Q48DR1R533NRFA Datasheet, PDF (7/14 Pages) Delta Electronics, Inc. – Delphi Series Q48DR, 87W-100W, Quarter Brick Dual Output, DC/DC Power Modules: 48V in, 1.5V and 3.3V, 15A out each channel

ELECTRICAL CHARACTERISTICS CURVES
Figure 17: Input Terminal Ripple Current-i_c, at full rated
output current and nominal input voltage with 12µH source
impedance and 33µF electrolytic capacitor (500 mA/div,
2us/div).
Figure 18: Input reflected ripple current-i_s, through a 12µH
source inductor at nominal input voltage and rated load current
(20 mA/div, 2us/div).
Vo(+)
Vo(-)
Copper Strip
10u
1u
SCOPE RESISTIV
LOAD
Figure 19: Output voltage noise and ripple measurement
test setup
Figure 20: Output voltage ripple at nominal input voltage and
rated load current (Iout1=Iout2=15A)(20 mV/div, 1us/div). Top
trace: Vout2(20mV/div), Bottom trace(20mV/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.
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DS_Q48DR1R533_03152007