Datasheet

DS_Q48SQ12033_09272013
6
ELECTRICAL CHARACTERISTICS CURVES
StripCopper
Vo(-)
Vo(+)
10u 1u
SCOPE RESISTIVE
LOAD
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.
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.0
4 8 12 16 20 24 28 32 36 40 44
OUTPUT CURRENT(A)
OUTPUT VOLTAGE(V)
Figure 14: Output voltage ripple at nominal input voltage and
rated load current (Io=33A)(30 mV/div, 2us/div)
Load capacitance: 1µF ceramic capacitor and 10µF tantalum
capacitor. Bandwidth: 20 MHz.
Figure 15: Output voltage vs. load current at nominal input
voltage showing typical current limit curves and converter
shutdown points.