SQ24S04120 Datasheet, PDF (1/70 Pages) Power-One – SQ24 Series DC-DC Converter Data Sheet 18-36 VDC Input; Standard Outputs from 1-12 VDC

SQ24 Series DC-DC Converter Data Sheet
18-36 VDC Input; Standard Outputs from 1-12 VDC
The SemiQ™ Family of dc-dc converters from provides a
high efficiency single output in a size that is only 60% of
industry-standard quarter-bricks, while preserving the
same pinout and functionality.
In high temperature environments, for output voltages
ranging from 3.3 V to 1.0 V, the thermal performance of
SemiQ™ converters exceeds that of most competitors' 20-
30 A quarter-bricks. This is accomplished through the use
of patent pending circuit, 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 heat sinks 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 product with extremely high reliability.
Operating from an 18-36 V input, the SQ24 Series
converters of the SemiQ™ Family provide any standard
output voltage from 12 V down to 1.0 V. Outputs can be
trimmed from –20% to +10% of the nominal output voltage
(±10% for output voltages 1.2 V and 1.0 V), thus providing
outstanding design flexibility.
With a standard pinout and trim equations, the SQ24
Series converters are perfect drop-in replacements for
existing 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
improvement over other available converters because of
the SQ24 Series’ optimized thermal efficiency.
Applications
 Telecommunications
 Data communications
 Wireless
 Servers
SQ24T and SQ24S Converters
Features
 RoHS lead-free solder and lead-solder-exempted
products are available
 Delivers up to 15 A (50 W)
 Available in through-hole and SM packages
 Low weight: 0.53 oz (15 g)
 Low profile: 0.274” (6.96 mm)
 Extremely small footprint: 0.896” x 2.30” (2.06 in²)
 Outputs available in 12.0, 8.0, 6.0, 5.0, 3.3, 2.5, 2.0,
1.8, 1.5, 1.2 and 1.0 V
 High efficiency – no heat sink required
 On-board input differential LC-filter
 Extremely low output and input ripple
 Start-up into pre-biased output
 No minimum load required
 Meets Basic Insulation requirements of EN60950
 Fixed-frequency operation
 Fully protected
 Remote output sense
 Output voltage trim range: +10%/−20% (except 1.2 V
and 1.0 V outputs with trim range ±10%) with industry-
standard trim equations
 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 60950-1/CSA 22.2 No. 60950-1-07 Second
Edition, IEC 60950-1: 2005, and EN 60950-1:2006
 Meets conducted emissions requirements of FCC
Class B and EN 55022 Class B with external filter
 All materials meet UL94, V-0 flammability rating
MCD10159 Rev. 1.2, 20-Apr-12
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