Datasheet

Output Voltage Regulation
2-5
Test Setup and Results
2.4 Output Voltage Regulation
The output voltage load regulation of the TPS54380EVM–001 is shown in
Figure 2–4, while the output voltage line regulation is shown in Figure 2–5.
Measurements are given for an ambient temperature of 25°C.
Figure 2–4. Load Regulation
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
0.5
0 0.5 1 1.5 2 2.5 3 3.5
– Output Voltage Change – %
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
I
O
– Output Current – A
V
O
V
I
= 5 V
V
I
= 3.3 V
Figure 2–5. Line Regulation
–0.5
–0.4
–0.3
–0.2
–0.1
0
0.1
0.2
0.3
0.4
0.5
3456
I
O
= 0 A
I
O
= 3 A
I
O
= 1.5 A
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
V
I
– Input Voltage – V
– Output Voltage Change – %V
O