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SC4509

Part Number	SC4509
Manufacturer	Semtech Corporation
Description	Highly Integrated Step-Up Converter
Published	Nov 17, 2008
Detailed Description	POWER POWERMANAGEMENT MANAGEMENT Description SC4509 Highly Integrated Step-Up Converter for White LED Applications in M...
Datasheet	SC4509 PDF File

Overview

POWER POWERMANAGEMENT MANAGEMENT Description SC4509 Highly Integrated Step-Up Converter for White LED Applications in MLPD-W8-2x2 Features VIN range: 2.
7V — 10V Integrated Schottky diode 81% efﬁciency Requires only 4 external components Up to 20V of output voltage 30mA maximum LED current Open LED protection (OVP) 1.
2MHz PWM switching frequency Low feedback voltage (20OmV typical) Wide range of PWM dimming Drives up to 5 LEDs 500mA switch current limit 220nF output capacitor Available in 2mm x 2mm x 0.
75mm MLPD-W8 and SOT23-6 packages Packages are fully WEEE and RoHS compliant The SC4509 is a highly integrated step-up DC/DC converter targeted for white LED bac...

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