ACT8342 datasheet(1/17 Pages) ACTIVE-SEMI

Il numero della parte	ACT8342

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

PDF	17 Pages

Scroll/Zoom	100%

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

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

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1 / 17 page

Innovative Power

TM

- 1 -

www.active-semi.com

ActivePMU

TM is a trademark of Active-Semi.

ACT8342

Three Channel Integrated Power Management IC

for Handheld Portable Equipment

Rev0, 26-May-08

SYSTEM BLOCK DIAGRAM

FEATURES

• Multiple Patents Pending

• Three Integrated Regulators

− 350mA PWM Step-Down DC/DC

− 80mA Low Noise LDO

− 150mA Low Noise LDO

• Independent Enable/Disable Control

• Minimal External Components

• 3×3mm, Thin-QFN (TQFN33-16) Package

− Only 0.75mm Height

− RoHS Compliant

APPLICATIONS

• Portable Devices and PDAs

• MP3/MP4 Players

• Wireless Handhelds

• GPS Receivers, etc.

GENERAL DESCRIPTION

The patent-pending ACT8342 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 one PWM step-down DC/DC converter and

two low noise, low dropout linear regulators (LDOs)

in a single, thin, space-saving package. This device

is ideal for a wide range of portable handheld

equipment that can benefit from the advantages of

ActivePMU

technology but does not require a high

level of integration.

REG1 is a fixed-frequency, current-mode PWM

step-down DC/DC converter that is optimized for

high efficiency and is capable of supplying up to

350mA output current. REG1’s output is available in

a variety of factory-preset output voltage options,

and an adjustable output voltage mode is also avail-

able. REG2, REG3 are low noise, high PSRR linear

regulators that are capable of supplying up to

80mA, and 150mA, respectively.

The ACT8342 is available in a tiny 3mm

× 3mm

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

OUT1

Adjustable, or

1.2V to 3.3V

Up to 350mA

OUT2

1.4V to 3.7V

Up to 80mA

OUT3

1.4V to 3.7V

Up to 150mA

ON2

ON3

System

Control

REG3

LDO

REG2

LDO

Battery

REG1

Step-Down

DC/DC

ACT8342

TM

PMU

Active

nIRQ

nMSTR

nRSTO

ON1

Pb

Pb-free

Codice articolo simile - ACT8342

Produttore elettronici	Il numero della parte	Scheda tecnica	Spiegazioni elettronici
Active-Semi, Inc	ACT8342	114Kb / 2P	Three-Channel Integrated Power Management IC for Handheld Portable Equipment 29-Feb-08
	ACT8342	598Kb / 17P	Three Channel Integrated Power Management IC for Handheld Portable Equipment Rev 3, 11-Sep-09
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ACT8342 Scheda tecnica(PDF) 1 Page - Active-Semi, Inc

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