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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.
ambient temperature of 25°C.
100
90
80
70
60
50
40
30
20
10
0
0.0
Figure 2
shows the efficiency for the TPS54335AEVM-010 on a semi-log scale to better show light load
efficiency. The ambient temperature is 25°C.
100
90
80
70
60
50
40
30
20
10
0
0.001
The efficiency may be lower at higher ambient temperatures, due to temperature variation in the drain-to-
source resistance of the internal MOSFET.
SLVUB76 – July 2017
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Figure 1
V
= 12 V
IN
0.5
1.0
Figure 1. TPS54335AEVM-010 Efficiency
V
= 12 V
IN
V
= 24 V
IN
0.01
Figure 2. TPS54335AEVM-010 Low Current Efficiency
Copyright © 2017, Texas Instruments Incorporated
shows the efficiency for the TPS54335AEVM-010 at an
V
= 24 V
IN
1.5
2.0
Output Current - A
0.1
Output Current - A
TPS54335AEVM-010 3-A Regulator Evaluation Module
Test Setup and Results
2.5
3.0
C001
1
10
C002
5
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