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NCP81174 Datasheet 4/3/2-phase Synchronous Buck Controller

Manufacturer: onsemi

Overview: NCP81174 4/3/2-Phase Synchronous Buck Controller with Power Saving Mode and PWM VID Interface The NCP81174 is a general−purpose up to four−phase synchronous buck controller. It bines differential voltage sensing, differential phase current sensing, and PWM VID interface to provide accurate regulated power for the puter or graphic controllers. It can receive power saving mand (PSI) from processors and operates in single−phase diode emulation mode to obtain high efficiency in light load. Dual−edge multiphase PWM modulation ensures a fast transient response with minimum possible capacitors.

Key Features

  • Output Voltage up to 2.0 V with PWM VID Interface.
  • Support 1.8 V and 3.3 V VID interface.
  • Remote Differential Output Voltage Sense.
  • Differential Current Sense For Each Phase.
  • 200 kHz.
  • 1000 kHz Switching Frequency.
  • Power Saving Interface (PSI).
  • Power Good Output.
  • Thermally Compensated Current Monitoring.
  • Over Current Protection.
  • Fast Transient.

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