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AT1601 Datasheet(PDF) 1 Page - Aimtron Technology

Part No. AT1601
Description  USB High-Side Power Switches with Flag
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Maker  AIMTRON [Aimtron Technology]
Homepage  http://www.aimtroncorporation.com/index.php
Logo AIMTRON - Aimtron Technology

AT1601 Datasheet(HTML) 1 Page - Aimtron Technology

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AT1601
Preliminary Product Information
USB High-Side Power Switches with Flag
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
WWW: http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email: service@aimtron.com.tw
1
Features
•Built-In (Typical 110m
Ω at 5.0V)
N-Channel MOSFET
•Output can be Forced Higher Than Input
(Off-State)
• Low Supply Current
100
µA Typical On-State Current
1
µA 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
Applications
•High-Side Power Protection Switch
•USB Power Management
•Notebook, Motherboard PCs
General Description
The AT1601 is an integrated high-side power
switch optimized for self-powered and bus-
powered Universal Serial Bus (USB) applications.
With built-in a charge pump circuitry to drive the
internal MOSFET switch, the switch’s low on-
resistance 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 high-
current 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 compatible with both 3.3V and 5V logic.
System Block
Aimtron reserves the right without notice to change this circuitry and specifications.


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