ACT8895

® ACT8895 Product Brief, 29-Nov-10 Advanced PMU for SiRF PrimaTM and Atlas IVTM FEATURES • • • • • • • Optimized for SiRF PrimaTM/Atlas IVTM Processors Three Step-Down DC/DC Converters Four Low-Dropout Linear Regulators I2CTM Serial Interface Advanced Enable/Disable Sequencing Controller Minimal External Components Tiny 5×5mm TQFN55-32 Package − 0.75mm Package Height − Pb-Free and RoHS Compliant GENERAL DESCRIPTION The ACT8895 is a complete, cost effective, highlyefficient ActivePMUTM power management solution, optimized for the unique power, voltagesequencing, and control requirements of the SiRF PrimaTM and Atlas IVTM processors. This device features three step-down DC/DC converters and four low-noise, low-dropout linear regulators. 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 each supply up to 150mA. The ACT8895 is available in a compact, Pb-Free and RoHS-compliant TQFN55-32 package. APPLICATIONS • • • • • Personal Navigation Devices Portable Media Players 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. ® Product Brief, 29-Nov-10 ACT8895 900mA PRODUCT OPTIONS Block REG1 REG2 REG3 REG4 REG5 REG6 REG7 Function Step-Down DC/DC Step-Down DC/DC Step-Down DC/DC LDO LDO LDO LDO Output Voltage Adjustable, or 0.6V to 3.9V Capability 700mA 900mA 150mA 0.6V to 3.9V 150mA 150mA 150mA FUNCTIONAL BLOCK DIAGRAM Innovative PowerTM -2- www.active-semi.com Copyright © 2010 Active-Semi, Inc.