TPS2001D Single Channel, Current-Limited USB Power Distribution Switch |

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Single Channel, Current-Limited USB Power Distribution Switch



The TPS2001D power-distribution switch is intended for applications where heavy capacitive loads and short circuits are likely to be encountered, such as USB.

The TPS2001D limits the output current to a safe level by operating in a constant-current mode when the output load exceeds the current limit threshold. This provides a predictable fault current under all conditions. The fast overload response time eases the burden on the main 5-V supply to provide regulated power when the output is shorted. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.


  • Single Power Switch Family
  • Rated Current of 2 A
  • ±20% Accurate, Fixed, Constant Current Limit
  • Fast Overcurrent Response: 2 µs
  • Deglitched Fault Reporting
  • Output Discharge
  • Reverse Current Blocking
  • Built-In Soft Start
  • Ambient Temperature Range: –40°C to 85°C
  • UL Listed and CB-File No. E169910

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Part number Order Vin (Min) (V) Vin (Max) (V) Continuous current (Max) (A) Current limit (A) Enable Number of switches Rating
TPS2001D Order now 4.5     5.5     2     2.9     Active High     1     Catalog    
TPS2051C Order now 4.5     5.5     0.5     0.85     Active High     1     Catalog    
TPS2065C Order now 4.5     5.5     1     1.55     Active High     1     Catalog    
TPS2065D Order now 4.5     5.5     1     1.55     Active High     1     Catalog    
TPS2069D Order now 4.5     5.5     1.5     2.15     Active High     1     Catalog