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ACT8342 Datasheet Preview

ACT8342 Datasheet

Three Channel Integrated Power Management IC

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ACT8342 pdf
ACT8342
Rev0, 26-May-08
Three Channel Integrated Power Management IC
for Handheld Portable Equipment
FEATURES
Multiple Patents Pending
Three Integrated Regulators
350mA PWM Step-Down DC/DC
80mA Low Noise LDO
150mA Low Noise LDO
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, etc.
GENERAL DESCRIPTION
The patent-pending ACT8342 is a complete, cost
effective, highly-efficient ActivePMUTM power man-
agement solution that is ideal for a wide range of
portable handheld equipment. This device inte-
grates one PWM step-down DC/DC converter and
two low noise, low dropout linear regulators (LDOs)
in a single, thin, space-saving package. 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 is a fixed-frequency, current-mode PWM
step-down DC/DC converter that is optimized for
high efficiency and is capable of supplying up to
350mA output current. REG1’s output is available in
a variety of factory-preset output voltage options,
and an adjustable output voltage mode is also avail-
able. REG2, REG3 are low noise, high PSRR linear
regulators that are capable of supplying up to
80mA, and 150mA, respectively.
The ACT8342 is available in a tiny 3mm × 3mm
16-pin Thin-QFN package that is just 0.75mm thin.
www.DaStaSYheSetT4UE.cMom BLOCK DIAGRAM
Battery
nRSTO
nMSTR
nIRQ
ON1
ON2
ON3
System
Control
ACT8342
PMUActive
TM
REG1
Step-Down
DC/DC
REG2
LDO
REG3
LDO
OUT1
Adjustable, or
1.2V to 3.3V
Up to 350mA
OUT2
1.4V to 3.7V
Up to 80mA
OUT3
1.4V to 3.7V
Up to 150mA
Pb
Pb-free
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
-1-
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.



Active-Semi
Active-Semi

ACT8342 Datasheet Preview

ACT8342 Datasheet

Three Channel Integrated Power Management IC

No Preview Available !

ACT8342 pdf
ACT8342
Rev0, 26-May-08
FUNCTIONAL BLOCK DIAGRAM
OUT2
nRSTO
PUSH
BUTTON
nMSTR
INL
OUT2
nIRQ
Active-Semi
ACT8342
www.DataSheet4U.com
ON1
ON2
ON3
REFBP
GA
System
Control
Reference
REG2
LDO
REG3
LDO
VP1
To Battery
SW1
FB1
GP1
OUT1
INL
To Battery or OUT1
OUT2
OUT3
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
-2-
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.


Part Number ACT8342
Description Three Channel Integrated Power Management IC
Maker Active-Semi
Total Page 17 Pages
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