Q48SK12448NNFB datasheet(5/10 Pages) DELTA

5 / 10 page

DS_Q48SK12448NNFB_10222015

E-mail: dcdc@deltaww.com

http://www.deltaww.com/dcdc

ELECTRICAL CHARACTERISTICS CURVES

Figure 8: Output voltage response to step-change in load

current (75%-50% of full load; di/dt = 0.1A/µs). Load cap: 10µF,

tantalum capacitor ,1µF ceramic capacitor and 450uF Oscon

capacitor. Top Trace: Vout; 200mV/div; Bottom Trace: output

current: 20A/div, Time: 500us/div

Figure 9: Output voltage response to step-change in load

current (50%-75% of full load; di/dt = 0.1A/µs). Load cap: 10µF,

tantalum capacitor ,1µF ceramic capacitor and 450uF Oscon

capacitor. Top Trace: Vout; 200mV/div; Bottom Trace: output

current: 20A/div, Time: 500us /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 (LTEST) of 12 μH. Capacitor Cs offset

possible battery impedance. Measure current as shown above.

Figure 11: Input Terminal Ripple Current, ic, at max output

current and nominal input voltage with 12µH source impedance

and 100µF electrolytic capacitor (0.5 A/div，2us/div).

Q48SK12448NNFB データシート(PDF) 5 Page - Delta Electronics, Inc.