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ACT6330

Dual PWM Step-Up DC/DCs in TQFN33

Active-Semi, Inc 

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.

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