PQ60120QEX25 Datasheet, PDF (8/13 Pages) SynQor Worldwide Headquarters – Quarter-brick DC/DC Converter

Technical Specification
Input: 35-75 V
Output: 12 V
Current: 25 A (300W)
Package: Quarter-brick
Figure 13: Input reflected ripple current, is, through a 4.7µH source
inductor, using a 100µF input capacitor, at nominal input voltage and
rated load current (10 mA/div). See Figure 11.
Figure 14: Output voltage ripple at nominal input voltage and rated
load current (20 mV/div). Load capacitance: 1µF ceramic capacitor
and 10µF tantalum capacitor. Bandwidth: 500 MHz. See Figure 11.
Figure 15: Output voltage response to step-change in input voltage
(50V to 100V in 200µs). Load cap: 470µF, 15 mW ESR tantalum capaci-
tor. Ch 1: Vout (500mV/div), Ch 2: Vin (20V/div), at zero load current.
OVP Shutdown
Figure 16: Load current (10A/div) as a function of time when the convert-
er attempts to turn on into a 10 mW short circuit. Bottom trace (10ms/div)
is an expansion of the on-time portion of the top trace (100ms/div).
Figure 17: Output voltage vs. load current showing typical current limit
curves and OVP shutdown point.
Product # PQ60120QEA25
Phone [phone]
www.synqor.com
Doc.# 005-2QE612J Rev. B
03/24/09
Page 8