Datasheet

0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10
Output Current (A)
Efficiency (%)
V
IN
= 3.3 V
V
IN
= 5 V
G003
0
10
20
30
40
50
60
70
80
90
100
0 1 2 3 4 5 6 7
Output Current (A)
Efficiency (%)
V
IN
= 3.3 V
V
IN
= 5 V
G002
www.ti.com Test Setup and Results
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 TPS54719EVM-152 at an
ambient temperature of 25°C.
Figure 1. TPS54719EVM-152 Efficiency
Figure 2 shows the efficiency for the TPS54719EVM-152 in a semi-log format to emphasize the efficiency
at lower output currents. The ambient temperature is 25°C.
Figure 2. TPS54719EVM-152 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.
5
SLVU732–June 2012 TPS54719EVM-152, 7-A, SWIFT™ Regulator Evaluation Module
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