ACT8946A

ACT8946A Advanced PMU for HiSilicon Processors FEATURES Three Step-Down DC/DC Converters Four Low-Dropout Linear Regulators Integrated ActivePath Charger I2CTM Serial Interface Advanced Enable/Disable Sequencing Controller Minimal External Components Tiny 5×5mm TQFN55-40 Package  0.75mm Package Height  Pb-Free and RoHS Compliant GENERAL DESCRIPTION The ACT8946A is a complete, cost effective, highlyefficient power management solution, optimized for the unique power, voltage-sequencing, and control requirements. It is ideal for a wide range of high performance portable handheld applications such as human-machine interfaces, control panels, smart grid infrastructures, network gateways, M2M systems, 2D barcode scanners, barcode printers, machine vision equipment, as well as home and commercial building automations, POS terminals, medical devices and white goods. This device integrates the complete battery charging and management system with seven power supply channels. 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 ActivePath system-power selection function. The three DC/DC converters utilize a high-efficiency, 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 ...