USB Power Delivery

High power density chargers & adapters at competitive cost

Charging fast. Carrying light. Keeping the carbon footprint low.

The rising demand for chargers with a smaller form factor and ever-increasing power demands are current trends seen in the charger market. Typically end-consumer-orientated it is, in addition, cost-sensitive and high performance focused.

Live up to the latest requirements, avoid complexity, incompatibility, and shorten your time-to-market! With its broad portfolio of high-performing and high-quality USB-C PD solutions, Infineon helps you develop fast charging designs at competitive cost.

  • PWM Controller
  • High-voltage Switch
  • Rectification & Load Switch
  • SR & Protocol Control
  • Why Infineon

The controller plays a pivotal role for the wired communication capabilities of your charging design.
Choosing the right one matters!


Digital hybrid flyback controller - XDPS2201

XDPS2201 is a digital controller based on an asymmetric half-bridge flyback topology. It combines the simplicity of a traditional flyback with the performance of a resonant converter. Such a combination allows natural soft-switching to reduce switching losses enabling high switching frequency designs.

Design Guide: Design Guide Hybrid-flyback converter design with XDPS2201
Videos: XDP™ digital power XDPS2201 for charger design | USB-C fast charging solutions tailored to your needs

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Ultra-high density 65 W USB-PD/PPS demo design with XDPS2201

The DEMO_XDPS2201_65W1 is a 65 W USB-PD type C PPS charger demo board that uses Infineon XDPS2201 together with two CoolMOS™ superjunction MOSFETs in a half-bridge configuration. It demonstrates high power density and high efficiency with both fixed and PPS output in an ultra-compact form factor supporting up to 65 W.


Digital ZVS flyback controller - XDPS21081

Infineon’s XDPS21081 is a flyback controller IC with ZVS (zero-voltage switching) on the primary side to achieve high efficiency with simplified circuitry and economical switches. By driving an external low voltage switch to induce a negative current to discharge the main high voltage MOSFET, switching losses can be reduced further compared to traditional valley switching type of switching schemes. 

Design Guide: Design guide for adaptor with XDPS21081
Online Training: Fast charging solution with XDP™ digital power XDPS21081

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65 W USB-PD SMPS reference design with XDPS21081

The REF_XDPS21081_65W1 is a 65 W USB-PD type C charger reference design in a small form factor. The reference design has been developed to demonstrate the claimed performance while meeting various regulatory limits as well as allowing for small form factor designs.

Application Note: Reference board REF_XDPS21081_65W1
Videos: USB-C fast charging solutions tailored to your needs

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High-voltage superjunction MOSFETs

Choosing the suitable high-voltage MOSFET is also a key to a high-efficiency design. The 600 V CoolMOS™ PFD7 series and the 600 V & 700 V & 800 V CoolMOS™ P7 series offer cost-competitiveness with improved technology that reduces switching- and conduction losses. Also, an integrated gate-source Zener diode is featured for enhanced ESD protection and system reliability during operation. For more guidance on how to choose the right power switch, download the white paper.

White Paper: Recommendations and solutions for USB-C PD chargers

600 V CoolMOS™ PFD7

600 V CoolMOS™ PFD7

The latest 600 V CoolMOS™ PFD7 series sets a new benchmark in 600 V superjunction (SJ) technologies suitable for ultrahigh power density designs like chargers and adapters. This product family offers up to 1.17 % efficiency increase compared to the CoolMOS™ P7 technologies, which leads to a power density increase of 1.8 W. This outstanding improvement is achieved by lower conduction and charge/discharge losses, as well as reduced turn-off and gate-driving losses, enabled by pushing the cutting-edge CoolMOS™ technology to new limits.

Application Note: 600 V CoolMOS™ PFD7 - SJ MOSFET for high power density adapters and motor drives
Simulation Model: 600 V CoolMOS™ PFD7 PSpice

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600 V CoolMOS™ P7

600 V CoolMOS™ P7

The 600 V CoolMOS™ P7 SJ MOSFET family is Infineon’s most well-balanced CoolMOS™ technology in terms of ease of use and excellent efficiency, available in various RDS(on) classes and different packages. Compared to its predecessors, it offers highest efficiency and improved power density due to the significantly reduced gate charge (QG) and switching losses (EOSS levels), as well as optimized on-state resistance (RDS(on)).

