ON Semiconductor — NCV898032: Automotive Grade Non-Synchronous Boost Controller

The NCV898032 is an adjustable output non-synchronous boost controller which drives an external N-channel MOSFET. The device uses peak current mode control with internal slope compensation. The IC incorporates an internal regulator that supplies charge to the gate driver. Protection features include internally-set soft-start, undervoltage lockout, cycle-by-cycle current limiting and thermal shutdown. Additional features include low quiescent current sleep mode and microprocessor compatible input pin.


  • Peak current mode control with internal slope compensation
  • 2MHz fixed frequency operation
  • Input under voltage lockout
  • <10μA quiescent current in sleep mode
  • Hiccup-mode overcurrent protection
  • 0.2V ±3% reference voltage for constant current loads
  • 3.2V to 40V input voltage range, 45V load dump
  • Internal soft-start
  • Cycle-by-cycle current limit protection
  • Thermal shutdown