Datasheet

Output Voltage Regulation
2-5
Test Setup and Results
2.4 Output Voltage Regulation
The output voltage load regulation of the SLVP215 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.
1.245
1.247
1.249
1.251
1.253
1.255
01 234
– Output Voltage – V
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
I
O
– Output Current – A
V
O
1.247
1.248
1.249
1.25
1.251
1.252
1.253
34 56
V
I
– Input Voltage – V
I
O
= 0 A
I
O
= 1.5 A
I
O
= 3 A
– Output Voltage – V
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
V
O
Figure 2–4. Load Regulation
Figure 2–5. Line Regulation
2.5 Load Transients
The SLVP215 response to load transients is shown in Figure 2–6 and
Figure 2–7. The current step in Figure 2–6 is 0 to 2.25 A, while the current step
in Figure 2–7 is –1.5 A to 1.5 A (sinking to sourcing). Total peak-to-peak
voltage variation is as shown, including ripple and noise on the output.
– (AC) 50 mV/div
– 1 A/div
V
O
I
O
Time Scale 25 µs/div
– (AC) 50 mV/div
– 1 A/div
V
O
I
O
Time Scale 100 µs/div
Figure 2–6. Source-Sink Current
Transient Response
Figure 2–7. Load Transient Response