Datasheet > ACT8891_14

ACT8891_14

更新时间： 2022-02-26 14:02:02

品牌	Logo	应用领域
技领 - ACTIVE-SEMI		/
页数	文件大小	规格书
30页	497K
描述
Advanced PMU for Rockchip RK2918 Processor

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ACT8891_14 数据手册

ACT8891

Rev 1, 06-Sep-13

Advanced PMU for Rockchip RK2918 Processor

FEATURES

GENERAL DESCRIPTION

The ACT8891 is a complete, cost effective, highly-

efficient ActivePMU^TMpower management solution,

optimized for the unique power, voltage-

sequencing, and control requirements of the

Rockchip RK2918 processor.

• Optimized for Rockchip RK2918 Processor

• Three Step-Down DC/DC Converters

• Four Low-Dropout Linear Regulators

• I²C^TMSerial Interface

• Advanced Enable/Disable Sequencing Controller

• Minimal External Components

This device features three step-down DC/DC

converters and four low-noise, low-dropout linear

regulators.

• Tiny 4×4mm TQFN44-32 Package

− 0.75mm Package Height

− Pb-Free and RoHS Compliant

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 support up

to 320mA.

The ACT8891 is available in a compact, Pb-Free

and RoHS-compliant TQFN44-32 package.

SYSTEM BLOCK DIAGRAM

Innovative Power^TM

- 1 -

www.active-semi.com

Active-Semi Proprietary―For Authorized Recipients and Customers

ActivePMU^TMis a trademark of Active-Semi.

I²C^TMis a trademark of NXP.

12 3 4 5 6 7...30

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