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Wide Input, 36 to 75V,
Regulated, Single Outputs
24 to 66W DC DC Converters
-40°C to +85°C Operation
Industry Standard 1/8th Brick SMD Pinout
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| Part Number |
Input Range (VDC) |
Vout (VDC) |
Iout (A) |
Trim Range |
Power (W) |
| SQM48S20012 |
18.0~36.0VDC
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1.2 VDC |
20A |
1.1 - 1.3V |
24W |
| SQM48S20015 |
18.0~36.0VDC
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1.5 VDC |
20A |
1.2 - 1.6V |
30W |
| SQM48S20018 |
18.0~36.0VDC
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1.8 VDC |
20A |
1.5 - 1.9V |
36W |
| SQM48S20025 |
18.0~36.0VDC
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2.5 VDC |
20A |
2.0 - 2.7V |
50W |
| SQM48S20033 |
18.0~36.0VDC
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3.3 VDC |
20A |
2.7 - 3.6V |
66W |
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RoHS lead-free solder and lead-solder-exempted products are available
Delivers up to 20 A
Industry-standard, quarter-brick pinout
Outputs available in 3.3, 2.5, 2.0,1.8, 1.5, and 1.2 V
Available in through-hole and SM packages
Low profile: 0.28” (7.1 mm)
Low weight: 0.66 oz (18.5 g)
Onboard input differential LC-filter for the low input ripple current
Start-up into pre-biased output
No minimum load required
Meets Basic insulation requirements of EN60950
Withstands 100 V input transient for 100 ms
Fixed-frequency operation
Fully protected
Remote output sense
Positive or negative logic ON/OFF option
Output voltage trim range: +10%/−20% with industry-standard trim equations (except 1.2 V output)
High reliability: MTBF = 3.4 million hours, calculated per Telcordia TR-332, Method I Case 1
UL60950 recognized in US and Canada and DEMKO certified per IEC/EN60950
Designed to meet Class B conducted emissions per FCC and EN55022 when used with external filter
All materials meet UL94, V-0 flammability rating |
The 20A 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 20A SQM48 Series converters of the SemiQ™ Family provide thermal performance in high temperature environments that exceeds most competitors' 20-25 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 electronic circuits and thermal design, results in a product with extremely high reliability.
Operating from a 36-75 V input, the 20A SQM48 Series converters provide any standard output voltage from 3.3 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 existing 20 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 improvement over other available converters because of the SQM48 Series’ optimized thermal efficiency. |
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