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The RT9706 is a cost-effective, low voltage, single N-Channel MOSFET high-side power switch, optimized for self-powered and bus-powered Universal Serial Bus (USB) applications. The RT9706 equipped with a charge pump circuitry to drive the internal MOSFET switch; the switch's low RDS(ON) 80mΩ, meets USB voltage drop requirements; and a flag output is available to indicate fault conditions to the local USB controller.
Additional features include soft-start to limit inrush current during plug-in, thermal shutdown to prevent catastrophic switch failure from high-current loads, under-voltage lockout (UVLO) to ensure that the device remains off unless there is a valid input voltage present, lower quiescent current as 25μA making this device ideal for portable battery operated equipment.
The RT9706 is available in SOT-23-5 package requiring minimum board space and smallest components.

Applications

  • USB Bus/Self Powered Hubs
  • USB Peripherals
  • ACPI Power Distribution
  • PC Card Hot Swap
  • Notebook, Motherboard PCs
  • Battery-Powered Equipment
  • Hot-Plug Power Supplies
  • Battery-Charger Circuits
Key Spec.
RT9706
Status NRND
Recommended Alternative  RT9742
Number of Outputs 1
Vin (min) (V) 2
Vin (max) (V) 5.5
Ron (typ) (mOhm) 100
Iq (typ) (mA) 0.025
Current Limit (typ) (A) 0.8
FLAG Indicator Yes
Iocp Adjustable No
Safety UL
Switch Type Power Switch
Features Cycle-by-Cycle Current Limit;Enable Input;SCP
Package Type SOT-25
Features
  • Compliant to USB Specifications
  • Built-In (Typically 80mΩ) N-Channel MOSFET
  • Output Can Be Forced Higher than Input (Off-State)
  • Low Supply Current :
      ♦ 25μA Typical at Switch On State
      ♦ 0.1μA Typical at Switch Off State
  • Guaranteed 500mA Continuous Load Current
  • Wide Input Voltage Ranges : 2V to 5.5V
  • Open-Drain Fault Flag Output
  • Hot Plug-In Application (Soft-Start)
  • 1.7V Typical Under-Voltage Lockout (UVLO)
  • Current Limiting Protection
  • Thermal Shutdown Protection
  • Reverse Current Flow Blocking (no body diode)
  • Smallest SOT-23-5 Package Minimizes Board Space
  • UL Approved-E219878
  • RoHS Compliant and 100% Lead (Pb)-Free
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