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ACT8796 fiches techniques PDF

Active-Semi - Six Channel Integrated Power Management IC

Numéro de référence ACT8796
Description Six Channel Integrated Power Management IC
Fabricant Active-Semi 
Logo Active-Semi 





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ACT8796 fiche technique
ACT8796
Rev1, 10-Oct-08
Six Channel Integrated Power Management IC
for Handheld Portable Equipment
FEATURES
Multiple Patents Pending
Six Integrated Regulators
750mA PWM Step-Down DC/DC
750mA PWM Step-Down DC/DC
550mA PWM Step-Down DC/DC
250mA Low Noise LDO
250mA Low Noise LDO
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.
SYSTEM BLOCK DIAGRAM
Battery
nMSTR
nRSTO
PWRHLD
ON3
SCL
SDA
OUT1
1.1V to 4.4V
Up to 750mA
System
Control
REG1
Step-Down
DC/DC
ACT8796
PMUActive
TM
REG2
Step-Down
DC/DC
REG3
Step-Down
DC/DC
REG4
LDO
REG5
LDO
REG6
LDO
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of Philips Electronics.
-1-
OUT2
1.1V to 4.4V
Up to 750mA
OUT3
1.1V to 4.4V
Up to 550mA
OUT4
0.645V to 3.7V
Up to 250mA
OUT5
1.4V to 3.7V
Up to 250mA
OUT6
1.4V to 3.7V
Up to 250mA
Pb-free
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.
Free Datasheet http://www.datasheet4u.com/

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