SP6133_06 Datasheet, PDF (3/10 Pages) Sipex Corporation – Evaluation Board Manual

Efficiency vs Load Current
100
90
80
70
60
Vin=12V
50
Vout=3.3V
40
0.0
2.0
4.0
6.0
8.0
10.0
Load current (A)
Figure 1. Efficiency vs Load
Output Voltage vs Load Current
3.340
3.335
3.330
3.325
3.320
0.0
Vin=12V
Vout=3.3V
2.0
4.0
6.0
8.0 10.0
Load current (A)
Figure 2. Load Regulation
Vout (100mV/div)
Iout(5A/div)
Vin=12V
Vout=3.3V
Vout (200mV/div)
Iout (5A/div)
Vin=12V
Vout=3.3V
Figure 3. Load Step Response: 5->10A
Vin
Vout
SoftStart
Vin=12V
Vout=3.3V
Iout (5A/div)
Figure 5. Start-Up Response: No Load
Figure 4. Load Step Response: 0->10A
Vin
Vout
SoftStart
Iout(5A/div)
Vin=12V
Vout=3.3V
Figure 6. Start-Up Response: 5A Load
Vin
Vout
Vout
SoftStart
Vin=12V
Vout=3.3V
Iout(5A/div)
Vout
Figure 7. Start-Up Response: 10A Load
SoftStart
Vin=12V
Vout=3.3V
Ichoke(25A/div)
Figure 8. Output Load Short Circuit
Rev 3/30/06
SP6133 Evaluation Manual
Page 3 of 10
Copyright 2006 Sipex Corporation