Application Note 600 V CoolMOS™ P7 - Infineon’s most well balanced high voltage MOSFET technology

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700 V CoolMOS™ P7

The 700 V CoolMOS™ P7 offers a price competitive solution for consumer applications such as chargers and adapters in the power range from 10 W to 75 W. In other words, this product addresses the low-power SMPS market where it tackles common barriers through excellent performance and ease-of-use. The named power converters are typically based on flyback topologies. That is why the 700 V CoolMOS™ P7 is no longer a multi-purpose MOSFET, it is now a tailored technology optimized for flyback topologies.

In a SOT-223 package

The 700 V CoolMOS™ P7 is available in the cost-effective SOT-223 package, the perfect drop-in replacement as it fits to common DPAK properties (i.e. smaller footprint while DPAK pin-to-pin compatible) and reduces the overall bill of material (BOM). Improved form factors enable space savings without a significant disadvantage in thermals. The CoolMOS™ P7 in SOT-223 is Infineon’s contribution to the design of competitive products that match the increasing demand for compact, light and slim low power SMPS designs.

Application Note: MOSFET CoolMOS™ P7 700V
Product Brief:CoolMOS™ P7 in SOT-223 package

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800 V CoolMOS™ P7

800 V CoolMOS™ P7

With the 800 V CoolMOS™ P7 series, Infineon sets a benchmark in 800 V superjunction technologies and combines best-in-class performance with remarkable ease of use. This product family is a perfect fit for flyback-based consumer and industrial SMPS applications. The technology offers fully optimized key parameters to deliver outstanding efficiency as well as thermal performance.

Application Note: CoolMOS™ P7 - Optimizing power supplies to meet EMI requirements

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600 V/650 V CoolMOS™ C7

600 V/650 V CoolMOS™ C7

The 600 V and 650 V CoolMOS™ C7 superjunction MOSFET series are designed to achieve record level efficiency performance. They offer substantial efficiency benefits over the whole load range in hard-switching applications compared to previous series and competition. This is achieved by minimizing switching losses via ultralow levels of switching losses (EOSS) (approximately 50 percent reduction compared to the CoolMOS™ CP), reduced gate charge (QG), and a careful balance of other relevant product key parameters. The low EOSS and QG also enable operation at higher switching frequency and related size reduction of the circuit magnetics.

Design Guide: 600 V CoolMOS™ C7
Application Note: 650 V CoolMOS™ C7

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OptiMOS™ PD power MOSFETs

Low- and medium voltage MOSFETs: OptiMOS™ PD 25 – 150 V

OptiMOS™ PD is Infineon‘s new power MOSFET portfolio representing the best fit for USB-PD and fast charger designs, supporting short lead times as well as fast quote response times.

The logic level OptiMOS™ PD power MOSFETs in PQFN 3.3 x 3.3 and in SuperSO8 packages have been optimized for synchronous rectification in charger and adapter SMPS applications. Hence, they are highly suitable for addressing the requirements of USB PD charger and adapter designs. Small package sizes translate into shrunk form factors. Lower charges for reduced switching losses and an excellent price/performance ratio lead to system BOM cost improvements. The logic level drive provides a low gate threshold voltage (VGS(th)) allowing the MOSFETs to be driven from 4.5 V or directly from microcontrollers leading to a lower part count in the application. Low reverse-recovery charge (Qrr) and output charge (Qoss) yield low overshoot in synchronous rectification.

Product Brief: OptiMOS™ PD

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The two-chip solution providing excellent price-performance - EZ-PD™ PAG1 family

The solution comprises a primary start-up controller PAG1P, and a single-chip secondary-side controller PAG1S which integrates synchronous rectification control and USB-PD protocol control. In particular, the PAG1S is a programmable device offering great flexibility, allowing users to fine-tune the QR valley value at which the converter switches across line/load voltages. It enables system efficiency optimization without changing the external hardware components.

