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Story Box-ID: 176149

LINEAR TECHNOLOGY GmbH Oskar-Messter-Straße 24 85737 Ismaning, Germany http://www.linear.com
Contact Doug Dickinson +1 408-432-1900 ext. 2233
Company logo of LINEAR TECHNOLOGY GmbH
LINEAR TECHNOLOGY GmbH

Monolithischer USB-Linear-Akkulader mit wirkungsgradstarken Aufwärts/Abwärts- und Abwärtsreglern

(PresseBox) (Milpitas, California, )
Linear Technology Corporation präsentiert den LTC3558, eine wirkungsgradstarke Multifunktions-Power-Management-Lösung für Handgeräte.
Der LTC3558 enthält einen autonomen Li-Ion/Li-Polymer-Akkulader und zwei wirkungsgradstarke Synchronregler - einen Aufwärts/Abwärts- und einen Abwärtsregler; der Chip besitzt ein flaches, nur 3mm x 3mm großes QFN-Gehäuse. Der Linearregler-Akkulader kann beim Betrieb an einem Netzadapter bis zu 950mA und beim Betrieb an einer USB-Schnittstelle bis zu 500mA Ausgangsstrom liefern. Die autonome Betriebsweise des LTC3558 vereinfacht das Design und macht einen externen Mikroprozessor zum Beenden des Ladevorgangs entbehrlich. Beide Schaltregler sind für Eingangsspannungen innerhalb des Li-Ion/Polymer-Spannungsbereichs von 2,7V bis 4,2V ausgelegt und können Ausgangsströme bis zu jeweils 400mA liefern.

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