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Story Box-ID: 48768

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

Rauscharmer 600mA-LED-Treiber für Handys bietet 92% Wirkungsgrad

(PresseBox) (Milpitas, California (USA), )
Linear Technology Corporation präsentiert den LTC3217, einen wirkungsgradstarken 1x/1.5x/2x-Multimode-Ladungspumpen-LED-Treiber mit 850kHz Schaltfrequenz zur Ansteuerung mehrerer Hochstrom-LEDs in Handy-Kamera-Anwendungen. Der neue Wandler, der mit einer konstanten Schaltfrequenz arbeitet und dadurch rauscharm ist, kann bis zu vier LEDs mit einem Gesamtausgangsstrom bis 600mA ansteuern. Der Shutdown-Modus und die Ausgangsstroeme werden über zwei Logikeingänge gewählt. Der Eingangsspannungsbereich des LTC3217 beträgt 2,9V bis 4,5V und wurde für den Betrieb an einer Einzelzellen-Li-Ion-Batterie optimiert. Beim Betrieb an einer Li-Ion-Batterie (3,6V Nennspannung) wird ein hoher Wirkungsgrad von 92% erzielt, der zu einer längeren Batteriebetriebsdauer führt. An externen Bauteilen sind nur vier kleine Kondensatoren und zwei Widerstände
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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.