ACT8865中文资料威讯联合数据手册PDF规格书

FEATURES

• Three Step-Down DC/DC Converters

• Four Low-Dropout Linear Regulators

• I2CTM Serial Interface

• Advanced Enable/Disable Sequencing Controller

• Minimal External Components

• Tiny 4×4mm TQFN44-32 Package

• 0.75mm Package Height

• Pb-Free and RoHS Compliant

GENERAL DESCRIPTION

The ACT8865 is a complete, cost effective, highlyefficient

ActivePMUTM power management solution,

optimized for the unique power, voltage-sequencing, and

control requirements of the Atmel SAMA5D2 series,

SAMA5D3 series: SAMA5D [31/33/34/35/36], and SAM9

series:SAM9G [15/25/35/45/46]; SAM9X[25/35],

SAM9M[10/11], SAM9N[11/12] processors. It is ideal for

a wide range of high performance portable handheld

applications such as human-machine interfaces, control

panels, smart grid infrastructures, network gateways,

M2M systems, 2D barcode scanners, barcode printers,

machine vision equipment, as well as home and

commercial building automations, POS terminals,

medical devices and white goods.

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 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

320mA.

The ACT8865 is available in a compact, Pb-Free and

RoHS-compliant TQFN44-32 package.