Datasheet

-0.3
0.2
-0.1
0
0.1
0.2
0.3
5 10 15 20
V - Input Voltage - V
IN
Output Voltage Deviation - %
25 30 35 40 45
V = 3.3V,
OUT
fsw = 600 kHz
I = 3.5A
OUT
-1
-0.8
-0.6
0.4
-0.2
0
0.2
0.4
0.6
1
0 0.5 1.0 1.5 2.0
I - Output Current - A
O
Output Voltage Deviation - %
2.5 3.0
0.8
3.5
V = 12V,
sw = 600 kHz
IN
V = 3.3V,
OUT
f
0
10
20
30
40
50
60
70
80
100
0 0.5 1.0 1.5 2.0
I - Output Current - A
O
Efficiency - %
2.5 3.0
90
3.5 4.0
6Vin
12Vin
24Vin
36Vin
42Vin
V = 5V, sw = 600 kHz
OUT
f
0
10
20
30
40
50
60
70
80
100
0.001 0.01
I - Output Current - A
O
Efficiency - %
0.1
90
1
V = 5V, sw = 600 kHz
OUT
f
6Vin
12Vin
24Vin
36Vin
42Vin
Test Setup and Results www.ti.com
Figure 4. Efficiency Versus Load Current Figure 5. Light Load Efficiency
2.3 Output Voltage Regulation
The load regulation for the EVM is shown in Figure 6. The line regulation for the EVM is shown in
Figure 7. Measurements are given for an ambient temperature of 25°C.
Figure 6. Regulation Versus Output Current Figure 7. Regulation Versus Input Voltage
6
Using the TPS54340 Step-Down Converter Evaluation Module SLVU794A–October 2012–Revised February 2013
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