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SC1650

Part Number	SC1650
Manufacturer	Semtech Corporation
Description	HIGH-VOLTAGE INVERTING DC-DC CONVERTER
Published	Apr 8, 2005
Detailed Description	HIGH-VOLTAGE INVERTING DC-DC CONVERTER January 29, 1998 SC1650 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtec...
Datasheet	SC1650 PDF File

Overview

HIGH-VOLTAGE INVERTING DC-DC CONVERTER January 29, 1998 SC1650 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.
semtech.
com DESCRIPTION The SC1650 is a high performance inverting DC-DC converter, designed to drive an external power switch to generate programmable negative voltages.
In the particularly suitable LCD bias contrast application, maximum efficiency of 90% can be achieved with low cost PNP bipolar transistor drivers.
The 4V to 24V input operation range allows the SC1650 to be powered directly by the battery pack in most batteryoperated applications for greater efficiency.
The output voltage can be scaled to -40V by two external resistors.
A pulse frequency modulation scheme is e...

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