Infineon First Semiconductor Supplier to Offer "80 PLUS(R) Platinum" Compliant Computing Silver Box Reference Design

By Infineon Technologies, PRNE
Monday, April 25, 2011

NEUBIBERG, Germany, April 26, 2011 - Infineon Technologies has developed the first marketable silver box
reference design that enables PC and server power supply units to achieve up
to 92.35 percent efficiency, while significantly reducing the material costs.
Infineon's solution IFX90ATX300W is based on the latest generation of three
ICs (Integrated Circuits) and meets the industry's highest energy efficiency
standard: "80 PLUS(R) Platinum". Efficiency indicates what share of the power
drawn is actually used. The difference between power input and power output
is the power loss, which is converted into heat. High efficiency, therefore,
translates into a reduction in power consumption and lowering of electricity

Infineon's new solution uses the third generation of
Continuous-Conduction Mode-Power-Factor-Control ICs - ICE3PCS01G - providing
the highest efficiency available today for the power range of approximately
150 to 500 Watt typical of PC power supplies accompanied by the best
cost-performance ratio of the PFC stage. Infineon's second generation of half
bridge driver ICs - ICE2HS01G - improves the efficiency of LLC half bridge
converters with synchronous rectification by optimizing the interplay between
half bridge driver operation and synchronous rectification, hence preventing
unnecessary switching losses. In addition, Infineon's ICE2QR2280Z - a
quasi-resonant CoolSET(TM) Current Mode Controller with digital frequency
reduction - minimizes the switching losses in the auxiliary supply typically
taking the form of a fly back converter, thereby achieving high efficiency
especially in low load and standby mode.


Samples of the whole chip set and demo boards are now available to
qualified customers. Each IC is available in high-volume quantities.

Further information about the three components of the Infineon Silver Box
Solution IFX90ATX300W is available at .

Background information on "80 PLUS(R) certification"

"80 PLUS(R)" promotes the manufacture and use of energy-efficient power
supplies in desktop computers and servers. For "80 PLUS(R)" certification,
power supply units have to achieve at least 80 percent energy efficiency at
various load levels. Higher levels of efficiency is categorized into "80
PLUS(R) Bronze", "80 PLUS(R) Silver", "80 PLUS(R) Gold" and "80 PLUS(R)
Platinum". To acquire Platinum certification, a power supply has to achieve
efficiency of 89 percent at 100 percent load, 92 percent at 50 percent load
and 90 percent at 20 percent load.

About Infineon

Infineon Technologies offers semiconductor and system solutions
addressing three central challenges to modern society: energy efficiency,
mobility, and security.

David Ong of Infineon Technologies Asia Pacific, +65-6876-3070, at

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