ACT8890 ® Product Brief, 29-Nov-10 Advanced PMU for Portable Handheld Equipment FEATURES GENERAL DESCRIPTION • • • • • • The ACT8890 is a complete, cost effective, highlyefficient ActivePMUTM power management solution, for portable handheld equipment such as Smartphones, Mobile Internet Devices (MID), eBooks and etc. Three Step-Down DC/DC Converters Four Low-Dropout Linear Regulators I2CTM Serial Interface Advanced Enable/Disable Sequencing Controller This device features three step-down DC/DC converters and four low-noise, low-dropout linear regulators. Minimal External Components Tiny 5×5mm TQFN55-32 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 1150mA 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 Smart Phones The ACT8890 is available in a compact, Pb-Free and RoHS-compliant TQFN55-32 package. 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. ACT8890 ® 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 1300mA REG4 LDO 320mA REG5 LDO REG6 LDO REG7 LDO 1150mA Adjustable, or 0.6V to 3.9V 1150mA 320mA 0.6V to 3.9V 320mA 320mA FUNCTIONAL BLOCK DIAGRAM VP1 To Battery ACT8890 SW1 OUT1 OUT1 OUT1 nRSTO GP1 VP2 To Battery SW2 OUT2 ON1 OUT2 GP2 ON2 VP3 To Battery ON3 SW3 OUT3 ON45 OUT3 System Control GP3 ON6 INL45 To Battery ON7 REG4 LDO OUT4 OUT4 SCL SDA REG5 LDO Serial Interface VDDREF OUT5 OUT5 INL67 To Battery REG6 LDO REFBP Reference REG7 LDO GA To Battery OUT6 OUT6 OUT7 OUT7 EP Innovative PowerTM -2- www.active-semi.com Copyright © 2010 Active-Semi, Inc.