Q24S25033-PAA0G
| Model | Q24S25033-PAA0G |
| Description | DC-DC Regulated Power Supply Module, 1 Output, Hybrid |
| PDF file | Total 14 pages (File size: 392K) |
| Chip Manufacturer | BEL |
Q24T25033
18-36 Vdc Input, 25 A, 3.3 Vdc Output
The
Q24T25033
through-hole mounted DC/DC converter
offers unprecedented performance in the industry-standard
quarter brick format. This is accomplished through the use of
patent pending circuit and packaging techniques to achieve
ultra-high efficiency, excellent thermal performance and a
very low body profile.
Data Sheet
&&
In telecommunications applications the
Q
Family
25 A con-
verters provide thermal performance that far exceeds all
quarter bricks and is comparable even to existing half-bricks.
Low body profile and the preclusion of heatsinks minimize
airflow shadowing, thus enhancing cooling for downstream
devices. The use of 100% surface-mount technologies for
assembly, coupled with di/dt’s advanced electric and thermal
circuitry and packaging, results in a product with extremely
high quality and reliability.
30
25
Q24T25033 Converter
Features
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Delivers up to 25 A
Higher current capability at 70ºC than existing
quarter brick and half brick converters
High efficiency: 88.5% @ 25 A, 88.5% @ 12.5 A
Starts-up into pre-biased output
No minimum load required
No heatsink required
Lowest profile in industry: 0.28” [7.2 mm]
Lowest weight in industry: 1 oz [28 g] typical
Industry-standard footprint: 1.45” x 2.30”
Industry-standard pinout
Meets Basic Insulation Requirements of EN60950
On-board LC input filter
Fixed frequency operation
Fully protected
Remote output sense
Output voltage trim range: +10%/-20%
Trim resistor via industry-standard equations
High reliability: MTBF 2.6 million hours, calculated per
Telcordia TR-332, Method I Case 1
Positive or negative logic ON/OFF option
UL 60950 recognized in U.S. & Canada, and DEMKO
certified per IEC/EN 60950
Meets conducted emissions requirements of FCC
Class B and EN55022 Class B with external filter
All materials meet UL94, V-0 flammability rating
Load Current [Adc]
20
15
10
5
0
20
30
40
50
60
70
80
90
500 LFM (2.5 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
30 LFM (0.15 m/s)
Ambient Temperature [°C]
Fig. 1:
Available load current vs. ambient air temperature and air-
flow rates for Q24T25033 converter mounted vertically with air flow-
ing from pin 3 to pin 1, MOSFET temperature
≤
120°C, Vin = 27 V.
Applications
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Telecommunications
Datacommunications
Wireless
Servers
Q24T25033 FDS Ver 2 05-01-03
USA Toll Free 866 WOW-didt
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