ACT6330

ACT6330 Rev0, 02-Apr-08 www.DataSheet4U.com Dual PWM Step-Up DC/DCs in TQFN33 FEATURES Multiple Patents Pending Two Integrated Regulators − PWM Step-Up DC/DC with OVP for WLED Bias − PWM Step-Up DC/DC Converter with OVP GENERAL DESCRIPTION The patent-pending ACT6330 integrates two stepup DC/DC into a single, thin, space-saving package to provide a cost-effective, highly-efficient ActivePMUTM power management solution. This device is ideal for a wide range of portable handheld equipment that can benefit from the advantages of ActivePMU technology but does not require a high level of integration. REG1 and REG2 are fixed-frequency, current mode PWM step-up DC/DC converter. REG1 is optimized for high-efficiency WLED bias applications. REG2 is optimized for voltage regulation applications, while together these output can provide a complete TFT bias and backlighting solution for portable handheld equipment. The ACT6330 is available in a tiny 3mm x 3mm 16 pin Thin-QFN package that is just 0.75mm thin. Independent Enable/Disable Control Minimal External Components 3×3mm, Thin-QFN (TQFN33-16) Package − Only 0.75mm Height − RoHS Compliant APPLICATIONS Portable Devices and PDAs MP3/MP4 Players Wireless Handhelds GPS Receivers SYSTEM BLOCK DIAGRAM Battery REG1 Step-Up DC/DC System Control OUT1 WLED Bias Up to 18 LEDs ON1 ON2 Pb-free REG2 ACT6330 Active Step-Up DC/DC OUT2 Up to 20V PMU TM Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. -1...