S25 Datasheet, PDF (1/2 Pages) Microsemi Corporation – Silicon Power Rectifier

BTCPower TM Broadband TelCom Power, Inc.
Redefining “Current” Limits In Power Conversion
S25 Series
25W High Efficiency Low Power Bricks
Description
The S25 series of high efficiency, low power DC/DC
converters offer power levels that exceed other bricks with
similar footprint. With a wide input voltage range of 18-36 or
36-75V they are available with an output voltage of either
1.5, 1.8, 2.5, 3.3, or 5 Volts. All models feature an input filter,
input undervoltage lockout, overtemperature protection,
output current limiting and short circuit protection. The fully
enclosed, encapsulated construction aluminum heat
spreader design achieves very efficient heat transfer with no
hot spots. The use of patented design concepts facilitate
maximum power delivered with the highest efficiency up to
90%. The converters combine creative design concepts with
highly derated power devices to achieve very high reliability,
high performance and low cost solution to systems
designers that are challenged to maximize power and
minimize board space.
Features
• Delivers up to 25W in 1.2”x 2.0” format
• Synchronous rectification topology
• No airflow or heatsink required
• Low profile of only 0.35”
• 1.5V, 1.8V, 2.5V, 3.3V, 5V output modules
• -40°C to +85 °C ambient operation
• Meets Basic Insulation requirements of EN60950
• UL 60950 recognized, TUV EN60950, and CSA C22.2
No. 60950-00 Certified
• Meets conducted limits of FCC Class B and CEI
IEC61204-3 Class B with external filter
Applications
• Telecommunications
• Data Communications
• Wireless Communications
• Networking Gear
• Servers, Switches and Data Storage
• Semiconductor Test Equipment
• Distributed Power Architecture
Specification Summary
• 8A @ 1.5V, 8A @ 1.8V, 8A @ 2.5V, 7 A @ 3.3V, 5A @ 5 V
• Tightly output regulation, typical ±1%
• No minimum load required
• Ripple & Noise ( 20Mhz BW) 100 mv (pk-pk)
• Wide input operating range 18-36 or 36-75V
• On/Off pin control
• Output adjustment +/-10% range
• 1500V, 10M input-to-output isolation
• Enclosed construction with heat spreader for low
temperature rise
• Enclosed six-sided metal shield contruction for low
EMI/RFI
• Output overcurrent protection
• Over Temperature protection
• Input Under voltage protection
• MTBF of 4,500,000 hours @ 50°C ( Bellcore )
Broadband TelCom Power, Inc. – 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
Tel.: [phone] • Fax: [phone] • www.btcpower.com • Email: [e-mail] PB S25 Rev3 16-1-04