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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.


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


  • 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

Product Specifications

Product Parameters

Maximum Continuous Output Current 2 A
Maximum Current Limit 3.2 A
Enable Logic Active High, Active Low
Minimum Operating Voltage 2.7 V
Maximum Operating Voltage 5.5 V
Quiescent Current Typ 80 µA
RDS(ON) (VIN = 5V) Typ 50 mΩ
Output Discharge Yes
OCP Output Latch Off No
OCP Flag Yes
Operating Ambient Temperature Range -40 to 85 °C
UL Listed Yes
NEMKO IEC 60950-1 CB Yes

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Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
AP2281-1FMG-7 Mouser Electronics Inc. 1759 8/12/2020 Buy Now United States
AP2281-1FMG-7 Avnet 3000 8/11/2020 Buy Now United States
AP2281-1WG-7 Mouser Electronics Inc. 3065 8/12/2020 Buy Now United States
AP22811AM8-13 Mouser Electronics Inc. 2435 8/12/2020 Buy Now United States
AP22811AW5-7 Avnet EU 3000 8/12/2020 Buy Now Germany
AP22811AW5-7 Digi-Key Electronics 17450 8/12/2020 Buy Now United States
AP22811AW5-7 Farnell, An Avnet Company 3490 8/12/2020 Buy Now England
AP22811AW5-7 Mouser Electronics Inc. 9712 8/12/2020 Buy Now United States
AP22811AW5-7 RS Components 8320 8/11/2020 Buy Now England
AP22811AW5-7 RS Components Ltd. 8320 8/11/2020 Buy Now Japan
AP22811BM8-13 Mouser Electronics Inc. 2218 8/12/2020 Buy Now United States
AP22811BW5-7 Digi-Key Electronics 105 8/12/2020 Buy Now United States
AP22811BW5-7 Farnell, An Avnet Company 3247 8/12/2020 Buy Now England
AP22811BW5-7 Mouser Electronics Inc. 4454 8/12/2020 Buy Now United States
AP22811BW5-7 RS Components 5550 8/11/2020 Buy Now England
AP22811BW5-7 RS Components Ltd. 5550 8/11/2020 Buy Now Japan


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