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NCP4331 Datasheet Synchronous Buck Controller

Manufacturer: onsemi

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Datasheet Details

Part number NCP4331
Manufacturer onsemi
File Size 198.54 KB
Description Synchronous Buck Controller
Datasheet download datasheet NCP4331 Datasheet

Overview

NCP4331 Synchronous Buck Controller for High Efficiency Post Regulation The NCP4331 houses a dual MOSFET driver intended to be used as a companion chip in ac-dc or dc-dc multi-output post regulated power supplies.

Directly fed by the secondary ac signal, the device keeps power dissipation to the lowest while reducing external component count.

Further, the implementation of N-channel MOSFETs gives NCP4331-based applications a significant advantage in terms of efficiency.

Key Features

  • ăHigh Gate Drive Capability.
  • ăBootstrap for N-MOSFET High-Side Drive.
  • ăTwo Embedded Error Amplifiers Allowing Constant Current Constant Voltage (CCCV) Operation.
  • ă±1.5% Regulation Voltage Reference Over 0°C to 85°C Temperature Range.
  • ăProgrammable Soft-Start.
  • ăThermal Shutdown for Overtemperature Protection.
  • ăPWM Operation Synchronized to the Converter Frequency.
  • ăOver-Lap Management for Soft Switching.
  • ăInternal Regulator.

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