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The RT1989 provides an ideal diode reverse current blocking function with low forward voltage and an enable input for disconnection. The 3.4V to 53V input operating range and 8A continuous current rating make the RT1989 well suited for multi-port USB-C sinkcurrent applications. In addition, this part includes a 60V Absolute Maximum Rating (AMR), a 20A peakcurrent rating (up to 10ms), undervoltage-lockout,overvoltage protection, and over-temperature protection.An adjustable soft-start circuit sets the output voltage slew rate and manages inrush current into highcapacitance loads. Short-circuit protection is provided during this period, while the integrated MOSFETprovides a low forward voltage drop and high Safe Operating Area (SOA).The RT1989 is available in a VDFN-20TL 5.2x4 package and can operate over a junction temperature range of -40°C to 125°C.

Applications

  • USB-C/Thunderbolt Sink Power Delivery
  • Notebook Computer Barrel Jacks
  • Docking Stations
  • Power ORing Applications
Key Spec.
RT1989
Status Active
Number of Outputs 1
Vin (min) (V) 3.4
Vin (max) (V) 53
Ron (typ) (mOhm) 20
Iq (typ) (mA) 0.55
Current Limit (typ) (A) 15
FLAG Indicator Yes
Iocp Adjustable No
Switch Type Load Switch
Features Adjustable Soft-Start;Enable Input;OVP;SCP;UVP
Package Type VDFN5.2x4-20T
Outline Dimension, Footprint, Drawing Download
Features
  • 8A Continuous / 20A Peak Current Capability
  • Input Supply Voltage: 3.4V to 53V
  • 20mΩ RON (Typical)
  • Analog Ideal Diode Gate Control
    - Block Reverse Current
    - Avoid Switch Chatter
    - Enable Fast Power Swap
  • Programmable Soft-Start
  • Programmable Overvoltage Protection
  • Over-Temperature Protection
  • Start-Up Short-Circuit Protection
  • Compliance with IEC61000-4-2 and IEC61000-4-5 Standards
Please confirm with our distributor or sales representative for actual stock status.
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