Advanced PMU
Description
®
ACT8937
Product Brief, 09-Nov-10
Advanced PMU for Samsung S5PC100, S5PC110 and S5PV210 Processors
FEATURES
• Optimized for Samsung S5PC100, S5PC110 and
S5PV210 Processors
GENERAL DESCRIPTION
The ACT8937 is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltagesequencing, and control requirements of the Samsung S5PC100, S5PC110 and S5PV210 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 highefficiency, 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 1100mA of output current, while the third supports up to 1200mA.
All four low-dropout linear regulators are highperformance, low-noise, regulators that supply up to 150mA, 150mA, 250mA, and 250mA, respectively.
The ACT8937 is available in a compact, Pb-Free and RoHS-compliant TQFN55-40 package.
• • • • • • •
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
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/
®
Product Brief, 09-Nov-10
ACT8937
Up to 2A
PRODUCT OPTIONS
Block
ActivePath CHGR REG1 REG2 REG3 REG4 REG5 REG6 REG7
Function
System Power Selection Battery Charger Step-Down DC/DC Step-Down D...
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