ACT8342 Three-Channel Integrated Power Management Handheld Portab

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ACT8342 Three-Channel Integrated Power Management Handheld Portab

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Product Brief, 29-Feb-08 Advanced InformationAll Information Subject Change
ACT8342
Three-Channel Integrated Power Management Handheld Portable Equipment FEATURES
Multiple Patents Pending Three Integrated Regulators
350mA Step-Down DC/DC 80mA Noise 150mA Noise
GENERAL DESCRIPTION
patent-pending ACT8342 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 noise, high PSRR linear regulators that capable supplying 80mA, 150mA, respectively. ACT8342 available tiny 16-pin Thin-QFN package that just 0.75mm thin.
Independent Enable/Disable Control Minimal External Components 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 nRSTO nMSTR nIRQ Step-Down DC/DC
OUT1 Adjustable, 1.2V 3.3V 350mA OUT2 1.4V 3.7V 80mA OUT3 1.4V 3.7V 150mA
System Control
REG2
REG3
ACT8342
Active
Innovative PowerActivePMU
www.active-semi.com Copyright 2008 Active-Semi, Inc.
trademark Active-Semi.
Product Brief, 29-Feb-08
ACT8342
Capability
350mA 80mA 150mA
PRODUCT OPTIONS
Block
REG1 REG2 REG3
Function
Step-Down DC/DC
Output Voltage
Adjustable, 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V 1.4V 3.7V
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.
FUNCTIONAL BLOCK DIAGRAM
OUT2 nRSTO
Active-Semi
ACT8342
Battery REG1
nMSTR
OUT1
PUSH BUTTON
OUT2 nIRQ
REFBP Reference REG2
Battery OUT1
System Control
OUT2
REG3
OUT3
Innovative Power
www.active-semi.com Copyright 2008 Active-Semi, Inc.

ACT8342 Three-Channel Integrated Power Management Handheld Portab

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