ACT8937 ® Product Brief, 09-Nov-10 Advanced PMU for Samsung S5PC100, S5PC110 and S5PV210 Processors FEATURES GENERAL DESCRIPTION • Optimized for Samsung S5PC100, S5PC110 and The ACT8937 is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltagesequencing, and control requirements of the Samsung S5PC100, S5PC110 and S5PV210 processors. S5PV210 Processors • • • • • • • Three Step-Down DC/DC Converters Four Low-Dropout Linear Regulators Integrated ActivePathTM Charger I2CTM Serial Interface 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. Advanced Enable/Disable Sequencing Controller Minimal External Components Tiny 5×5mm TQFN55-40 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 1100mA of output current, while the third supports up to 1200mA. All four low-dropout linear regulators are highperformance, low-noise, regulators that supply up to 150mA, 150mA, 250mA, and 250mA, respectively. APPLICATIONS • • • • • Personal Navigation Devices Portable Media Players Tablet Devices Smart Phones The ACT8937 is available in a compact, Pb-Free and RoHS-compliant TQFN55-40 package. MIDs TYPICAL APPLICATION DIAGRAM 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. ACT8937 ® Product Brief, 09-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 1200mA REG4 LDO 150mA REG5 LDO REG6 LDO REG7 LDO 1100mA Adjustable, or 0.6V to 3.9V 1100mA 150mA 0.6V to 3.9V 250mA 250mA FUNCTIONAL BLOCK DIAGRAM (Optional) AC Adaptor BODY SWITCH ACT8937 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 OUT1 110°C SW1 OUT1 nRSTO OUT1 VSYS GP12 nPBIN PUSH BUTTON VP2 OUT1 To VSYS SW2 nPBSTAT OUT2 OUT2 OUT1 GP12 nIRQ VP3 To VSYS SW3 PWRHLD OUT3 OUT3 System Control PWREN GP3 VSEL INL To VSYS SCL REG4 LDO SDA 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.