AP2101/AP2111

2A SINGLE CHANNEL CURRENT-LIMITED POWER

SWITCH

AP2101/AP2111 Rev. 1

1 of 14

NOVEMBER 2009

www.diodes.com

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Single USB port power switches with auto-discharge

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Short-circuit current and thermal protection

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2.45A accurate current limiting

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Fast transient response time: 5

μs

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90m

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Reverse Current Blocking

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Input voltage range: 2.7V – 5.5V

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0.6ms typical rise time

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Very low shutdown current: 1

μA (max)

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Fault report (FLG) with blanking time (7ms typ)

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ESD protection: 4KV HBM, 300V MM

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Active low (AP2101) or active high (AP2111) enable

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Ambient temperature range: -35°C to 85°C

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SOP-8L and MSOP-8L-EP (Exposed Pad): Available in

“Green” Molding Compound (No Br, Sb)

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Lead Free Finish / RoHS Compliant (Note 1)

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UL Recognized, File Number E322375 (pending)

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IEC60950-1 CB Scheme Certified

The AP2101 and AP2111 are integrated high-side power switches

optimized for Universal Serial Bus (USB) and other hot-swap

applications. The family of devices complies with USB 2.0 and

available with both polarities of Enable input.

They offer current

and thermal limiting and short circuit protection as well as

controlled rise time, under-voltage lockout and auto-discharge

functionalities. A 7ms deglitch capability on the open-drain Flag

output prevents false over-current reporting and does not require

any external components.

All devices are available in SOP-8L and MSOP-8L-EP packages.

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Consumer electronics – LCD TV & Monitor, Game Machines

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Communications – Set-Top-Box, GPS, Smartphone

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Computing – Laptop, Desktop, Servers, Printers, Docking Station, HUB

0.1uF

IN

GND

EN

OUT

ON

120uF

Power Supply

2.7V to 5.5V

0.1uF

OFF

FLG

Load

10k

10uF

AP2111 Enable Active High

Available Options

Part Number

Channel

Enable pin (EN)

Current limit

(typical)

Recommended maximum

continuous load current

AP2101

1

Active Low

2.45A

2.0A

AP2111

1

Active High

2.45A

2.0A

Features

Description

Applications

Typical Application Circuit