Kinetic Technologies Launches USB VBUS Safety Management Current Limited Load Switch Supporting the Latest 28V Level of USB PD3.1 Extended Power Range (EPR) Systems

KTS1890 5V/3A Load Switch Completes Kinetic's Safety Management Kit of Products for 28V USB EPR

SAN JOSE, Calif.--()--Power management and video/audio interface leader, Kinetic Technologies, is expanding its USB-C Overvoltage Protection IC portfolio with the introduction of its new KTS1890 device. Together with its KTS1898 6ARMS VBUS ISINK load switch and its KTU1128 USB Type-C data line (CC & SBU) protector, these three devices provide the most robust and complete set of protection features on the market today.

Key applications for the KTS1890 include gaming and workstation notebooks, desktop PCs, docking stations, monitors, conferencing systems, gaming consoles, and any USB Type-C Dual Role Port design with PD 3.1 EPR 28V input.

The KTS1890 is a USB VBUS safety management load switch for 15W current-source output in systems with 28V EPR current sink input. The input operating range is 2.5V to 5.5V, but the output withstands up to 35VDC at the USB port. Current limit protection (CLP) is adjustable from 400mA to 4.0A. Low on-resistance minimizes heat and voltage droop. Soft-start (SS) limits inrush current. Reverse-current protection (RCP) acts as a 20mV “ideal diode” with fast recovery.

Karl Volk, System Applications Director at Kinetic Technologies, says, “The combination of our new KTS1890, together with our KTS1898 and KTU1128 parts, provides a chipset trio setting a new benchmark for protection at every 28V USB EPR port, ensuring the quality and operational integrity of your products.”

Additional integrated safety management for the KTS1890 device includes ultra-fast over-current protection (OCP), short-circuit protection (SCP) during and after soft-start, over-temperature protection (OTP), and integrated transient voltage suppression (TVS) for IEC industry standard ±30kV ESD and ±130V surge protection.

KTS1890 Product Features

  • 2.5V to 5.5V Operating Voltage Range at IN
  • 35VDC Abs. Max. Rating at OUT
  • Adjustable Current Limit Protection (CLP)
    • 400mA to 4.0A via RISET
  • 27mΩ typ. On-Resistance from IN to OUT
  • Soft-Start (SS) Limits Inrush Current
  • “Ideal Diode” Reverse Current Protection (RCP)
    • 20mV Forward Voltage and 15μs Fast Recovery
  • 5.8A, 150ns Over-Current Protection (OCP)
  • Short-Circuit Protection (SCP) during and after SS
  • Over-Temperature Protection (OTP)
  • Transient Voltage Suppression (TVS) at OUT
    • ±130V Surge Protection (IEC61000-4-5)
    • ±30kV ESD Contact Discharge (IEC61000-4-2)
    • ±30kV ESD Air Gap Discharge (IEC61000-4-2)
  • EN Enable Logic Input
  • FON Fast ON Logic Input for Fast Role Swap (FRS)
    • KTS1890A version only
  • FLT/Fault Open-Drain Logic Output
  • Hiccup Mode Auto-Retry after Faults
  • -40°C to 85°C Operating Temperature Range
  • 20-bump WLCSP 2.49 x 1.99mm (0.5mm pitch)

About Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power and protection semiconductors across consumer, communications, industrial, automotive and enterprise markets, to deliver protected solutions tolerant of real-world fault conditions. The company’s product sit “Behind Every Port™”, deliver solutions to not only provide, protect, regulate, and monitor power consumed by analog and digital semiconductors and other electronic loads, but to also switch, transform and protect high resolution video, audio, and data signals. Kinetic Technologies develops application-specific products that solve audio-video interface, protection, and power management needs across smartphones, tablets, and wearables, as well as serving a wide range of industrial, automotive and enterprise solutions. Kinetic Technologies, a Cayman Corporation, has R&D centers in Silicon Valley and Asia, with operations and logistics based in Asia. For more information, please visit

*The Kinetic Technologies logo is a trademark of Kinetic Technologies. All other brand and product names appearing in this document are the property of their respective holders.


Media contact: Robert Bendz
Phone: +1 -408-746-9000 x116


Media contact: Robert Bendz
Phone: +1 -408-746-9000 x116