Filter
Top Products
DS_S36SE05003_07312008
5
ELECTRICAL CHARACTERISTICS CURVES
Figure 11: Input Terminal Ripple Current, i
c
, at full rated output
current and nominal input voltage with 12µH source impedance and
33µF electrolytic capacitor (50mA/div, 2us/div)
Figure 12: Input reflected ripple current, i
s
, through a 12µH source
inductor at nominal input voltage and rated load current (20
mA/div, 2us/div)
Figure 13: Output voltage noise and ripple measurement test setup
Figure 14: Output voltage ripple at nominal input voltage and rated load
current (Io=3A) (50 mV/div, 5us/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
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0
LOAD CURRENT (A)
OUTPUT VOLTAGE (V)
Figure 15: Output voltage vs. load current showing typical current
limit curves and converter shutdown points
StripCopper
Vo(-)
Vo(+)
10u
1u
SCOPE RESISTIV
E
LOAD