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USB Power-Distribution Switches

  • 62mΩ Power Switch On Resistance
  • Wide Supply Voltage Range : 2.7V to 5.5V
  • Fix Current Limit Protection
  • Fast Over current Response : 2us (typ.)
  • Over-Temperature Protection
  • Fault Indication Output
  • Enable Input
  • Built-in Soft-Start
  • Reverse Input-Output Voltage Protection : 25mV (typ.)
  • UL Approved-File No. E328191
  • UL-CB Scheme IEC/EN62368-1 Certified
  • TUV IEC/EN62368-1 Certified

General Description
The APL3553 series of power switches are designed for USB applications. The 62mΩ N-channel MOSFET power switch satisfies the voltage drop requirements of USB specification. General Description Pin Configurations The protection features include current-limit protection, short-circuit protection, and over-temperature protection. The device limits the output current at current limit threshold level. When VOUT drops below VIN-1V, the devices limit the current to a lower and safe level. The over-temperature protection limits the junction temperature below 140oC in case of short circuit or over load conditions. Other features include a deglitched OCB output to indicate the fault condition and an enable input to enable or disable the device.

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