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NCP81148 Datasheet Synchronous Buck Controller

Manufacturer: onsemi

Overview: NCP81148 Advance Information Synchronous Buck Controller with Auto Power Saving Mode and Built-In LDO NCP81148 is a dual synchronous buck controller that is optimized for converting the battery voltage or adaptor voltage into multiple power rails required in desktop and notebook system. NCP81148 consists of two buck switching controllers with fixed 5.0 V output on channel 2, 3.3 V on channel 1 and two on−board LDOs with three outputs: 5 V / 60 mA and 3.3 V or 12 V / 10 mA. NCP81148 supports high efficiency, fast transient response and provides power good signals. ON Semiconductor proprietary adaptive−ripple control enables seamless transition from CCM to DCM, where converter runs at reduced switching frequency with much higher efficiency at light load. The part operates with supply voltage ranging from 5.5 V to 28 V. NCP81148 is available in a 28−pin QFN package.

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Key Features

  • Wide Input Voltage Range: from 5.5 V to 28 V.
  • Built.
  • in 5 V / 60 mA LDO.
  • Built.
  • in selectable 3.3 V or 12 V / 10 mA LDO.
  • Three Selectable Fixed Frequency 300 KHz, 400 KHz or 600 KHz.
  • 180 Interleaved Operation Between the Two Channels in Continue.
  • Conduction.
  • Mode (CCM).
  • Selected Power.
  • Saving Mode/Forced PWM Mode.
  • Transient.
  • Response.
  • Enhancement (TRE) Control.
  • Input Supply V.

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