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Numéro de référence | ACT8935 | ||
Description | Advanced PMU | ||
Fabricant | Active-Semi | ||
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® 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.
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www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
Free Datasheet http://www.datasheet4u.com/
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Pages | Pages 2 | ||
Télécharger | [ ACT8935 ] |
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