USB Type-C™ DFP 15V/3A/45W Out, Universal AC Input Reference Design


Design files


The PMP20533 power reference design provides up to 15 V/45 W over USB Type-C from a universal AC input range of 85 to 265 VAC for charger applications. The UCC24636 synchronous rectifier driver allows this design to provide 91% average efficiency.  The TPS25740A provides the interface between the flyback power supply and the Type-C cable. The PMP20533 has been certified as a power brick by the USB-IF (Product Test ID: 1020017).

  • 91% average efficiency
  • Standby (no load) power consumption is less than 30mW
  • High power density, greater than 12W per cubic inch
  • Compact form factor 45mm x 28mm (1.8" x 1.8" x 1.1")
  • Conducted emissions are below Class B levels
Output voltage options PMP20533.1
Vin (Min) (V) 85
Vin (Max) (V) 265
Vout (Nom) (V) 15
Iout (Max) (A) 3
Output Power (W) 45
Isolated/Non-Isolated Isolated
Input Type AC
Topology Flyback
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.


Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement

TIDRPU0.ZIP (1203 K)

Files used for 3D models or 2D drawings of IC components

TIDCD62.ZIP (825 K)

Design file that contains information on physical board layer of design PCB

TIDRPT9.PDF (1743 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

UCC24636Synchronous rectifier controller With Ultra-Low Standby current

Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)

UCC28740Constant-Voltage, Constant-Current (CVCC) Flyback controller with Secondary Side Regulation (SSR)

Data sheet: PDF | HTML

CSD17575Q330-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 3.2 mOhm

Data sheet: PDF | HTML
Shunt voltage references

TL431Adjustable precision shunt regulator

Data sheet: PDF | HTML
USB Type-C & USB Power Delivery ICs

TPS25740ATPS25740A USB Type-C™ Rev 1.2 and USB PD 2.0 Source Controller (5V/9V/15V)

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report USB Type-C ™ DFP 15V/3A/45W Out, Universal AC Input Reference Design (Rev. A) Aug. 28, 2018

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