Texas Instruments TPS54202EVM-716, User Manual

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Output Current (A)
Ef
fiecie
n
cy
(%)
0.001 0.01 0.1 1 3
0
10
20
30
40
50
60
70
80
90
100
D002
V
IN
= 24 V, V
OUT
= 5 V
V
IN
= 12 V, V
OUT
= 5 V
Output Current (A)
Ef
fiecie
n
cy
(%)
0 0.5 1 1.5 2
0
10
20
30
40
50
60
70
80
90
100
D001
V
IN
= 24 V, V
OUT
= 5 V
V
IN
= 12 V, V
OUT
= 5 V
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Test Setup and Results
5 SLVUAP3 – April 2016
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TPS54202EVM-716 2-A Regulator Evaluation Module
2.2 Efficiency
The efficiency of this EVM peaks at a load current of about 0.5 A – 1 A, and then decreases as the load
current increases towards full load.
Figure 1 shows the efficiency for the TPS54202EVM-716 at an
ambient temperature of 25°C.
Figure 1. TPS54202EVM-716 Efficiency
Figure 2 shows the efficiency for the TPS54202EVM-716 on a semi-log scale to better show light load
efficiency. The ambient temperature is 25°C.
Figure 2. TPS54202EVM-716 Low Current Efficiency
The efficiency may be lower at higher ambient temperatures, due to temperature variation in the drain-to-
source resistance of the internal MOSFET.