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ZD-02084 Rev. 1.2
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SSQE48T25015 DC-DC Converter Data Sheet
36-75 VDC Input; 1.5 VDC, 25 A Output
Data Sheet
Applications
Telecommunications
Data communications
Wireless communications
Servers, workstations
Benefits
High efficiency – no heat sink required
Cost effective, single board design
Small size and low-profile
Features
RoHS lead-free solder and lead-solder-exempted
products are available
Industry-standard DOSA pinout
Output: 1.5 V at 25 A
On-board input differential LC-filter
Start-up into pre-biased load
No minimum load required
Weight: 0.44 oz [12.3 g]
Meets Basic Insulation requirements of EN60950
Withstands 100 V input transient for 100 ms
Fixed-frequency operation
Hiccup overcurrent protection
Fully protected (OTP, OCP, OVP, UVLO)
Remote sense
Remote ON/OFF positive or negative logic option
Output voltage trim range: +10%/20% with
industry-standard trim equations
Low height of 0.374” (9.5mm)
Industry standard 1/16th brick footprint: 0.9” by 1.3”
High reliability: MTBF = 16.23 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
Description
The new SSQE48T25015 DC-DC converter is an open frame sixteenth-brick DC-DC converter that conforms to
the Distributed Open Standards Architecture (DOSA) specifications. The converter operates over an input voltage
range of 36 to 75 VDC, and provides a tightly regulated output voltage with an output current up to 25 A. The
output is fully isolated from the input and the converter meets Basic Insulation requirements permitting a positive
or negative output configuration.
The converter is constructed using a single-board approach with both planar and discrete magnetics. The
standard feature set includes remote On/Off (positive or negative logic), input undervoltage lockout, output
overvoltage, overcurrent, and short circuit protections, output voltage trim, and overtemperature shutdown with
hysteresis.
With standard pinout and trim equations and excellent thermal performance, the SSQE48T25015 converters can
replace in most cases existing eighth-brick converters. Inclusion of this converter in a new design can result in
significant board space and cost savings.