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Story Box-ID: 47575

LINEAR TECHNOLOGY GmbH Oskar-Messter-Straße 24 85737 Ismaning, Germany http://www.linear.com
Contact Ralf Stegmann +49 7131 92340
Company logo of LINEAR TECHNOLOGY GmbH
LINEAR TECHNOLOGY GmbH

Single-Chip-DC/DC-Controller mit PolyPhase für die SUN-Prozessoren UltraSPARC® und SPARC®

(PresseBox) (Milpitas, CA, )
Die Linear Technology Corporation stellt den LTC3819 vor, einen synchronen PolyPhase® -Step-Down-Controller mit integrierten MOSFET-Treibern und einer 5-bit-Digitalschnittstelle on-board. Er ist dazu entwickelt worden, die neue Prozessorgeneration von Sun Microsystems mit Strom zu versorgen. Der LTC3819 bildet eine 45-A-Single-Chip-Lösung und integriert vier MOSFET-Treiber mit substanzieller Gate-Ansteuerungsfähigkeit. Mit dem PolyPhase-Betrieb minimiert er die Anforderungen an Eingangs- und Ausgangskondensatoren. Der LTC3819 hat zwei Bereiche auf dem Chip, die sehr präzise die Ausgangsleistung auf die Leistungsbauteile aufteilen. Diese Präzisions-Stromaufteilung schützt vor thermischen Belastungen, erhöht die Zuverlässigkeit der MOSFETs sowie der induktiven und kapazitiven Bauteile. Weiterhin wird dadurch das thermische Management erleichtert, es entstehen
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