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ACT8352 Datasheet Preview

ACT8352 Datasheet

Four-Channel Integrated Power Management IC

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ACT8352 pdf
ACT8352
Product Brief, 05-May-09
Advanced Information¯All Information Subject to Change
Four-Channel Integrated Power Management IC for
Handheld Portable Equipment
FEATURES
Four Integrated Regulators
350mA PWM Step-Down DC/DC
80mA Low Noise LDO
150mA Low Noise LDO
300mA Low Noise LDO
Independent Enable/Disable Control
I2CTM Compatible Serial Interface
Programmable Output Voltages
Configurable Operating Modes
Minimal External Components
33mm, Thin-QFN (TQFN33-16) Package
Only 0.75mm Height
RoHS Compliant
APPLICATIONS
Portable Devices and PDAs
MP3/MP4 Players
Wireless Handhelds
GPS Receivers, etc.
www.DataSheet4U.com
GENERAL DESCRIPTION
The patent-pending ACT8352 is a complete, cost
effective, highly-efficient ActivePMUTM power
management solution that is ideal for a wide range
of portable handheld equipment. This device
integrates 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. REG1s output is available in
a variety of factory-preset output voltage options,
and an adjustable output voltage mode is also
available. REG2, REG3, and REG4 are low noise,
high PSRR linear regulators that are capable of
supplying up to 80mA, 150mA, and 300mA,
respectively. Finally, an I2C serial interface provides
programmability for the DC/DC converters and
LDOs.
The ACT8352 is available in a tiny 3mm 3mm
16-pin Thin-QFN package that is just 0.75mm thin.
SYSTEM BLOCK DIAGRAM
Battery
nRSTO
nPBIN
nIRQ
PWRHLD
SCL
SDA
System
Control
ACT8352
PMUActive
TM
REG1
Step-Down
DC/DC
REG2
LDO
REG3
LDO
REG4
LDO
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
-1-
OUT1
0.6V to 3.9V
Up to 350mA
OUT2
0.6V to 3.9V
Up to 80mA
OUT3
0.6V to 3.9V
Up to 150mA
OUT4
0.9V to 3.9V
Up to 300mA
www.active-semi.com
Copyright © 2009 Active-Semi, Inc.



Active-Semi
Active-Semi

ACT8352 Datasheet Preview

ACT8352 Datasheet

Four-Channel Integrated Power Management IC

No Preview Available !

ACT8352 pdf
ACT8352
Product Brief, 05-May-09
PRODUCT OPTIONS
Block
REG1
REG2
REG3
REG4
Function
Step-Down DC/DC
LDO
LDO
LDO
Output Voltage
0.6V to 3.9V
0.6V to 3.9V
Capability
350mA
80mA
150mA
300mA
: Output voltage options detailed in this table represent standard voltage options, and are available for samples or production orders.
Contact Active-Semi for more information regarding semi-custom output voltage combinations.
: Contact factory for additional available products or custom requirements.
FUNCTIONAL BLOCK DIAGRAM
OUT1
nRSTO
EN1
EN2
www.DataSheet4U.com
EN34
SCL
SDA
REFBP
GA
EP
Active- Semi
ACT8352
Reset Timer
Reference
System
Control
REG2
LDO
REG3
LDO
REG4
LDO
VP
To Battery
SW
OUT1
GP
OUT1
INL
To Battery or OUT1
OUT2
OUT3
OUT4
Innovative PowerTM
- 2 - www.active-semi.com
Copyright © 2009 Active-Semi, Inc.


Part Number ACT8352
Description Four-Channel Integrated Power Management IC
Maker Active-Semi
Total Page 2 Pages
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