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The RT1988 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 RT1988 well suited for multi-port USB-C sink current applications. In addition, this part includes a 60V Absolute Maximum Rating (AMR), a 20A peak current 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 high capacitance loads. Short-circuit protection is provided during this period, while the integrated MOSFET provides a low forward voltage drop and high Safe Operating Area (SOA).The RT1988 is available in a VDFN-20TL 5.2x4 package and can operate over -40°C to 125°C junction temperature.

应用

  • USB-C/Thunderbolt Sink Power Delivery
  • Notebooks Computer Barrel Jack
  • Docking Stations
  • Power ORing Applications
主要规格
RT1988
Status Active
Number of Outputs 1
Vin (min) (V) 3.4
Vin (max) (V) 53
Ron (typ) (mOhm) 20
Iq (typ) (mA) 0.55
FLAG Indicator Yes
Iocp Adjustable No
Switch Type Load Switch
Features Adjustable Soft-Start;Enable Input;Inrush Current Limiting;OVP;Over-Temperature Protection;Reverse-Blocking;SCP
Package Type VDFN5.2x4-20T
Outline Dimension, Footprint, Drawing Download
关键特性
  • 8A Continuous/20A Peak Current Capability
  • Input Supply Voltage: 3.4V to 53V
  • 20mΩ (Typical) RON
  • Analog Ideal Diode Gate Control
    - Blocks Reverse Current
    - Avoids Switch Chatter
    - Enables 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
Datasheet
TitleVersionLast UpdateDownload
RT1988: 53V/8A Ideal Diode Protection SwitchInitial Release2025/08/14
Technical Documents
TitleItem TypeLast UpdateDownload
立锜全系列产品选择指南 [Jan., 2025] Selection Guide2025/08/20
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