ACT8930

® ACT8930 Product Brief, 04-Nov-10 Advanced PMU for Portable Handheld Equipment FEATURES • Three Step-Down DC/DC Converters • Four Low-Dropout Linear Regulators • Dedicated enable pins for the voltage regulators for flexible power sequencing. • Integrated ActivePathTM Charger GENERAL DESCRIPTION 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. 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. 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. The ACT8930 is available in a compact, Pb-Free and RoHS-compliant TQFN55-40 package. • I C Serial Interface • Minimal External Components • Tiny 5×5mm TQFN55-40 Package 2 TM − 0.75mm Package Height − Pb-Free and RoHS Compliant APPLICATIONS • • • • • Personal Navigation Devices Portable Media Players Tablet Devices 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. ® Product Brief, 04-Nov-10 ACT8930 Up to 2A PRODUCT OPTIONS Block ActivePath CHGR REG1 REG2 REG3 REG4 REG5 REG6 REG7 Function System Power Selection Battery Charger Step-Down DC/DC Step-Down DC/DC Step-Down DC/DC LDO LDO LDO LDO Output Voltage 4.6V 4.2V Capability Programmable up to 1A 1100mA Adjustable, or 0.6V to 3.9V 1100mA 1300mA 320mA 0.6V to 3.9V 320mA 320mA 320mA FUNCTIONAL BLOCK DIAGRAM (Optional) AC Adaptor USB ACIN BODY SWITCH BODY SWITCH 4.35V to 6V CHGIN ACT8930 VSYS System Supply VSYS ActivePath Control BAT Li+ Battery nSTAT CHARGE STATUS CURRENT SENSE 102µA + TH VOLTAGE SENSE CHGLEV Charge Control PRECONDITION 2.85V VP1 THERMAL REGULATION ISET To VSYS 110°C SW1 OUT1 OUT1 GP12 VP2 OUT1 nRSTO To VSYS ON1 ON2 ON3 ON45 ON6 ON7 SW2 OUT2 OUT2 GP12 VP3 To VSYS SW3 OUT3 OUT3 GP3 INL To VSYS System Control SCL SDA BAT LBI OUT1 nLBO 1.2V + REG6 LDO REG7 LDO REFBP Reference REG4 LDO REG5 LDO OUT4 OUT4 OUT5 OUT5 OUT6 OUT6 OUT7 OUT7 GA EP Innovative PowerTM -2- www.active-semi.com Copyright © 2010 Active-Semi, Inc.