DC to DC Power Supplies (Converters)
DC/DC Converters suit automated PCB assembly methods.
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Press Release Summary:
With height of 0.43 in., non-isolated point-of-load SMT C-class converters are offered in 8 surface-mounted versions, for applications such as workstations, servers, and storage systems. Units offer single programmable output voltages from 0.9-5.0 V and employ open-frame single-board construction. Fixed-frequency switching maximizes conversion efficiency. Converters have no minimum load requirement and can sink as well as source current.
Original Press Release:
Surface-Mounted DC/DC Converters Are Low Profile and Support Cost-Sensitive Applications
Complement existing family of through-hole mounted products to give developers optimized choices for all major applications
Auto-placeable modules include 40A output models with height of just 0.43in/10.8mm
Framingham, MA, November 24, 2004 --- Artesyn Technologies (Nasdaq:ATSN) has added eight surface-mounted versions to its C-class family of non-isolated point-of-load (POL) DC/DC converters optimized for cost-sensitive applications such as workstations, servers and storage systems. Offering single programmable output voltages from 0.9 to 5.0V, the converters are ideal for OEMs employing automated PCB assembly methods, and designing for compact size. Moreover, the range includes options delivering output currents to 40A, providing power densities that are believed to be unmatched in this market segment.
Known as the SMT C-class, these new low-cost DC/DC converters employ an open-frame single-board construction to minimize cost, weight and thermal management issues, and use fixed-frequency switching technology to maximize conversion efficiency. Each converter features a wide-range adjustable output - enabling designers to accommodate various semiconductor supply voltages with the same unit - which is preset to the required value by a single external resistor.
The SMT06C is the smallest of the new POL converters, and can handle output currents up to 6A. It measures just 1.2 x 0.53 inches (30.5 x 13.5 mm), and has an above-board profile of 0.47 inches (11.8 mm). Developers can choose from two variants with nominal input voltages of either 5 or 12VDC. The 5V input model has a typical conversion efficiency of 89% and provides an output that is trimmable from 0.9 to 3.3V. The 12V input model offers even higher conversion efficiency - typically 91% - and an exceptionally wide output trim range, spanning 0.9 to 5.0V.
Artesyn's footprint-compatible SMT15C and SMT20C converters handle output currents of up to 15A or 20A respectively. The modules incorporate a power stage heatsink, but are still extremely compact. They have a 1.2 x 1.1 inches (30.5 x 27.9mm) footprint, and an above-board height of 0.46 inches (11.6mm). There are two variants available with nominal input voltages of 5VDC and 12VDC. The 5V input models provide an output that is trimmable from 0.9 to 3.3V; the 15A version has a typical conversion efficiency of 89%, while the 20A version has a typical efficiency of 87%. Both the 12V input models have a typical conversion efficiency of 91%, and an output trim range of 0.9 to 5.0V.
The footprint-compatible SMT30C and SMT40C converters can handle output currents as high as 30A and 40A respectively, using a dual phase switching topology to minimize input and output ripple. Measuring 2.28 x 1.45 inches (57.9 x 36.8mm), they have an above-board height of 0.43 inches (10.8mm). The converters have a nominal input voltage of 12V, and offer an output that is trimmable from 0.9 to 5.0V. The 30A converter has a typical conversion efficiency of 91%, while the 40A model has a typical efficiency of 92%. These very high current modules additionally feature remote sense capabilities, incorporate over-temperature protection, and allow current sharing between parallel modules.
All eight POL converters in Artesyn's SMT C-class offer a remote on/off facility and a 'power good' output signal. The converters have no minimum load requirement, and are capable of sinking as well as sourcing current, for termination applications. They feature input undervoltage lockout, and are fully protected against overcurrent and short-circuit conditions. All eight types have an operating temperature range of 0 to +80°C ambient, and carry a full set of international safety approvals, including EN60950 and UL/cUL60950. Pricing for 10,000-piece quantities starts at US$5.50 for the 6A part, with a standard lead time of stock to 6-8 weeks.
The new SMT introductions are electrically identical to the existing SIL C-class series of vertical and horizontal through-hole mounted products, and round-out Artesyn's range of general-purpose POL DC/DC modules to give developers optimized choices for all major applications. Options include a choice of input voltages spanning telecom and industrial/IT levels, programmable output voltages that meet all common low voltage semiconductor requirements - in a wide spread of current ratings - and through-hole or surface-mounted, in variants optimized for either lowest cost or highest performance.
For further information about Artesyn's new SMT C-class POL converters, please visit: http://artesyn.com/powergroup/new_smt_cclass_launch.htm
