35-75 V
5.0 V
Input:
Output:
Current:
Package:
30 A
Quarter-brick
Technical Specification
See Fig. 15
See Fig. 14
10 µH
source
See Fig. 16
impedance
iS
DC/DC
Converter
iC
VOUT
VSOURCE
1 µF
10 µF,
47 µF,
ceramic
capacitor
100m
W ESR
@1W
ESR
tantalum
electrolytic
capacitor
capacitor
Figure 13: Test set-up diagram showing measurement points for Input
Terminal Ripple Current (Figure 14), Input Reflected Ripple Current (Figure
15) and Output Voltage Ripple (Figure 16).
Figure 14: Input Terminal Ripple Current, i , at full rated output current
and nominal input voltage with 10µH source impedance and 47µF
electrolytic capacitor (200 mA/div). See Figure 13.
c
Figure 15: Input reflected ripple current, i , through a 10 µH source
inductor at nominal input voltage and rated load current (10 mA/div). See
Figure 13.
Figure 16: Output voltage ripple at nominal input voltage and rated load
current (50 mV/div). Load capacitance: 1µF ceramic capacitor and 10µF
tantalum capacitor. Bandwidth: 500 MHz. See Figure 13.
s
Figure 17: Output voltage vs. load current showing typical current limit
Figure 18: Load current (20A/div) as a function of time when the converter
curves and converter shutdown points.
attempts to turn on into a 1 mW short circuit. Top trace (2ms/div) is an
expansion of the on-time portion of the bottom trace.
Product # PQ60050QTA30
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2QT650C Rev. E
05/20/09
Page 7
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