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Product # MQHL-28-2R5S
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005898 Rev. 1
05/19/11
Page 1
MQHL-28-2R5S
Single Output
MQHL-28-2R5S-Y
-ES
28Vin 2.5Vout@20A
+VIN
INRTN
CASE
ENA1
SYNCOUT
SYNCIN
+VOUT
OUTRTN
-SNS
+SNS
TRIM
N/C
The MilQor series of high-reliability DC-DC converters
brings SynQor’s field proven high-efficiency synchronous
rectifier technology to the Military/Aerospace industry.
SynQor’s innovative QorSealTM packaging approach ensures
survivability in the most hostile environments. Compatible
with the industry standard format, these converters oper-
ate at a fixed frequency, have no opto-isolators, and follow
conservative component derating guidelines. They are
designed and manufactured to comply with a wide range of
military standards.
HigH Reliability DC-DC ConveRteR
Full PoweR oPeRation: -55C to +125C
Features
MQHL series converters (with MQHE filter) are designed to meet:
Specification Compliance
MQHL series converters are:
Design Process
MQHL series converters are qualified to:
Qualification Process
In-Line Manufacturing Process
DesigneD & ManufactureD in the usa
featuring Qorseal hi-rel asseMbly
Designed for reliability per NAVSO-P3641-A guidelines
Designed with components derated per:
— MIL-HDBK-1547A
— NAVSO P-3641A
MIL-STD-810F
— consistent with RTCA/D0-160E
SynQor’s First Article Qualification
— consistent with MIL-STD-883F
SynQor’s Long-Term Storage Survivability Qualification
SynQor’s on-going life test
AS9100 and ISO 9001:2000 certified facility
Full component traceability
Temperature cycling
Constant acceleration
24, 96, 160 hour burn-in
Three level temperature screening
MIL-HDBK-704-8 (A through F)
RTCA/DO-160 Section 16
MIL-STD-1275 for V
IN > 16V
DEF-STAN 61-5 (part 6)/5 for V
IN > 16V
MIL-STD-461 (C, D, E)
RTCA/DO-160 Section 22
Fixed switching frequency
No opto-isolators
Output over-voltage shutdown
Remote sense
Clock synchronization
Primary referenced enable
Continuous short circuit and overload protection
Input under-voltage and over-voltage shutdown
16-40V
16-50V
2.5V
20A
84% @ 10A / 80% @ 20A
Continuous Input
Transient Input
Output
Efficiency
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