ACTIVE-SEMI ACT8930

ACT8930
®
Product Brief, 04-Nov-10
Advanced PMU for Portable Handheld Equipment
FEATURES
GENERAL DESCRIPTION
• Three Step-Down DC/DC Converters
• Four Low-Dropout Linear Regulators
• Dedicated enable pins for the voltage regulators
The ACT8930 is a complete, cost effective, highlyefficient ActivePMUTM power management solution,
for portable handheld equipment such as
Smartphones, Mobile Internet Devices (MID),
eBooks and etc.
for flexible power sequencing.
• Integrated ActivePathTM Charger
This device features three step-down DC/DC
converters and four low-noise, low-dropout linear
regulators, along with a complete battery charging
solution featuring the advanced ActivePathTM
system-power selection function.
• I C Serial Interface
• Minimal External Components
• Tiny 5×5mm TQFN55-40 Package
2 TM
− 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 1100mA of output
current, while the third supports up to 1300mA. All
four low-dropout linear regulators are highperformance, low-noise, regulators that supply up to
320mA each.
APPLICATIONS
•
•
•
•
•
Personal Navigation Devices
Portable Media Players
Tablet Devices
The ACT8930 is available in a compact, Pb-Free
and RoHS-compliant TQFN55-40 package.
Smart Phones
MIDs
SYSTEM BLOCK DIAGRAM
ActivePMU
TM
Innovative PowerTM
ActivePMUTM and ActivePathTM are trademarks of Active-Semi.
I2CTM is a trademark of NXP.
-1-
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.
ACT8930
®
Product Brief, 04-Nov-10
PRODUCT OPTIONS
Block
Function
Output Voltage
Capability
ActivePath
System Power Selection
4.6V
Up to 2A
CHGR
Battery Charger
4.2V
Programmable up to 1A
REG1
Step-Down DC/DC
REG2
Step-Down DC/DC
REG3
Step-Down DC/DC
1300mA
REG4
LDO
320mA
REG5
LDO
REG6
LDO
REG7
LDO
1100mA
Adjustable, or 0.6V to 3.9V
1100mA
320mA
0.6V to 3.9V
320mA
320mA
FUNCTIONAL BLOCK DIAGRAM
(Optional)
AC Adaptor
BODY
SWITCH
ACT8930
4.35V to 6V CHGIN
VSYS
System Supply
BAT
Li+ Battery
USB
ACIN
BODY
SWITCH
ActivePath
Control
VSYS
nSTAT
+
102µA
CURRENT SENSE
CHARGE STATUS
TH
VOLTAGE SENSE
Charge
Control
CHGLEV
PRECONDITION
2.85V
VP1
ISET
To VSYS
THERMAL
REGULATION
110°C
SW1
OUT1
OUT1
OUT1
nRSTO
GP12
VP2
ON1
SW2
ON2
OUT2
ON3
GP12
To VSYS
OUT2
ON45
VP3
ON6
SW3
To VSYS
OUT3
ON7
OUT3
System
Control
GP3
SCL
INL
To VSYS
SDA
REG4
LDO
BAT
LBI
REG5
LDO
1.2V
OUT1
OUT4
OUT4
OUT5
OUT5
+
REG6
LDO
nLBO
REG7
LDO
OUT6
OUT6
OUT7
OUT7
REFBP
Reference
GA
Innovative PowerTM
-2-
EP
www.active-semi.com
Copyright © 2010 Active-Semi, Inc.