Datasheet > ACT8786

ACT8786

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
技领 - ACTIVE-SEMI		便携式便携式设备
页数	文件大小	规格书
2页	108K
描述
Six Channel Integrated Power Management IC for Handheld Portable Equipment

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ACT8786 数据手册

ACT8786

Product Brief, 03-Feb-08

Advanced Information―All Information Subject to Change

Six Channel Integrated Power Management IC

for Handheld Portable Equipment

FEATURES

GENERAL DESCRIPTION

The patent-pending ACT8786 is a complete, cost-

effective, highly-efficient ActivePMU^TMpower man-

agement solution that is ideal for a wide range of

portable handheld equipment. This device inte-

grates three step-down DC/DC converters and

three low dropout linear regulators (LDOs) into a

single, thin, space-saving package. An I²C Serial

Interface provides programmability for the DC/DC

converters and LDOs.

• Multiple Patents Pending

• Six Integrated Regulators

− 750mA PWM Step-Down DC/DC

− 550mA PWM Step-Down DC/DC

− 250mA Low Noise LDO

• I²C^TMCompatible Serial Interface

− Programmable Output Voltages

− Configurable Operating Modes

The ACT8786 also integrates two enable pins: ON1

controls REG1, REG2 and REG3, ON4 controls

REG4, REG5 and REG6.

REG1, REG2 and REG3 are fixed-frequency, cur-

rent-mode PWM step-down DC/DC converters that

• Minimal External Components

• 4x4mm, Thin-QFN (TQFN44-24) Package

− Only 0.75mm Height

− RoHS Compliant

are optimized for high efficiency and are capable of

supplying up to 750mA, 750mA and 550mA, re-

spectively. REG4, REG5 and REG6 are low noise,

high PSRR linear regulators that are capable of

supplying up to 250mA each.

APPLICATIONS

The ACT8786 is available in a tiny 4mm x 4mm

24-pin Thin-QFN package that is just 0.75mm thin.

• Portable Devices and PDAs

• Wireless Handhelds

• DMB Enabled Devices

• GPS Receivers, etc.

SYSTEM BLOCK DIAGRAM

OUT2

1.1V to 4.4V

Up to 750mA

REG2

Step-Down

DC/DC

Battery

nMSTR

nIRQ

OUT3

1.1V to 4.4V

Up to 550mA

nRSTO

REG3

Step-Down

DC/DC

System

Control

ON1

ON4

SCL

SDA

OUT4

1.4V to 3.7V

Up to 250mA

REG4

LDO

OUT1

REG1

OUT5

1.4V to 3.7V

Up to 250mA

REG5

LDO

1.1V to 4.4V

Step-Down

Up to 750mA

DC/DC

OUT6

1.4V to 3.7V

Up to 250mA

REG6

LDO

ACT8786

ActivePMU

Innovative Products. Active Solutions.

- 1 -

www.active-semi.com

ActivePMU^TMis a trademark of Active-Semi.

I²C^TMis a trademark of Philips Electronics.

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