AT1601 Datasheet | Aimtron Technology

Features - Built-In (Typical 110mΩ at 5.0V) N-Channel MOSFET - Output can be Forced Higher Than Input (Off-State) - Low Supply Current 100µA Typical On-State Current 1µA Typical Off-State Current - 1A minimum Continuous Load Current - 1.4A Typical Current Limit - Open-Drain Fault Flag Output - Hot Plug-In Application(Soft-Start) - 1.8V to 5.5V Operating Range - 1.7V Under-Voltage-Lockout(UVLO) - Thermal Shutdown Protection - SOP8 Package General Description The AT1601 is an integrated high-side power switch optimized for self-powered and buspowered Universal Serial Bus (USB) applications. With built-in a charge pump circuitry to drive the internal MOSFET switch, the switch’s low onresistance meets USB voltage drop requirements. A flag output is available to indicate fault conditions to the local USB controller. The AT1601 includes soft-start to limit inrush current during plug-in, 1.4A current limit to limit the output current to a safe level which meet the UL 25VA safety requirements, thermal shutdown to prevent catastrophic switch failure from highcurrent loads, under voltage lockout (UVLO) to ensure that the device remains off unless there is a valid input voltage present, and an enable input that is patible with both 3.3V and 5V logic. Applications - High-Side Power Protection Switch - USB Power Management - Notebook, Motherboard PCs System Block Aimtron reserves the right without notice to change this circuitry and specifications. 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 : http://.aimtron..tw Fax: 886-3-563-0879 Email: service@aimtron..tw 1 Preliminary Product Information USB High-Side Power Switches with Flag Ordering Information Part Number AT1601A AT1601A_GRE AT1601B AT1601B_GRE Package SOP8 SOP8,Green SOP8 SOP8,Green Marking AT1601AS AT1601AS,date code with one bottom line AT1601BS AT1601BS,date code with one bottom line EN Active High Active Low Pin Assignment Pin Description Pin No....