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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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.
SC4509 Datasheet
