Q24T25033-NBA0G datasheet, PDF

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Q24T25033-NBA0G: DescriptionDC/DC converter 3.3V 83w; Categorysemiconductor Power management; File Size252KB，14 Pages; ManufacturerPower-One (bel); Websitehttps://belfuse.com/; Environmental Compliance

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DC/DC converter 3.3V 83w

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Q24T25033 DC-DC Converter Data Sheet

18-36 VDC Input; 3.3 VDC @ 25A Output

Description

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.



In telecommunications applications the

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 heat sinks minimize

airflow shadowing, thus enhancing cooling for downstream

devices. The use of 100% surface-mount technologies for

assembly, coupled with Power-One’s advanced electric and

thermal circuitry and packaging, results in a product with ex-

tremely high quality and reliability.

Q24T25033 Converter

Features



RoHS lead-free solder and lead-solder-exempted

products are available

Delivers up to 25 A

Higher current capability at 70 ºC than existing

quarter-brick and half-brick converters

High efficiency: 88.5% @ 25 A, 88.5% @ 12.5 A

Start-up into pre-biased output

No minimum load required

No heat sink required

Low profile: 0.28” [7.2 mm]

Low weight: 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]

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 tem-

perature and airflow rates for Q24T25033 conver-

ter mounted vertically with air flowing from pin 3 to

pin 1, MOSFET temperature



120C, Vin = 27 V.

Applications



Telecommunications

Data communications

Wireless

Servers

MCD10223 Rev. 1.0, 02-Sep-10

Page 1 of 14

www.power-one.com

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