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SC1652

Part Number	SC1652
Manufacturer	Semtech Corporation
Description	MICROPOWER INVERTING DC-DC CONVERTER
Published	Apr 8, 2005
Detailed Description	MICROPOWER INVERTING DC-DC CONVERTER January 29, 1998 SC1652 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech....
Datasheet	SC1652 PDF File

Overview

MICROPOWER INVERTING DC-DC CONVERTER January 29, 1998 SC1652 TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.
semtech.
com DESCRIPTION The SC1652 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, efficiency of 87% can be achieved with low cost PNP bipolar transistor drivers.
The output voltage can be scaled to -40V by two external resistors.
A pulse frequency modulation scheme is employed to maintain high efficiency conversion under wide input voltage ranges.
Quiescent current is about 80µA and can be reduced to 0.
7µA in shutdown mode.
With a swi...

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