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The AP21410 and AP21510 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 and under-voltage lockout functionality.


Single USB port Power Switches


  • Single USB Port Power Switches
  • Over-Current and Thermal Protection
  • 0.4A Typical Current Limiting
  • Reverse Current Blocking
  • 95mΩ On-Resistance
  • Input Voltage Range: 2.7V to 5.5V
  • 0.4ms Typical Rise Time
  • Very Low Shutdown Current: 1μA (Max)
  • ESD Protection: 4KV HBM, 400V MM
  • Active Low (AP21410) or Active High (AP21510) Enable

Product Specifications

Product Parameters

Maximum Continuous Output Current 0.2 A
Maximum Current Limit 0.5 A
Enable Logic Active Low
Minimum Operating Voltage 2.7 V
Maximum Operating Voltage 5.5 V
Quiescent Current Typ 45 µA
RDS(ON) (VIN = 5V) Typ 90 mΩ
Output Discharge Yes
OCP Output Latch Off No
OCP Flag No
Operating Ambient Temperature Range -40 to 85 °C
UL Listed Yes
NEMKO IEC 60950-1 CB Yes

Related Content


Technical Documents

Evaluation Boards and User Guides

Recommended Soldering Techniques


Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
AP21410FM-7 Digi-Key Electronics 574 8/8/2020 Buy Now United States
AP21410FM-7 Mouser Electronics Inc. 2860 8/8/2020 Buy Now United States