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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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ACT8945A 데이터시트(PDF) 1 Page - Qorvo, Inc |
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ACT8945A 데이터시트(HTML) 1 Page - Qorvo, Inc |
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1 / 46 page  ACT8945A Advanced PMU for Atmel SAMA5Dx Series & SAM9 Series Processors Data Sheet Rev. G, January 2020 | Subject to change without notice 1 of 46 www.qorvo.com © 2020 Qorvo US, Inc. All rights reserved. FEATURES • Three Step-Down DC/DC Converters • Four Low-Dropout Linear Regulators • Integrated ActivePath TM Charger • I 2CTM 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 ACT8945A is a complete, cost effective, highly- efficient ActivePMTM power management solution, optimized for the unique power, voltage- sequencing, and control requirements of the Atmel SAMA5D3 series: SAMA5D[31/33/34/35/36], and Atmel SAM9 series: SAM9G[15/25/35/45/46], SAM9X[25/35], SAM9M[10/11], SAM9N[11/12] processors. 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 ActivePath TM 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 TM 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 four low-dropout linear regulators are high- performance, low-noise regulators that supply up to 320mA of output current. The ACT8945A is available in a compact, Pb-Free and RoHS-compliant TQFN55-40 package TYPICAL APPLICATION DIAGRAM |
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