Diodes Incorporated
SO 8

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.


Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

Back to Inactve Datasheet Archive

AP2141A (Obsolete)

Inactive Datasheet Archive

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.


The AP2141A and AP2151A 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 is available with both polarities of Enable input. They offer current and thermal limiting 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-8EP, SOT25, and U-DFN2018-6 packages.  


  • Single USB Port Power Switches
  • Over-Current and Thermal Protection
  • 0.8A Accurate Current Limiting
  • Reverse Current Blocking
  • 95m On-Resistance
  • Input Voltage Range: 2.7V - 5.5V
  • 0.6ms Typical Rise Time
  • Very Low Shutdown Current: 1µA (max)
  • Fault Report (FLG) with Blanking Time (7ms typ)
  • ESD Protection: 4kV HBM, 400V MM
  • Active High (AP2151A) or Active Low (AP2141A) Enable
  • Ambient Temperature Range -40°C to +85°C
  • SOT25, SO-8, MSOP-8EP (Exposed Pad), and U-DFN2018-6: Available in “Green” Molding Compound (No Br, Sb)
  • 15kV ESD Protection per IEC 61000-4-2 (with external capacitance)


  • Consumer Electronics – LCD TVs & Monitors, Game Machines
  • Communications – Set-Top-Boxes, GPS Systems, Smartphones
  • Computing – Laptops, Desktops, Servers, Printers, Docking Stations, HUBs

Product Specifications

Product Parameters

Enable Logic Active Low
Maximum Continuous Output Current 0.5
Maximum Current Limit 1
Maximum Operating Voltage 5.5
Minimum Operating Voltage (V) 2.7
NEMKO IEC 60950-1 CB Yes
OCP Flag Yes
OCP Output Latch Off No
Operating Ambient Temperature Range (°C) -40 to 85
Output Discharge No
Quiescent Current Typ (mA) 45
RDS(ON) (VIN = 5V) Typ 95
UL Listed Yes

Technical Documents

Recommended Soldering Techniques



Related Application FAQs