S007 Converter
The S007 converter is a 5- or 12-V input, nonisolated dc-dc converter designed for use in server and enterprise communications equipment. Offered in an SIP-style package, this unit significantly improves system motherboard real estate over traditional form-factor POL SIPs. Available in a 1.2- by 1.1- by 0.39-in. form factor, the S007 converter delivers an 8-A output current. The 12-V input converter provides a range of programmable output voltages from 1.0 to 5.0 V with a single resistor. MTBF falls within the range of 3.6 million and 5.4 million hours. In addition, the unit provides PowerGood and Enable signals. The converter aims at computer, communication, and storage OEMs. Pricing for the S007 converter starts at $8.50 each with an annual purchase of 1000 units.
Celestica Inc.
www.celestica.com/power; (888) 899-9998
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LSN D5 Series
With its 4.5- to 5.5-V input range, the LSN D5 series of SIP dc-dc converters accepts 5-V inputs and delivers 1.0-, 1.2-, 1.5-, 1.8-, 2.0-, 2.5-, and 3.3-V outputs fully rated at 10 A. The units require no external I/O filtering to achieve either specified noise levels or FCC-compliant radiated/conducted emissions. They're designed with on-board I/O capacitors fully rated to handle the required input ripple current. The LSN D5's SIP measures 2.0 by 0.5 by 0.34 in. and can be configured in either vertical or horizontal orientations. The vertical model occupies 0.7 in.2, while the latter measures only 0.34 in. high. The units offer tight accuracy of ±1% and high efficiency between 89% and 96%. Full power is guaranteed to 65°C with no supplemental airflow. The LSN D5 converter's power density is achieved with a fully synchronous, fixed-frequency (300-kHz) buck topology. Pricing starts at $9.95 each in OEM quantities.
Datel Inc.
www.datel.com; (800) 233-2765
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PMA Family
The PMA family of surface-mountable dc-dc regulators offers 1.2- and 5-V outputs. The 3.3-VIN/2.5-VOUT and 5-VIN/3.3-VOUT versions are rated for an output of 6 to 8 A. All other models can deliver up to 12 A. The units operate from 3.3-, 5-, or 12-V dc inputs. Thanks to efficient thermal transference, the high-reliability devices offer an MTBF of over 12 million hours. The units' construction also minimizes the need for external cooling components. The modules, which are up to 95% efficient, feature integrated input filtering, I/O synchronization, remote control, output voltage trimming, and output sensing. Built on ceramic substrates, PMA series modules are housed in compact, transfer-molded packages. They can operate from -30°C to 85°C with limited airflow. PMA converters run $13.90 each for a full-featured version or $12.00 each with limited filtering, both in OEM quantities.
Ericsson Power Modules
www.ericsson.com/powermodules; +46-8-568 69620
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SIS12V Series
Power-One's SIS12V series dc-dc converters provide POL conversion of a single 5-V input into a regulated low output voltage with up to 12 A of output current. Output voltage ranges from 1.2 to 3.3 V, while efficiency is rated from 82% to 86%. Available in a through-hole mounting configuration, the units provide output overcurrent protection. In addition, the SIS12V converters feature remote on/off and output voltage trim functions. The trim feature lets users adjust each output voltage by ±10% from the nominal. A vertical mounting option helps save space. The converters are particularly suited for powering ASICs in a distributed power architecture. Output ripple and noise is 100 mV p-p maximum. The converters are designed for natural or forced convection cooling. They operate from -40°C to 55°C. The SIS12V POL converter costs $15.00 each in 1000-unit quantities.
Power-One
www.power-one.com; (978) 725-5974
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Austin SuperLynx
With its single output of 16 A, the Austin SuperLynx offers designers a cost-efficient open-frame design. It delivers output voltages from 0.9 to 3.3 V dc, with a full-load efficiency of 94% at 3.3 V. Input voltages range from 3.0 to 5.5 V dc. The module is available in a variety of voltages. A key characteristic is its tightly regulated outputs (typically ±1%). Additional features include remote on/off, overtemperature protection, and auto-reset output overcurrent protection. While the SMT version measures 1.3 by 0.53 by 0.326 in., the SIP version is 2.0 by 0.50 by 0.32 in. The converter's small footprint enables it to be located near the load. The converter operates from -40°C to 85°C. Austin SuperLynx costs $19.50 each in 1000-unit quantities.
Tyco Electronics
www.power.tycoelectronics.com; (800) 526-7819
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V7PC-10C Series
A 3.3-V input non-isolated dc-dc converter from Bel Fuse is designed to provide up to 10 A of output current. The V7PC-10C series comprises devices with output voltages ranging from 2.5 down to 1.0 V, including a 2.5-V unit that features 92% efficiency at full load. The units' high-efficiency design and robust thermal management features enable these SIP converters to provide 10 A of output current in the same footprint as competing products that deliver only 6 A. Less than one inch of pc-board real estate is occupied with the series. The converters operate to 70°C with no derating over a 3.0- to 3.6-V input range. Also, an optional remote sense pin is offered for applications demanding precision regulation of low output voltages. Pricing for the V7PC-10C series units starts at $9.75 each in 10,000-unit quantities.
Bel Fuse Inc.
www.belfuse.com; (201) 432-0463
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