ACT8899 - Active-Semi

ACT8899
Product Brief, 16-Aug-13
Advanced PMU for Freescale i.MX53 Processor
FEATURES
GENERAL DESCRIPTION
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The ACT8899 is a complete, cost effective, highlyefficient ActivePMUTM power management solution,
optimized for the unique power, voltagesequencing, and control requirements of the
Freescale i.MX53 processor.
Optimized for Freescale i.MX53 Processor
Three Step-Down DC/DC Converters
Four Low-Dropout Linear Regulators
I2CTM Serial Interface
This device features three step-down DC/DC
converters and four low-noise, low-dropout linear
regulators.
Advanced Enable/Disable Sequencing Controller
Minimal External Components
Tiny 4×4mm TQFN44-32 Package
− 0.75mm Package Height
− Pb-Free and RoHS Compliant
The three DC/DC converters utilize a highefficiency, 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 highperformance, low-noise, regulators that support up
to 320mA.
The ACT8899 is available in a compact, Pb-Free
and RoHS-compliant TQFN44-32 package.
SYSTEM BLOCK DIAGRAM
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
-1-
www.active-semi.com
Copyright © 2013 Active-Semi, Inc.
ACT8899
Product Brief, 16-Aug-13
PRODUCT OPTIONS
Block
Function
Output Voltage
Capability
REG1
Step-Down DC/DC
0.6V to 3.9V
1150mA
REG2
Step-Down DC/DC
0.6V to 3.9V
1150mA
REG3
Step-Down DC/DC
0.6V to 3.9V
1300mA
REG4
LDO
0.6V to 3.9V
320mA
REG5
LDO
0.6V to 3.9V
320mA
REG6
LDO
0.6V to 3.9V
320mA
REG7
LDO
0.6V to 3.9V
320mA
FUNCTIONAL BLOCK DIAGRAM
VP1
To Battery
ACT8899
ACT8899
SW1
OUT1
VDDREF
OUT1
nPBIN
PUSH BUTTON
GP1
OUT7
VP2
nRSTO
To Battery
SW2
OUT2
OUT2
OUT7
GP2
nPBSTAT
VP3
OUT7
To Battery
SW3
nIRQ
OUT3
OUT3
System
Control
GP3
PWRHLD
INL45
PWREN
REG4
LDO
VSEL
SCL
SDA
REG5
LDO
Serial
Interface
OUT4
OUT4
OUT5
OUT5
INL67
VDDREF
To Battery
REG6
LDO
REFBP
Reference
REG7
LDO
GA
To Battery
To Battery
OUT6
OUT6
OUT7
OUT7
EP
Innovative PowerTM
ActivePMUTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP.
-2-
www.active-semi.com
Copyright © 2013 Active-Semi, Inc.