ACT8780 Channel Integrated Power Management Handheld Portable Equ
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Product Brief, 03-Feb-08 Advanced InformationAll Information Subject Change
ACT8780
Channel Integrated Power Management Handheld Portable Equipment FEATURES
Multiple Patents Pending Integrated Regulators
350mA Step-Down DC/DC 550mA Step-Down DC/DC 550mA Step-Down DC/DC 250mA Noise 250mA Noise 250mA Noise
GENERAL DESCRIPTION
patent-pending ACT8780 complete, costeffective, highly-efficient ActivePMUpower management solution that ideal wide range portable handheld equipment. This device integrates three step-down DC/DC converters three dropout linear regulators (LDOs) into single, thin, space-saving package. Serial Interface provides programmability DC/DC converters LDOs. ACT8780 also integrates enable pins: controls REG1, REG2 REG3, controls REG4, REG5 REG6. REG1, REG2 REG3 fixed-frequency, current-mode step-down DC/DC converters that optimized high efficiency capable supplying 350mA, 550mA 550mA, respectively. REG4, REG5 REG6 noise, high PSRR linear regulators that capable supplying 250mA each. ACT8780 available tiny 24-pin Thin-QFN package that just 0.75mm thin.
I2CCompatible 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 PDAs Wireless Handhelds Enabled Devices Receivers, etc.
SYSTEM BLOCK DIAGRAM
REG2
Step-Down DC/DC OUT2 1.1V 4.4V 550mA OUT3 1.1V 4.4V 550mA OUT4 1.4V 3.7V 250mA OUT5 1.4V 3.7V 250mA OUT6 1.4V 3.7V 250mA
Battery nMSTR nIRQ nRSTO OUT1 1.1V 4.4V 350mA
System Control
REG3
Step-Down DC/DC
REG4
REG1
Step-Down DC/DC
REG5
ACT8780
Active
REG6
Innovative Products. Active Solutions.
ActivePMU trademark Active-Semi. I2Cis trademark Philips Electronics.
www.active-semi.com Copyright 2008 Active-Semi, Inc.
Product Brief, 03-Feb-08
ACT8780
Capability
350mA 550mA 550mA 250mA
PRODUCT OPTIONS
Block
REG1 REG2 REG3 REG4 REG5 REG6
Function
Step-Down DC/DC Step-Down DC/DC Step-Down DC/DC
Output Voltage
1.1V 4.4V
1.4V 3.7V
250mA 250mA
Output voltage options detailed this table represent standard voltage options, available samples production orders. Contact Active-Semi more information regarding semi-custom output voltage combinations. Contact factory additional available products custom requirements.
FUNCTIONAL BLOCK DIAGRAM
ACT8780
Serial Interface REG1
Battery
OUT1 OUT1 GP12
nMSTR PUSH BUTTON OUT2 nIRQ
Battery
REG2
OUT2 OUT2 GP12
OUT2 nRSTO REG3
Battery
OUT3 OUT3
System Control
Battery
REG4 REFBP Reference REG5
OUT4 OUT4
OUT5 OUT5
REG6
OUT6 OUT6
Innovative Products. Active Solutions.
www.active-semi.com Copyright 2008 Active-Semi, Inc.
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