Online Support

Featured Products

Featured Applications


  • Overview
  • Resources
  • Where to buy

The NCT3230S is a highly efficient PWM DC-DC controller designed to drive two N-Channel MOSFETs in a synchronous rectified buck topology. The single output device integrates internal soft start, frequency compensation networks, output adjustment, monitoring and protection functions into a single, cost effective package. The device operates at a fixed frequency of 300 kHz and provides a simple, single feedback loop with voltage mode control and fast transient response. The NCT3230S also features over current under-voltage, and over=voltage protection. The output current is monitored by sensing the voltage drop across the RDS (ON) of the low side MOSFET to eliminate the need of a current sensing resistor. Under voltage and over voltage protection monitors the voltage on FB pin.



Data Sheet

Please click "Product Inquiry" to ask for technological documents


Enter the Email address you like to share*
Your email*
Your name*
Validate Code*
Part No. Check Disty Package Status Green/ RoHS Supply Voltage Input Voltage (VIN) Output Voltage Accuracy Frequency Features Control Voltage Memory Supported VTT Output offset (max) Sink/Source Current (max) VSET Current Limit Trigger Dropout (typ.) Output Current (typ.)
NCT3230S Check Disty SOP8 Mass Production Pb free & Halogen free 4.5V ~ 13.2V 1.5V ~ 13.2V 0.8V ~ VIN -2% ~ +2% 300KHz Internal Soft start, Programmable OCP, UVP & OVP                

User Feedback

Please rate our website
Validate Code*


Login myNuvoton

to stay informed of any changes to the documents you download.
If you don't want to login, just close this page and download directly.