LD6935A333Highly Integration PD interface Controller

The LD6935A333 is a USB Power Delivery (USB PD) Type-C controller on the secondary side, which is designed for USB Type-C power delivery applications such as power adapters, wall chargers, car chargers, power banks, etc.
An 8 bits MCU is embedded to handle PD protocol, policy engine, and device policy manager with built-in Bi-phase Mark Coding (BMC) for USB PD communication.
The LD6935A333 has enhanced electrical characteristics. The 11 bits ADC can provide higher precision protection. The integrated analog cable compensation provides more linear compensation characteristics. In addition to the enhanced electrical features, the LD6935A333 integrates a blocking N-MOSFET and the MOS gate driver to minimize external components.
For minimizing external components, the LD6935A333 also integrates cap-free LDO and optimized BMC PD communications system, which simplifies the peripheral interface circuit. LD6935A333 is available in WSOP-8, the smaller 8-pin package would possess a higher power density. It has the advantages of small size and low BOM cost in PD applications.



  • USB PD Type-C Compliance
  • Programmable Type-C pull-up Rp
  • Integrates VCONN power and switch for reading E-marked cable
  • Highly Integration

    LD6935A333 Blocking N-MOSFET

    Cap-free LDO

    Programmable constant voltage control

    Low side current sense amplifier

  • Embedded MCU(with 16kbyte OTP and 256 + 256bytes) SRAM
  • 11 bits ADC for voltage and current higher precision monitoring
  • 11 bits DAC for voltage higher precision control
  • Quick Discharge Output Capacitor
  • Wide Operating Voltage Range: 4V~24V
  • Support Power Saving Mode in Standby
  • Programmable Over Voltage Protection (OVP)
  • Programmable Under Voltage Protection (UVP)
  • Programmable Over Current Protection (OCP)
  • Programmable Short Circuit Protection (SCP)
  • Over Temperature Protection (OTP)


  • USB Type-C Power Delivery applications such as power adapters, wall chargers, car chargers, power banks, etc.