Input:

Input:

Output:

Output:

Current:

Current:

ackage:

18-36 V

18-36 V

3.3 V

3.3 V

25 A

(82.5W)

Quarter-brick

Quarter-brick

T

pecification

Product # PQ24033QGA25

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-2QG233D Rev. B

08/17/06

Page 6

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Ambient Air Temperature (ºC)

400 LFM (2.0 m/s)

300 LFM (1.5 m/s)

200 LFM (1.0 m/s)

100 LFM (0.5 m/s)

Figure 7: Maximum output power-derating curves vs. ambient air tem-

perature for airflow rates of 0 LFM through 400 LFM with air flowing

from pin 1 to pin 3 (nominal input voltage).

air flowing at the rate of 200 LFM. Air is flowing across the converter

from pin 1 to pin 3 (nominal input voltage).

Figure 9: Turn-on transient at full load (resistive load) (2 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 (2 ms/div).

Ch 1: Vout (1V/div)

Ch 2: ON/OFF input (5V/div)

50% of Iout(max); dI/dt = 0.1A/µs). Load cap: 10µF, 100 m

Ω

ESR tantalum capac-

itor and 1µF ceramic capacitor. Ch 1: Vout (100mV/div), Ch 2: Iout (10A/div).

50% of Iout(max): dI/dt = 5A/µs). Load cap: 470µF, 30 m

Ω

ESR tantalum

capacitor and 1µF ceramic cap. Ch 1: Vout (100mV/div), Ch 2: Iout (10A/div).

Semiconductor junction temperature is

within 1°C of surface temperature