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SC4509 - Highly Integrated Step-Up Converter

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.

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Datasheet preview – SC4509

Datasheet Details

Part number SC4509
Manufacturer Semtech Corporation
File Size 452.66 KB
Description Highly Integrated Step-Up Converter
Datasheet download datasheet SC4509 Datasheet
Additional preview pages of the SC4509 datasheet.

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Full PDF Text Transcription

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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 backlighting applications. It is designed to drive up to five LEDs with a wide input voltage range of 2.
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