NCP3232NMNTXG

The NCP3232N is a high current, high efficiency voltage−mode synchronous buck converter which operates from 4.5 V to 21 V input and generates output voltages down to 0.6 V at up to 15 A. The NCP3232N is a 500 kHz, high efficiency, high current PWM synchronous buck converter. It operates with a single supply voltage from 4.5 to 21 V and provide output current as high as 15 A. NCP3232N utilizes voltage mode with voltage feed−forward control to response instantly to Vin changes and provide for easier compensation over the supply range of the converter. The device also includes pre−bias startup capability to allow monotonic startup in the event of a pre−biased output condition. Protection features include overcurrent protection (OCP), output over and under voltage protection (OVP, UVP), and power good. The enable function is highly programmable to allow for adjustable startup voltages at higher input voltages. There is also an adjustable soft−start, and over−temperature/over−voltage comparator, and internal thermal shutdown. The NCP3232N incorporates an internal reference that allows output voltages as low as 0.6 V. The tolerance of the internal reference is guaranteed over the entire operating temperature range of the controller. The reference voltage is trimmed using a test configuration that accounts for error amplifier offset and bias currents.

Applications

• Cellular Base Stations
• ASIC, FPGA, DSP and CPU Core and I/O Supplies
• Telecom and Network Equipment
• Server and Storage System

Key features

• Wide Input Voltage Range from 4.5 V to 21 V
• 0.6 V Internal Reference Voltage
• 500 kHz Switching Frequency
• External Programmable Soft−Start
• Lossless Low−side FET Current Sensing
• Output Over−voltage Protection and Under−voltage Protection
• System Over−temperature Protection using a Thermistor or Sensor
• Hiccup Mode Operation for all Faults
• Pre−bias Start−up
• Adjustable Output Voltage
• Power Good Output
• Internal Over−temperature Protection
• These Devices are Pb−Free and are RoHS Compliant