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ACT8938

更新时间： 2024-11-19 08:15:15

品牌	Logo	应用领域
技领 - ACTIVE-SEMI		/
页数	文件大小	规格书
2页	87K
描述
Advanced PMU for Marvell Aspen

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ACT8938 数据手册

ACT8938

Product Brief, 09-Nov-10

Advanced PMU for Marvell Aspen

FEATURES

GENERAL DESCRIPTION

The ACT8938 is a complete, cost effective, highly

efficient ActivePMU^TMpower management solution,

optimized for the unique power, voltage

sequencing, and control requirements of the Marvell

Aspen processor.

• Optimized for Marvell Aspen Processors

• Three Step-Down DC/DC Converters

• Four Low-Dropout Linear Regulators

• Integrated ActivePath^TMCharger

• I²C^TMSerial Interface

• Advanced Enable/Disable Sequencing Controller

• Minimal External Components

• Tiny 5×5mm TQFN55-40 Package

− 0.75mm Package Height

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 ActivePath^TM

system-power selection function.

The three DC/DC converters utilize

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 1150mA of output

current, while the third supports up to 1300mA. All

four low-dropout linear regulators are high-

performance, low-noise, regulators that supply up to

150mA, 150mA, 320mA and 320mA respectively.

− Pb-Free and RoHS Compliant

APPLICATIONS

• Personal Navigation Devices

• Portable Media Players

• Tablet Devices

• Smart Phones

• MIDs

The ACT8938 is available in a compact, Pb-Free

and RoHS-compliant TQFN55-40 package .

TYPICAL APPLICATION DIAGRAM

Innovative Power^TM

- 1 -

www.active-semi.com

ActivePMU^TMand ActivePath^TMare trademarks of Active-Semi.

I²C^TMis a trademark of NXP.

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