Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com • PS SQ100-48-1.8 Rev2 3-14-02
Technical Specification
SQ100-48-1.8, SQ100-48-1.8N 48Vin 1.8Vout 25A
Description
The SQ family of high power density, high efficiency
DC/DC converters deliver up to 25A in an industry
standard quarter brick footprint. They are targeted
specifically at the telecommunication, industrial
electronics, mobile telecommunication and distributed
power markets. With a wide input voltage range of 36-
75V they are available with output voltages of either
1.5, 1.8, 2.5, 3.3 or 5 Volts. All models feature an
input filter, input undervoltage lockout, output
overvoltage and overtemperature protection, output
current limiting and short circuit protection. These
converters are available either in a package that is
fully enclosed with a six-sided metal shield or an
alternative, open-frame construction. In both cases the
aluminum heat spreader design achieves very efficient
heat transfer with no hot spots. The use of patented
Flat Transformer technology and other patented
design concepts facilitate very low temperature rise.
The use of highly derated power devices help to
achieve high reliability, high performance and offer a
low cost solution to systems designers requiring
maximum power in small footprints.
Applications
• Telecommunications
• Data Communications
• Wireless Communications
• Networking Gear
• Servers, Switches and Data Storage
• Semiconductor Test Equipment
• Distributed Power Architecture
Features
• Delivers up to 25A in a quarter brick
• High power density up to 90W/inch3
• High efficiency Synchronous topology
• Unique Flat Transformer Technology
• No airflow or heat sink required
• No minImum load required
• Low profile of only 0.34 inch
• 1.5V, 1.8V, 2.5V, 3.3V or 5V output models
• Wide input operating range 36-75V
• -40°C to +100°C ambient operation
• Input undervoltage lockout
• Output overvoltage protection
• Output current limit and short circuit protection
• Remote On/Off pin (Negative logic
also available)
• Output adjustment +/-10% range
• Output remote sense feature
• 1500V, 10M input-to-output isolation
• Enclosed construction with heat spreader for
low temperature rise
• Also available in an open-frame construction
• UL 60950 recognized, TUV EN60950 and
CSA C22.2 No. 60950-00 Certified and CE
marked
• Meets conducted limits of FCC Class B and
CEI IEC61204-3 Class B with external filter
• MTBF of 750,000 hours @ 50°C
(MIL-HDBK-217F)