SQM48T25010-NAAP datasheet, PDF

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SQM48T25010-NAAP: DescriptionDC DC CONVERTER; CategoryPower/power management; File Size403KB，30 Pages; ManufacturerBel; Websitehttp://www.belfuse.com

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SQM48T25010-NAAP Overview

DC DC CONVERTER

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SemiQ

SQM48 Series Data Sheet

Family 25A DC-DC Converters

The new

25A SemiQ™ Family

of DC-DC converters provide

a high-efficiency single output in a size that is only 60% of

industry-standard quarter-bricks, while preserving the same

pinout and functionality.

The

25A SQM48 Series

converters of the

SemiQ™ Family

provide thermal performance in high temperature environ-

ments that exceeds most competitors' 25 A quarter-bricks.

This is accomplished through the use of patent pending cir-

cuit, packaging and processing techniques to achieve ultra-

high efficiency, excellent thermal management and a very

low body profile.

Low body profile and the preclusion of heatsinks minimize

airflow shadowing, thus enhancing cooling for downstream

devices. The use of 100% automation for assembly, coupled

with advanced electric and thermal design, results in a prod-

uct with extremely high reliability.

Operating from a 36-75 V input, the

25A SQM48 Series

converters provide any standard output voltage from 2.5 V

down to 1.2 V. Outputs can be trimmed from –20% to +10%

of the nominal output voltage (±10% for output voltage 1.2

V), thus providing outstanding design flexibility.

With a standard pinout and trim equations, the

SQM48

Series

converters are perfect drop-in replacements for exist-

ing 25 A quarter-brick designs. Inclusion of this converter in

new designs can result in significant board space and cost

savings. The device is also available in a surface mount

package.

In both cases the designer can expect reliability improve-

ment over other available converters because of the

SQM48

Series’

optimized thermal efficiency.

SQM48T and SQM48S Converters

Features



RoHS lead-free solder and lead-solder-exempted

products are available

Delivers up to 25 A (62.5 W)

Industry-standard quarter-brick pinout

Extremely small footprint: 0.896” x 2.30” (2.06 in

40% smaller than conventional quarter-bricks

Higher current capability at elevated temperatures

than most competitors' 25 A quarter-bricks

On-board input differential LC-filter for the lowest input

ripple current in industry

Outputs available in 2.5, 2.0, 1.8, 1.5, and 1.2 V

High efficiency – no heatsink required

Start-up into pre-biased output

No minimum load required

Available in through-hole and SM packages

Low profile: 0.28” (7.1 mm)

Light weight: 0.66 oz (18.5 g)

Meets Basic Insulation requirements of EN60950

Withstands 100 V input transient for 100 ms

Fixed-frequency operation

Fully protected

Remote output sense

Output voltage trim range: +10%/−20% with Industry-

standard trim equations (except 1.2 V output)

High reliability: MTBF of 3.4 million hours, calculated

per Telcordia TR-332, Method I Case 1

Positive or negative logic ON/OFF option

UL 60950 recognized in US and Canada and DEMKO

certified per IEC/EN 60950 (pending)

Meets conducted emissions requirements of FCC

Class B and EN 55022 Class B with external filter

All materials meet UL94, V-0 flammability rating

Applications



Telecommunications

Data communications

Wireless

Servers



MCD10085 Rev. 1.1, 08-Jul-10

Page 1 of 30

www.power-one.com

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