ACE3555R

1CH ADJ Current-Limited Power Distribution Switch

VER 1.1

1

Description

The ACE3555R Power Distribution Switch features internal current limiting to prevent damage to host

devices due to faulty load conditions. The ACE3555R develops ultra-low on-resistance switch with

programmable current limiting to protect the power source from over current and short circuit conditions. It

integrates the over temperature protection and discharges the output capacitor during the shutdown. In

case the output is pulled higher than the input voltage under the shutdown, the ACE3555R can block the

current flowing from the output to the input. The ACE3555R is available in SOT-23-5 package.

Features

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Single-Channel Power Distribution Switch

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Programmable Current Limit in 0.08A~2A Output Current

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Enable polarity: Active High

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2.4V to 5.5V Supply Range

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Under-Voltage Lockout

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-40°C to +85°C Ambient Temperature Range

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Accurate Current Limit

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15µA Quiescent Current

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80mΩ MOSFET

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Thermal-Shutdown Protection

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Built-In Soft Start

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Reverse Current Blocking (No Body Diode)

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Available in SOT23-5 Package

Application

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Set-Top Boxes

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Wi-Fi Router/AP

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USB 3G Datacard/ USB Dongle

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ONT Boxes

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USB Ports and Hubs, Laptops, and Desktops

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Smartphone and PDA

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MiniPCI Accessories