Product category:
Power Supply ICs and Controllers
News Release from: Fairchild Semiconductor | Subject: FDS6298 and FDS6299S
Edited by the Electronicstalk Editorial
Team on 08 November 2005
Buck convertor chip set optimises
efficiency
Fairchild Semiconductor is introducing a synchronous buck convertor chip set designed specifically to optimise efficiency and space in notebooks using the latest IMVP specifications.
Fairchild Semiconductor is introducing a synchronous buck convertor chip set designed specifically to optimise efficiency and space in notebooks using the latest Intel Mobile Voltage Positioning (IMVP) specifications Utilising Fairchild's PowerTrench MOSFET technology, the high-side 'control' MOSFET (FDS6298) and the low-side 'synchronous' MOSFET (FDS6299S) form a chip set providing increased current density and improved efficiency in synchronous buck convertor applications
This article was originally published on Electronicstalk on 28 Feb 2001 at 8.00am (UK)
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In addition, the FDS6299S device's monolithic SyncFET technology eliminates the need for an external Schottky diode, resulting in board space savings and reduced assembly costs.
"Fairchild's PowerTrench technology supports a feature-set that results in high efficiency".
"In synchronous buck convertor applications, performance is usually benchmarked in terms of efficiency".
"Better efficiency usually translates to lower die temperature, improved reliability, and it also can be an indicator of improved electromagnetic compatibility, or EMI", said David Grey, Fairchild's Marketing Manager for Computing Solutions".
""Our technology also reduces the occurrence of high current spikes due to shoot-through, resulting in less ringing and radiated electromagnetic noise".
"Furthermore, by using an integrated SyncFET device in the matched pair, Fairchild's FDS6298/FDS6299S chip set reduces part count compared with solutions requiring an external Schottky diode".
This integrated chip set features a very low 'Miller' (qgd) charge for fast switching speeds, as well as a Qgd/Qgs ratio of less than 1 to limit the potential for cross-conduction losses.
In addition to Vcore designs, the fast-switching FDS6298 and the low on-resistance FDS6299S offer benefits as a matched pair that are well suited for high current point-of-load (POL) convertors in such applications as high-end communications equipment.
These products are available in a lead-free SO-8 package that meets or exceeds the requirements of the joint IPC/JEDEC standard J-STD-020B and are compliant with the European Union requirements now in effect.
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