Datasheet

70
75
80
85
90
95
100
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Efficiency - %
Output Current - A
Vin = 6V
Vin = 9V
Vin = 12V
C001
V
OUT
= 15 V, fsw = 750 kHz
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Table 3. EVM Connectors and Test points (continued)
Reference Designator Function
TP1 PGOOD test point for power good output voltage indicator
TP2 HDRV test point for high-side gate-drive voltage
TP3 V
OUT
test point at V
OUT
connector
TP4 GND test point at V
OUT
connector
TP5 SW test point for switch node voltage
TP6 Test point between voltage divider network and output used for loop response measurements.
TP7 LDRV test point for low-side gate-drive voltage
TP8 V
IN
test point at V
IN
connector
TP9 GND test point at V
IN
2.2 Efficiency
The efficiency of this EVM peaks at a load current of about 2 A with V
IN
= 12 V, and then decreases as the
load current increases towards maximum load. Figure 2 shows the efficiency for the EVM brought to
current limit for each input voltage. Dotted-line efficiency data was measured with Wurth Elektroniks
744311330. Measurements are taken at ambient temperature of 25°C. The efficiency may be lower at
higher ambient temperatures due to temperature variation in the drain-to-source resistance of the selected
external MOSFETs.
Figure 2. Efficiency Versus Load Current
6
Using the TPS43061 Boost Evaluation Module (EVM) SLVU799A–November 2012–Revised March 2013
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