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Single Channel Power Distribution Load Switch

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The AP22811 is a single channel current-limited integrated high-side power switch 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 device has fast short-circuit response time for improved overall system robustness, and has an 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 6ms deglitch capability on the open-drain Flag output prevents false over-current reporting and does not require any external components.


  • Input Voltage Range: 2.7V ~ 5.5V
  • 50mΩ on-resistance
  • Built-in soft-start with 0.6ms typical rise time
  • Fault report (FLG) with blanking time (6ms typ)
  • ESD protection: 2KV HBM, 200V MM
  • Active low (B) or active high (A) enable
  • Protection:
    • Over Current with Auto Recovery
    • Short Circuit with Auto Recovery
    • Over temperature with Auto Recovery
    • Output Reverse Current / Voltage Protection
  • Thermally Efficient Low Profile Package
  • Totally Lead-Free & Fully RoHS compliant
  • Halogen and Antimony Free. “Green” Device
  • UL Recognized, File Number E322375
  • IEC60950-1 CB Scheme Certified


  • Notebook PCs, tablet PC, Set-top-boxes, Consumer Electronics and Telecom Systems

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Maximum Continuous Output Current (A) 2
(MAX) Maximum Current Limit Fixed (A) 3.2
Channels 1
Enable Logic Active Low
Minimum Operating Voltage (V) 2.7
Maximum Operating Voltage (V) 5.5
Quiescent Current Typ (µA) 80
RDS(ON) (VIN = 5V) Typ (mΩ) 50
Reverse Current Block Yes
Output Discharge Yes
(TYP) Output Rise Time mS 2.1
OCP Output Latch Off No
OCP Flag Yes
Power Good No
Operating Ambient Temperature Range (°C) -40 to 85
UL Certificate Yes

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Orderable Part Number Buy from Distributor / Contact Sales Request Samples


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Mouser Electronics Inc. 2144 1/26/2022 South America, North America, Asia, Europe, Middle East Buy Now
Request Sample


Authorized Distributor Quantity Inventory Date Countries/Regions Buy Online
Avnet 36000 1/26/2022 United States Buy Now
Digi-Key Electronics 6439 1/26/2022 Europe, Asia, North America Buy Now
Farnell, An Avnet Company 506 1/26/2022 England Buy Now
Mouser Electronics Inc. 551 1/26/2022 South America, North America, Asia, Europe, Middle East Buy Now
RS Components - Spain 7100 1/26/2022 Spain Contact Sales
RS Components - UK 7100 1/26/2022 England Buy Now
Rutronik GmbH 6000 1/26/2022 Germany Buy Now
Request Sample


Product Change Notices

PCN # Issue Date Implementation Date Subject
PCN-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site