ACT8796 datasheet(1/34 Pages) ACTIVE-SEMI

Il numero della parte	ACT8796

Spiegazioni elettronici	Six Channel Integrated Power Management IC for Handheld Portable Equipment

PDF	34 Pages

Scroll/Zoom	100%

Produttore elettronici	ACTIVE-SEMI [Active-Semi, Inc]

Homepage	http://www.active-semi.com

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1 / 34 page

Innovative Power

TM

- 1 -

www.active-semi.com

ActivePMU

TM is a trademark of Active-Semi.

I

2CTM is a trademark of Philips Electronics.

Rev1, 10-Oct-08

Six Channel Integrated Power Management IC

for Handheld Portable Equipment

ACT8796

Pb-free

SYSTEM BLOCK DIAGRAM

FEATURES

• Multiple Patents Pending

• Six Integrated Regulators

− 750mA PWM Step-Down DC/DC

− 550mA PWM Step-Down DC/DC

− 250mA Low Noise LDO

• I2CTM Compatible Serial Interface

− Programmable Output Voltages

− Configurable Operating Modes

• Minimal External Components

• 4x4mm, Thin-QFN (TQFN44-24) Package

− Only 0.75mm Height

− RoHS Compliant

APPLICATIONS

• Portable Devices and PDAs

• Wireless Handhelds

• DMB Enabled Devices

• GPS Receivers, etc.

GENERAL DESCRIPTION

The patent-pending ACT8796 is a complete, cost-

effective, highly-efficient ActivePMUTM power 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.

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

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

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.

The ACT8796 is available in a tiny 4mm x 4mm 24-

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

ACT8796

System

Control

REG2

Step-Down

DC/DC

REG1

Step-Down

DC/DC

REG3

Step-Down

DC/DC

REG4

LDO

REG5

LDO

REG6

LDO

ON3

SCL

SDA

Battery

nMSTR

PWRHLD

OUT4

0.645V to 3.7V

Up to 250mA

OUT2

1.1V to 4.4V

Up to 750mA

OUT6

1.4V to 3.7V

Up to 250mA

OUT3

1.1V to 4.4V

Up to 550mA

OUT1

1.1V to 4.4V

Up to 750mA

OUT5

1.4V to 3.7V

Up to 250mA

TM

PMU

Active

nRSTO

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