ACT8895 データシートの表示（PDF） - Active-Semi, Inc

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ACT8895

Advanced PMU for SiRF Prima™ and Atlas IV™

Active-Semi, Inc 

®

ACT8895

Product Brief, 29-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

• I2CTM Serial Interface

• Advanced Enable/Disable Sequencing Controller

• Minimal External Components

• Tiny 5×5mm TQFN55-32 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 ACT8895 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.

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 ACT8895 is available in a compact, Pb-Free

and RoHS-compliant TQFN55-32 package.

TYPICAL APPLICATION DIAGRAM

Innovative PowerTM

-1-

ActivePMUTM is trademark of Active-Semi.

I2CTM is a trademark of NXP.

www.active-semi.com

Copyright © 2010 Active-Semi, Inc.

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