ACT6330
Rev0, 02-Apr-08
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
• 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
GENERAL DESCRIPTION
The patent-pending ACT6330 integrates two step-
up 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 tech-
nology but does not require a high level of integra-
tion.
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.
SYSTEM BLOCK DIAGRAM
Battery
ON1
ON2
System
Control
ACT6330
PMU TM
Active
REG1
Step-Up
DC/DC
REG2
Step-Up
DC/DC
OUT1
WLED Bias
Up to 18 LEDs
OUT2
Up to 20V
Pb-free
Innovative PowerTM
-1-
ActivePMUTM is a trademark of Active-Semi.
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.