ACT8865 Advanced PMU for Atmel SAMA5Dx Series & SAM9 Series Processors a wide range of high performance portable handheld FEATURES applications such as human-machine interfaces, control panels, smart grid infrastructures, network gateways, Three Step-Down DC/DC Converters M2M systems, 2D barcode scanners, barcode printers, Four Low-Dropout Linear Regulators machine vision equipment, as well as home and 2 TM I C Serial Interface commercial building automations, POS terminals, medical devices and white goods. Advanced Enable/Disable Sequencing Controller Minimal External Components This device features three step-down DC/DC converters and four low-noise, low-dropout linear regulators. Tiny 44mm TQFN44-32 Package 0.75mm Package Height The three DC/DC converters utilize a high-efficiency, Pb-Free and RoHS Compliant fixed-frequency (2MHz), current-mode PWM control architecture that requires a minimum number of external components. Two DC/DCs are capable of supplying up GENERAL DESCRIPTION to 1150mA of output current, while the third supports up The ACT8865 is a complete, cost effective, highly- to 1300mA. All four low-dropout linear regulators are TM efficient ActivePMU power management solution, high-performance, low-noise, regulators that supply up to optimized for the unique power, voltage-sequencing, and 320mA. control requirements of the Atmel SAMA5D2 series, SAMA5D3 series: SAMA5D 31/33/34/35/36 , and SAM9 The ACT8865 is available in a compact, Pb-Free and series:SAM9G 15/25/35/45/46 SAM9X 25/35 , RoHS-compliant TQFN44-32 package. SAM9M 10/11 , SAM9N 11/12 processors. It is ideal for TYPICAL APPLICATION DIAGRAM Atmel SAMA5Dx ACT8865 REG1 1.8V 1150mA VDDIODDR etc. REG2 1.2V 1150mA VDDCORE GBIT ENET etc. REG3 1300mA 3.3V VDDIOP etc. REG4 320mA VDDFUSE REG5 320mA VDDANA REG6 320mA Auxiliary 1 320mA REG7 Auxiliary 1 SDA TWD TWCK SCL PUSH BUTTON nPBIN nRSTO NRST nIRQ FIQ/IRQ nPBSTAT GPIO Data Sheet Rev. H, September 2019 Subject to change without notice 1 of 32 www.qorvo.com 2020 Qorvo US, Inc. All rights reserved. ACT8865 Advanced PMU for Atmel SAMA5Dx Series & SAM9 Series Processors TABLE OF CONTENTS Functional Block Diagram ................................................................................................................................................. 3 Ordering Information ......................................................................................................................................................... 4 Pin Configuration ............................................................................................................................................................... 4 Pin Descriptions ................................................................................................................................................................ 5 Absolute Maximum Ratings .............................................................................................................................................. 7 2 I C Interface Electrical Characteristics .............................................................................................................................. 8 Global Register Map ......................................................................................................................................................... 9 Register and Bit Descriptions .......................................................................................................................................... 10 System Control Electrical Characteristics ....................................................................................................................... 14 Step-Down DC/DC Electrical Characteristics ................................................................................................................. 15 Low-Noise LDO Electrical Characteristics ...................................................................................................................... 16 Typical Performance Characteristics .............................................................................................................................. 17 System Control Information ............................................................................................................................................. 21 Interfacing with the Atmel SAMA5D2, SAMA5D3 Series & SAM9 Series Processors ............................................... 21 Control Signals ............................................................................................................................................................ 22 Push-Button Control.................................................................................................................................................... 22 Control Sequences ..................................................................................................................................................... 23 Functional Description ..................................................................................................................................................... 24 2 I C Interface ................................................................................................................................................................ 24 Voltage Monitor and Interrupt ..................................................................................................................................... 24 Thermal Shutdown ...................................................................................................................................................... 24 Step-Down DC/DC Regulators........................................................................................................................................ 25 General Description .................................................................................................................................................... 25 100% Duty Cycle Operation ....................................................................................................................................... 25 Synchronous Rectification .......................................................................................................................................... 25 Soft-Start ..................................................................................................................................................................... 25 Compensation ............................................................................................................................................................. 25 OK and Output Fault Interrupt ................................................................................................................................. 26 PCB Layout Considerations ........................................................................................................................................ 26 Low-Noise, Low-Dropout Linear Regulators ................................................................................................................... 27 General Description .................................................................................................................................................... 27 Output Current Limit.................................................................................................................................................... 27 Compensation ............................................................................................................................................................. 27 Configuration Options ................................................................................................................................................. 27 OK and Output Fault Interrupt ................................................................................................................................. 27 PCB Layout Considerations ........................................................................................................................................ 28 Errata Info ........................................................................................................................................................................ 29 TQFN44-32 Package Outline and Dimensions ............................................................................................................... 30 Revision History .............................................................................................................................................................. 31 Data Sheet Rev. H, September 2019 Subject to change without notice 2 of 32 www.qorvo.com 2020 Qorvo US, Inc. All rights reserved.