ACT8942 Ver la hoja de datos (PDF) - Active-Semi, Inc

Número de pieza

componentes Descripción

Fabricante

ACT8942

PMIC Solutions

Active-Semi, Inc 

ACT8942

Rev 2, 15-Nov-12

Advanced PMU for Amlogic AML8726-M3 Processor

FEATURES

• 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

GENERAL DESCRIPTION

The ACT8942 is a complete, cost effective, highly-

efficient ActivePMUTM power management solution,

optimized for the unique power, voltage-

sequencing, and control requirements of the

Amlogic AML8726-M3 processor. It is ideal for a wide

range of high performance portable handheld

applications such as tablet or pad devices. This device

integrates the ActivePathTM complete battery charging

and management system with seven power supply

channels.

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 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

80mA, 320mA, 320mA, 320mA, respectively.

The ACT8942 is available in a compact, Pb-Free

and RoHS-compliant TQFN55-40 package.

TYPICAL APPLICATION DIAGRAM

Innovative PowerTM

-1-

Active-Semi Proprietary―For Authorized Recipients and Customers

ActivePMUTM and ActivePathTM are trademarks of Active-Semi.

I2CTM is a trademark of NXP.

www.active-semi.com

Copyright © 2012 Active-Semi, Inc.

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