SC4509: Highly Integrated Step-Up Converter for White LED Applications in MLPD-W8-2x2
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 2.7 to 10 volts. Designed for an output voltage up to 20V, the SC4509 operates with a constant 1.2MHz PWM frequency.
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- 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
- Digital Video Cameras
- White LED Backlight Driver
- OLED Display Driver
- Portable Media Players
- GPS Receivers
- Cellular Phones
- PDAs and Handheld Computers
- SC4509SKTRT: Lead-Free, RoHS and WEEE Compliant, 3000 pcs.Tape & Reel
- SC4509WLTRT: Lead-Free, RoHS and WEEE Compliant, 3000 pcs.Tape & Reel
