PQ60033EKX15 Datasheet, PDF (8/15 Pages) SynQor Worldwide Headquarters – Eighth-brick DC-DC Converter

Technical Specification
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
25
40
55
70
85
Ambient Air Temperature (ºC)
Figure 7: Maximum output power derating curves vs. ambient air
temperature for airflow rates of 100 LFM through 400 LFM with air flowing
across the converter from input to output (nominal input voltage).
Input: 35-75V
Output: 3.3V
Current: 15A
Part No.: PQ60033EKx15
Figure 8: Thermal plot of converter at 13.9A load current (46 W) 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 (resistive load) (10 ms/div). Load cap:
10 uF, 100 mΩ ESR tantalum capacitor and 1 uF ceramic capacitor. Input
voltage pre-applied. Ch 1: Vout (1V/div), Ch 2: ON/OFF input (5 V/div).
Figure 10: Turn-on transient at zero load (10 ms/div). Load cap: 10 µF,
100 mΩ ESR tantalum capacitor and 1 µF ceramic capacitor. Ch 1: Vout
(1V/div), Ch 2: ON/OFF input (5 V/div).
Figure 11: Output voltage response to step-change in load current (50%-
Figure 12: Output voltage response to step-change in load current
75%-50% of Iout(max); dI/dt = 0.1A/µs). Load cap: 15µF tantalum cap and
(50%-75%-50% of Iout(max): dI/dt = 1A/µs). Load cap: 470µF, 30 mΩ
1µF ceramic cap. Ch 1: Vout (200mV/div), Ch 2: Iout (5A/div).
ESR tantalum cap and 1µF ceramic cap. Ch 1: Vout (200mV/div), Ch 2:
Iout (5A/div).
Product # PQ60033EKx15
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www.synqor.com
Doc.# 005-0005111 Rev. B
06/17/09
Page 8