AP2301A/AP2311A

Document number: DS37743 Rev. 2 - 2

1 of 17

www.diodes.com

February 2018

© Diodes Incorporated

AP2301A/AP2311A

2.0A SINGLE CHANNEL CURRENT-LIMITED POWER SWITCH

Description

The AP2301A and AP2311A are single channel, current-limited,

integrated high-side power switches optimized for Universal Serial

Bus (USB) and other hot-swap applications. The family of devices

complies with USB standards and is available with both polarities of

Enable input.

The devices have fast short-circuit response time for improved overall

system robustness, and have integrated output discharge function to

ensure completely controlled discharging of the output voltage

capacitor. They provide a complete protection solution for applications

subject to heavy capacitive loads and the prospect of short circuit,

and offer reverse current blocking, over-current, over-temperature

and short-circuit protection, as well as controlled rise time and under-

voltage lockout functionality. 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 SO-8, MSOP-8, MSOP-8EP, U-DFN3030-

8 (Type E) and U-DFN2020-6 packages.

Features



Single Channel Current-Limited Power Switch



Output Discharge Function



Fast Short-Circuit Response Time: 2µs



2.5A Accurate Current Limiting



Reverse Current Blocking



70mΩ on-Resistance



Input Voltage Range: 2.7V to 5.5V



Built-in Soft-Start with 0.6ms Typical Rise Time



Over-Current and Thermal Protection



Fault Report (FLG) with Blanking Time (7ms Typ)



ESD Protection: 2kV HBM, 200V MM



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



SO-8, MSOP-8, MSOP-8EP, U-DFN3030-8 (Type E) and

U-DFN2020-6

: Available in “Green” Molding Compound (No Br,

Sb)



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green” Device (Note 3)



UL Recognized, File Number E322375



IEC60950-1 CB Scheme Certified

Pin Assignments

(Top View)

1

2

3

4

8

7

6

5

NC

OUT

FLG

OUT

GND

EN

IN

IN

SO-8

(Top View)

U-DFN3030-8 (Type E)

(Top View)

U-DFN2020-6

Applications



LCD TVs & Monitors



Set-Top-Boxes, Residential Gateways



Laptops,

Desktops,

Servers,

e-Readers,

Printers,

Docking

Stations, HUBs

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-

free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and

Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

1

2

3

4

8

7

6

5

OUT

FLG

OUT

GND

EN

IN

IN

( Top View )

NC

MSOP-8 /MSOP-8EP

Note: latter with exposed pad

(dotted line)