Datasheet

EVM Efficiency
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0 5 10 15 20 25 30 35
Load Current (A)
Efficiency
Vin = 4.5V Vin = 8V Vi n = 12V Vin = 15V
Power Loss
0
1
2
3
4
5
6
0 5 10 15 20 25 30 35
Load Current (A)
Power Loss (W)
Vin = 4.5V Vin = 8V Vi n = 12V Vin = 15V
www.ti.com Performance Data and Typical Characteristic Curves
7 Performance Data and Typical Characteristic Curves
Figure 4 through Figure 13 present typical performance curves for the TPS40322EVM-074. Since actual
performance data can be affected by measurement techniques and environmental variables, these curves
are presented for reference and may differ from actual field measurements.
7.1 Efficiency
Figure 4. TPS40322EVM-074EVM Efficiency,
(data measured from TP1 to TP3)
7.2 Power Loss
Figure 5. TPS40322EVM-074 Power Stage Power Loss,
(data measured from TP25 and TP27 to TP24 and TP26)
9
SLUU926–May 2012 Dual-Phase, Single-Output, Synchronous Buck Converter
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