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Semtech controller suits telecom, networking systems

Posted: 13 Jan 2005 ?? ?Print Version ?Bookmark and Share

Keywords:semtech? sc2441? step-down controller?

Semtech Corp., a supplier of analog and mixed-signal semiconductors for communications, portable devices, computers, and industrial equipment, announced recently the availability of a very low input voltage, two-phase synchronous step-down controller with an integrated step-up converter.

The new SC2441 is capable of generating three output voltages to meet the multi-output power requirements in most telecommunications and networking systems, said Semtech. This dual-phase, step-down controller can be configured to supply two individually controlled and regulated 20A outputs, 180 degrees out-of-phase or, alternatively, the two phases can be interleaved into one low-ripple 40A output. Furthermore, the product's integrated boost step-up switching regulator offers an additional output or can be used to generate a bias supply to drive the gates of MOSFETs at low input voltage conditions. As a result, no separate gate supply is required, lowering cost and space requirements while simplifying the design.

"The SC2441 controller is a unique power controller for delivering the very low voltage, high current demands of the latest submicron ICs used in networking and telecom systems," commented Ven Shan, Director of Marketing for Semtech's Networking and Industrial Power.




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