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NCP4543 Key Features

  • Advanced Controller with Charge Pump
  • Integrated N-Channel MOSFET with ESD Protection
  • Soft-Start via Adjustable Slew Rate Control
  • Low On-Resistance
  • Input Voltage Range 0.5 V to 6 V
  • Low Standby Current
  • Load Bleed Function
  • No External ponents Required
  • Enable Pins with CMOS Input Levels
  • This is a Pb-Free Device

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NCP4543 Description

Pin 1 2 3 4, 5, 9−12, 14, 18, 19 6−8 13 15 16 17 Name DELAY VCC GND VIN VOUT BLEED EN POL SR Function Turn−on delay adjustment Supply voltage to controller (3.0 V − 5.5 V) Controller ground Drain of MOSFET (0.5 V − 6.0 V) Source of MOSFET connected to load.

NCP4543 Applications

  • Advanced Controller with Charge Pump
  • Integrated N−Channel MOSFET with ESD Protection