ACT8892
Product Brief, 05-Dec-12
Advanced Power Management Unit
FEATURES
•
•
•
•
•
•
Three Step-Down DC/DC Converters
Four Low-Dropout Linear Regulators
I
2
C
TM
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 ACT8892 is a complete, cost effective, highly-
efficient
ActivePMU
TM
power management solution
that is ideal for a wide range of high performance
portable handheld applications such as tablet or pad
devices.
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 ACT8892 is available in a compact, Pb-Free
and RoHS-compliant TQFN44-32 package.
TYPICAL APPLICATION DIAGRAM
Battery
REG1
Step-Down
DC/DC
nPBIN
PWRHLD
PWREN
VSEL
nPBSTAT
SCL
SDA
nIRQ
nRSTO
REG2
Step-Down
DC/DC
System
Control
REG3
Step-Down
DC/DC
REG4
LDO
REG5
LDO
REG6
LDO
VSYS
OUT1
0.6V to 3.9V
Up to 1150mA
OUT2
0.6V to 3.9V
Up to 1150mA
OUT3
0.6V to 3.9V
Up to 1300mA
OUT4
0.6V to 3.9V
Up to 320mA
OUT5
0.6V to 3.9V
Up to 320mA
OUT6
0.6V to 3.9V
Up to 320mA
OUT7
0.6V to 3.9V
Up to 320mA
ACT8892
REG7
LDO
Innovative Power
TM
ActivePMU
TM
is a trademark of Active-Semi.
I
2
C
TM
is a trademark of NXP.
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www.active-semi.com
Copyright © 2012 Active-Semi, Inc.
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
