TransphormHighest Performance, Highest Reliability GaN


Open Frame 140 W Dual USB-C PD Power Adapter Reference Design using Transphorm SuperGaN Technology

The TDADP-TPH-NXP-USBC-140W-RD is an open frame 140 W universal dual USB-C Power Delivery (PD) power adapter reference design. It meets USB PD 3.1 requirements (up to 28 V/5 A) for universal chargers supporting smartphones, laptops and other IoT devices. The power supply uses the NXP DCM/CrM PFC controller/LLC controller running up to 90 kHz;; Transphorm's TP65H150G4LSG (650 V, 150 mΩ GaN FET), TP65H300G4LSG (650 V, 240 mΩ GaN FET). This design enables high power density (~28 W/in3) and over 94 percent efficiency at full power.


  • USB-C PD 3.1
  • Power: 140W
  • DCM & CrM PFC/LLC Combo
  • Efficiency: greater than 94.0% @ full power and peak @ 94.5%
  • Input Voltage: Universal (90 Vac to 264 Vac)
  • < <950 mW no load power consumption
  • Features TP65H150G4LSG
  • Features TP65H300G4LSG
  • Features TEA2016
  • Easy-to-use platform to investigate GaN


  • Smart phones
  • Fast charging
  • Laptops and IoT


Typical Performance Curves

Output Power (W)

Output Power (W)

Back to top