ACT8894 ® Product Brief, 29-Nov-10 Advanced PMU for Samsung S3C2416/S3C2450 FEATURES GENERAL DESCRIPTION • Optimized for Samsung S3C2416/S3C2450 The ACT8894 is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltagesequencing, and control requirements of the Samsung S3C2416/S3C2450 processors. Processors • • • • • • 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 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 900mA of output current, while the third supports up to 700mA. All four lowdropout linear regulators are high-performance, low-noise, regulators that supply up to 150mA, 150mA, 250mA, and 250mA, respectively. Tiny 5×5mm TQFN55-32 Package − 0.75mm Package Height − Pb-Free and RoHS Compliant APPLICATIONS • • • • • Personal Navigation Devices Portable Media Players The ACT8894 is available in a compact, Pb-Free and RoHS-compliant TQFN55-32 package. Tablet Devices Smart Phones MIDs TYPICAL APPLICATION DIAGRAM Innovative PowerTM ActivePMUTM is trademark of Active-Semi. I2CTM is a trademark of NXP. -1- www.active-semi.com Copyright © 2010 Active-Semi, Inc. ACT8894 ® Product Brief, 29-Nov-10 PRODUCT OPTIONS Block Function Output Voltage Capability REG1 Step-Down DC/DC REG2 Step-Down DC/DC REG3 Step-Down DC/DC 900mA REG4 LDO 150mA REG5 LDO REG6 LDO REG7 LDO 900mA Adjustable, or 0.6V to 3.9V 700mA 150mA 0.6V to 3.9V 250mA 250mA FUNCTIONAL BLOCK DIAGRAM VP1 To Battery ACT8894 SW1 OUT1 VP2 OUT1 nPBIN PUSH BUTTON GP1 OUT1 VP2 nRSTO To Battery SW2 OUT2 OUT2 OUT1 GP2 nPBSTAT VP3 OUT1 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 To Battery To Battery OUT6 OUT6 Reference REG7 LDO GA OUT7 OUT7 EP Innovative PowerTM -2- www.active-semi.com Copyright © 2010 Active-Semi, Inc.