Datasheet

EFFICIENCY - Vin = 12 V
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1 10
Output Current - A
Efficiency - %
LOAD REGULATION -Vin = 12 V
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0 0.5 1 1.5 2 2.5
Output Current - A
Output Voltage Deviation - %
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Figure 2 shows the efficiency for the TPS54260EVM-597 at lower output currents between 0.001 A and
0.1 A at an ambient temperature of 25°C.
Figure 2. TPS54260EVM-597 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.
2.3 Output Voltage Load Regulation
The load regulation for the TPS54260EVM-597 is shown in Figure 3.
Figure 3. TPS54260EVM-597 Load Regulation
Measurements are given for an ambient temperature of 25°C.
5
SLVU372–March 2009 TPS54260EVM-597 2.5-A, SWIFT™ Regulator Evaluation Module
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