ELECTRICAL CHARACTERISTICS CURVES
Figure 12: Input Terminal Ripple Current, ic, at full rated output current and nominal input voltage with 12µH source impedance and 47µF electrolytic capacitor (100 mA/div, 2us/div).
Figure 13: Input reflected ripple current, is, through a 12µH source inductor at nominal input voltage and rated load current (20 mA/div, 20us/div).
Vo(+)
Copper Strip
10u | 1u | SCOPE | RESISTIVE |
| LOAD | ||
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Figure 14: Output voltage noise and ripple measurement test | Figure 15: Output voltage ripple at nominal input voltage and |
setup. | rated load current (50 mV/div, 2us/div). Load capacitance: 1µF |
| ceramic capacitor and 10µF tantalum capacitor. Bandwidth: 20 |
| MHz. Scope measurements should be made using a BNC cable |
| (length shorter than 20 inches). Position the load between 51 |
| mm to 76 mm (2 inches to 3 inches) from the module. |
DS_E48SB12020_05222008
6
