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NCT3230S

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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

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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                

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