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ACT8935 fiches techniques PDF

Active-Semi - Advanced PMU

Numéro de référence ACT8935
Description Advanced PMU
Fabricant Active-Semi 
Logo Active-Semi 





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ACT8935 fiche technique
® ACT8935
Product Brief, 05-Nov-10
Advanced PMU for SiRF PrimaTM and Atlas IVTM
FEATURES
Optimized for SiRF PrimaTM/Atlas IVTM Processors
Three Step-Down DC/DC Converters
Four Low-Dropout Linear Regulators
Integrated ActivePathTM Charger
I2CTM Serial Interface
Advanced Enable/Disable Sequencing Controller
Minimal External Components
Tiny 5×5mm TQFN55-40 Package
0.75mm Package Height
Pb-Free and RoHS Compliant
APPLICATIONS
Personal Navigation Devices
Portable Media Players
Tablet Devices
Smart Phones
MIDs
GENERAL DESCRIPTION
The ACT8935 is a complete, cost effective, highly-
efficient ActivePMUTM power management solution,
optimized for the unique power, voltage-
sequencing, and control requirements of the SiRF
PrimaTM and Atlas IVTM processors.
This device features three step-down DC/DC
converters and four low-noise, low-dropout linear
regulators, along with a complete battery charging
solution featuring the advanced ActivePathTM
system-power selection function.
The three DC/DC converters utilize a high-
efficiency, fixed-frequency (2MHz), current-mode
PWM control architecture that requires a minimum
number of external components. Two DC/DCs are
capable of supplying up to 900mA of output current,
while the third supports up to 700mA. All four low-
dropout linear regulators are high-performance,
low-noise, regulators that each supply up to 150mA.
The ACT8935 is available in a compact, Pb-Free
and RoHS-compliant TQFN55-40 package.
TYPICAL APPLICATION DIAGRAM
Innovative PowerTM
ActivePMUTM and ActivePathTM are trademarks of Active-Semi.
I2CTM is a trademark of NXP.
-1-
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
Free Datasheet http://www.datasheet4u.com/

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