Datasheet

Output Voltage Regulation
2-6
2.4 Output Voltage Regulation
The output voltage load regulation of the TPS54973EVM−017 is shown in
Figure 2−4, while the output voltage line regulation is shown in Figure 2−5.
Measurements are shown for an ambient temperature of 25°C
Figure 2−4. Load Regulation
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
I
O
− Output Current − A
− Output Voltage Change − %V
O
−0.5
−0.4
−0.3
−0.2
−0.1
0
0.1
0.2
0.3
0.4
0.5
012345678910
V
I
= 3.3 V
Figure 2−5. Line Regulation
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
V
I
− Input Voltage − V
− Output Voltage Change − %V
O
−0.5
−0.4
−0.3
−0.2
−0.1
0
0.1
0.2
0.3
0.4
0.5
3 3.2 3.4 3.6 3.8 4
I
O
= 0 A
I
O
= 9 A
I
O
= 4.5 A