PQ24033QGL25 Datasheet, PDF (6/13 Pages) SynQor Worldwide Headquarters – Quarter-brick DC/DC Converter

Technical Specification
Input: 18-36 V
Output: 3.3 V
Current: 25 A
Package: Quarter-brick
25
20
15
10
400 LFM (2.0 m/s)
5
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0
0
25
40
55
70
85
Ambient Air Temperature (ºC)
Figure 7: Maximum output power-derating curves vs. ambient air tem-
perature for airflow rates of 100 LFM through 400 LFM with air flow-
ing from input to output (nominal input voltage).
Semiconductor junction temperature is
within 1°C of surface temperature
Figure 8: Thermal plot of converter at 23 amp load current with 55°C
air flowing at the rate of 200 LFM. Air is flowing across the converter
from input to output (nominal input voltage).
Figure 9: Turn-on transient at full load (5 ms/div). Input voltage pre-
applied. Ch 1: Vout (1V/div). Ch 2: ON/OFF input (5V/div)
Figure 10: Turn-on transient at zero load (5 ms/div). Ch 1: Vout
(1V/div). Ch 2: ON/OFF input (5V/div).
Figure 11: Output voltage response to step-change in load current (50%-75%-
50%) of Iout(max): dI/dt = 0.16A/µs. Load cap: 10µF, 100 mΩ ESR tantalum
cap and 1µF ceramic cap. Ch 1: Vout (500mV/div), Ch 2: Iout (10A/div).
Figure 12: Output voltage response to step-change in load current (50%-
75%-50%) of Iout(max): dI/dt = 0.4A/µs. Load cap: 470µF, 30 mΩ ESR tan-
talum cap and 1µF ceramic cap. Ch 1: Vout (500mV/div), Ch 2: Iout (10A/div).
Product # PQ24033QGL25
Phone [phone]
www.synqor.com
Doc.# 005-2QL233D Rev. A 06/23/05
Page 6