Datasheet

2.2 Efficiency
Test Setup and Results www.ti.com
Table 4. EVM Connectors and Test Points (continued)
Reference Function
Designator
TP5 Output voltage test point at OUT connector
TP6 Test point between voltage divider network and R1. Used for loop response
measurements.
The TPS5430EVM-342 efficiency peaks at load current of about 0.8 A, and then decreases as the load
current increases towards full load. Figure 1 shows the efficiency for the TPS5430EVM-342 at an ambient
temperature of 25 ° C. The efficiency is lower at higher ambient temperatures, due to temperature variation
in the drain-to-source resistance of the MOSFETs.
Figure 1. Measured Efficiency, TPS5430
TPS5430EVM-342 2.25-A, Inverting Buck-Boost Regulator Evaluation Module4 SLVU243 – May 2008
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