 V
IN
V = 18 V
IN
V = 21 V
IN
Figure 2-2. TPS5431 Efficiency
The efficiency is lower at higher ambient temperatures, due to temperature variation in the drain-to-source
resistance of the MOSFETs.
2.3 Output Voltage Load Regulation
The load regulation for the TPS5430EVM-173 and TPS5431EVM-173 are shown in Figure 2-3 and Figure 2-4 .
-0.1
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.1
0 0.5 1 1.5 2 2.5 3
I - Output Current - A
O
OutputRegulation-%
LOAD REGULATION
vs
OUTPUT CURRENT
Figure 2-3. TPS5430 Load Regulation
www.ti.com Test Setup and Results
SLVU157A – MARCH 2006 – REVISED OCTOBER 2021
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