ACT8352 Four-Channel Integrated Power Management Handheld Portabl
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Product Brief, 05-May-09 Advanced Information Subject Change
ACT8352
Four-Channel Integrated Power Management Handheld Portable Equipment FEATURES
Four Integrated Regulators
350mA Step-Down DC/DC 80mA Noise 150mA Noise 300mA Noise patent-pending ACT8352 complete, cost effective, highly-efficient ActivePMUpower management solution that ideal wide range portable handheld equipment. This device integrates step-down DC/DC converter noise, dropout linear regulators (LDOs) single, thin, space-saving package. This device ideal wide range portable handheld equipment that benefit from advantages ActivePMU technology does require high level integration. REG1 fixed-frequency, current-mode step-down DC/DC converter that optimized high efficiency capable supplying 350mA output current. REG1's output available variety factory-preset output voltage options, adjustable output voltage mode also available. REG2, REG3, REG4 noise, high PSRR linear regulators that capable supplying 80mA, 150mA, 300mA, respectively. Finally, serial interface provides programmability DC/DC converters LDOs. ACT8352 available tiny 16-pin Thin-QFN package that just 0.75mm thin.
GENERAL DESCRIPTION
Independent Enable/Disable Control I2CCompatible 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 PDAs MP3/MP4 Players Wireless Handhelds Receivers, etc.
SYSTEM BLOCK DIAGRAM
REG1
Battery Step-Down DC/DC nRSTO nPBIN OUT1 0.6V 3.9V 350mA
REG2
nIRQ
System Control
PWRHLD
OUT2 0.6V 3.9V 80mA
REG3
OUT3 0.6V 3.9V 150mA
ACT8352
REG4
Active
OUT4 0.9V 3.9V 300mA
Innovative Power-1ActivePMUis trademark Active-Semi.
www.active-semi.com Copyright 2009 Active-Semi, Inc.
ACT8352
Product Brief, 05-May-09
PRODUCT OPTIONS
Output Voltage Block
REG1 REG2 0.6V 3.9V REG3 REG4
Output voltage options detailed this table represent standard voltage options, available samples production orders. Contact Active-Semi more information regarding semi-custom output voltage combinations. Contact factory additional available products custom requirements.
Capability
350mA
Function
Step-Down DC/DC 300mA 150mA 80mA 0.6V 3.9V
FUNCTIONAL BLOCK DIAGRAM
OUT1
Active-Semi
Battery nRSTO
ACT8352
Reset Timer OUT1 OUT1
EN34 Battery OUT1
REG1
REG2
OUT2
REFBP Reference
System Control REG3 OUT3
REG4 OUT4
Innovative Power-2Copyright 2009 Active-Semi, Inc. www.active-semi.com
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