DS_E48SB12020_05222008
5
ELECTRICAL CHARACTERISTICS CURVES
Figure 9:
Output voltage response to step-change in load
current (50%-75%-50% of Io, max; di/dt = 0.1A/µs). Load cap:
10µF, tantalum capacitor and 1µF ceramic capacitor. Top Trace:
Vout (200mV/div, 200us/div), Bottom Trace: Iout (10A/div).
Scope measurement 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.
Figure
10:
Output voltage response to step-change in load
current (50%-75%-50% of Io,max; di/dt=1A/µs). Load cap:
10uF, tantalum capacitor and 1µF ceramic capacitor. Top Trace:
Vout (200mV/div, 200us/div), Bottom Trace: Iout (10A/div).
Scope measurement 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.
Figure 11:
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
μ
H. Capacitor Cs offset
possible battery impedance. Measure current as shown below