Technical Specification
Input:
Output:
Current:
Package:
35-75 V
12 V
25 A
(300W)
Quarter-brick
Figure 7:
Turn-on transient at full load (resistive load) (10 ms/div).
Ch 1: Vout (5V/div)
Ch 2: ON/OFF input (5V/div)
Figure 8:
Turn-on transient at zero load (10 ms/div).
Ch 1: Vout (5V/div)
Ch 2: ON/OFF input (5V/div)
Figure 9:
Output voltage response to step-change in load current (50%-75%-
50% of Iout(max); dI/dt = 0.1A/µs). Load cap: 1uF ceramic and 10uF tanta-
lum capacitors. Top trace: Vout (500mV/div), Bottom trace: Iout (10A/div).
Figure 10:
Output voltage response to step-change in load current (50%-
75%-50% of Iout(max): dI/dt = 5A/µs). Load cap: 470µF, 15 mW ESR
tantalum capacitor. Top trace: Vout (500mV/div), Bottom trace: Iout (10A/
Figure 13
4.7
µ
H
source
impedance
Figure 12
Figure 14
i
S
V
SOURCE
i
C
DC/DC
Converter
1
µ
F
V
OUT
10 µF,
ceramic
100mW ESR
tantalum
capacitor
100 µF,
0.2W ESR
electrolytic
capacitor
capacitor
Figure 11:
Test set-up diagram showing measurement points for Input
Terminal Ripple Current (Figure 12), Input Reflected Ripple Current
(Figure 13) and Output Voltage Ripple (Figure 14).
Product # PQ60120QEA25
Phone 1-888-567-9596
Figure 12:
Input Terminal Ripple Current, ic, at full rated output
current and nominal input voltage with 4.7
µ
H source impedance and
100
µ
F electrolytic capacitor (100 mA/div). See Figure 11.
Doc.# 005-2QE612J Rev. B
03/24/09
Page 7
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