Datasheet

DS_Q48SQ12033_09272013
5
ELECTRICAL CHARACTERISTICS CURVES
Figure 8: Output voltage response to step-change in load
current (75%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 100uF
Al-Electrolytic capacitor, 10µF tantalum capacitor and 1µF
ceramic capacitor. Top Trace: Vout; 100mV/div; Bottom Trace:
output current: 10A/div, Time: 200us/div
Figure 9: Output voltage response to step-change in load
current (50%-75% of Io, max; di/dt = 0.1A/µs). Load cap:
100uF Al-Electrolytic capacitor, 10µF tantalum capacitor and
1µF ceramic capacitor. Top Trace: Vout; 100mV/div; Bottom
Trace: output current: 10A/div, Time: 200us/div
Figure 10: Test set-up diagram showing measurement points
for Input Terminal Ripple Current and Input Reflected Ripple
Current.
Note: Measured input reflected-ripple current with a simulated
source Inductance (L
TEST
) of 12 μH. Capacitor Cs offset
possible battery impedance. Measure current as shown above.
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 (200 mA/div ， 2us/div).