EZ-PD™ PAG1 family

PAG1S (in 10-SOIC package)

Secondary-side controller with integrated synchronous rectification control and USB-PD protocol control

  • Works with both primary-side and secondary-side controlled flyback designs
  • Integrates: Secondary-side regulation, synchronous rectifier (SR), charging port controller
  • Supports: quasi-resonant (QR) mode, critical conduction mode (CrCM), valley switching, discontinuous conduction mode (DCM), burst mode for light load operations
  • Switching frequency range of 20 kHZ to 150 kHZ
  • Higher efficiency across the line and load levels with independent CC/CV loop control
  • Supports USB PD 3.0 with PPS (USB-IF certified, TID:1475), QC4+ and legacy charging protocols: BC v1.2, AFC, and Apple charging
  • Integrates low side current sense amplifier and VBUS NFET gate drivers

Datasheet: PAG1S - CYPD3184, USB-PD Power Adapter SR Controller

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USB type-C power delivery controller: EZ-PD™ CCG3PA

The EZ-PD™ CCG3PA integrates USB-C transceiver along with the termination resistors, an integrated feedback control circuitry for voltage (VBUS regulation), a 30 V-tolerant regulator, VBUS to CC short protection, a high-voltage PFET gate driver and system level ESD protection. The CCG3PA is a fully programmable solution, that supports Power Delivery 3.0 Programmable Power Supply and Quick Charge 4.0 standards.

Key Features

  • Supports one USB type-C port and one type-A port
  • Supports USB Power Delivery 3.0 PPS
  • Supports the legacy protocols including Qualcomm QC
  • 4.0, Apple charging 2.4 A, AFC, BC 1.2 at no additional BOM cost
  • Programmable USB-C controller offering the flexibility to implement custom features and upgrade the firmware on the field
  • Integrates voltage regulation and current sense amplifier
  • Integrates 30 V-tolerant regulator
  • On-chip OVP, OCP, UVP, SCP and VBUS to CC short protection
  • Integrates a PFET VBUS gate driver
  • Integrated system level ESD on VBUS, CC and DP/DM
  • Available in 24-pin QFN (16 mm2), 16-pin SOIC (60 mm²) packages

Your Benefits

  • Integrates 30 V-tolerant regulator, including VBUS PFET gate drivers, OVP and OCP circuitry
  • Integrates voltage regulation and low-side current sense to support PD3.0 PPS and QC4.0
  • Supports PWM/I2C/GPIO interface to control VBUS
  • Integrates VBUS to CC short protection and ESD protection

Design Guide: USB Type-C Port Controller

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Why Infineon

Ease-of-use & Complexity Reduction

  • Ready-to-use reference designs
    A lineup of time-to-market shortening reference designs for different power ranges and form factor levels reduce design efforts and cost.
  • Complexity reduction
    A comprehensive offering of power and protocol controllers, high and low voltage switches and TVS diodes allow customers to source all components from one supplier.

High-efficiency Designs

  • High efficiency and power density designs
    Infineon’s solutions based on secondary-side controlled QR, Zero Voltage Switching (ZVS) control and hybrid flyback control enable smallest form factor designs with excellent efficiency levels.
  • High-efficiency switches
    Power switches with low RDS(on) and low parasitic capacitances help to improve the system efficiency
  • High-performance packaging
    The Kelvin-source engaged ThinPAK and PQFN packages minimize power losses, reduce the PCB space, and improve thermal dissipation capabilities.


  • Programmable USB-C power delivery controllers
    Infineon‘s USB-C power delivery power controllers integrate either PFET or NFET gate driver for VBUS and are compatible with the latest USB-C power delivery standard. Full programmability as prerequisite for highest flexibility and shortest time to market while supporting custom protocol additions, legacy protocols, and protocol updates.
  • Configurability and upgradeability
    Infineon’s power controllers XDP™ and EZ-PD™ PAG1 offer the flexibility to fix an existing issue or upgrade the firmware via Flash or OTP during development, shortening time to market

Secured Supply Chain

  • Capacity and security of supply
    Infineon has the largest installed in-house power semiconductor capacity with 12” wafer production for discretes to ensure maximum security of supply.
  • Flexibility
    Infineon offers dedicated supply chain programs to secure capacity and enable flexibility to demand fluctuations.