Datasheet

Output Voltage Regulations
2-10
2.5 Output Voltage Regulations
The output voltage load regulation of the TPS54x80EVM-228 is shown in
Figure 2-10, while the output voltage line regulation is shown in Figure 2-11.
Measurements are given for an ambient temperature of 25°C.
Figure 2-10. Load Regulation
-0.20
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
V
O
= 1.8 V
V
O
= 1.2 V
V
O
= 0.9 V
V
I
= 3.3 V,
F
(SW)
= 700 kHz,
(% From V
O
at I
O
= 50% Imax)
Load Regulation - %
TPS54680EVM-228
LOAD REGULATION
vs
OUTPUT CURRENT
I
O
- Output Current - A
-0.20
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8
V
O
= 1.8 V
V
I
= 5 V,
F
(SW)
= 700 kHz,
(% From V
O
at I
O
= 50% Imax)
Load Regulation - %
TPS54680EVM/TPS54880EVM-228
LOAD REGULATION
vs
OUTPUT CURRENT
I
O
- Output Current - A
Figure 2-11. Line Regulation
-0.20
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
3 3.5 4 4.5 5 5.5 6
I
O
= 6 A
I
O
= 0 A
F
(SW)
= 700 kHz
Line Regulation - %
TPS54680EVM-228
LINE REGULATION
vs
INPUT VOLTAGE
V
I
= Input Voltage = V
-0.20
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
4 4.50 5 5.50 6
I
O
= 8 A
I
O
= 0 A
F
(SW)
= 700 kHz
Line Regulation - %
V
I
= Input Voltage = V
TPS54880EVM-228
LINE REGULATION
vs
INPUT VOLTAGE