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MAX8743 Key Features

  • Ultra-High Efficiency
  • Accurate Current-Limit Option
  • Quick-PWM™ with 100ns Load-Step Response
  • 1% VOUT Accuracy over Line and Load
  • High Output Impedance in Shutdown
  • Dual Mode™ Fixed 1.8V/1.5V/Adj or 2.5V/Adj Outputs
  • Adjustable 1V to 5.5V Output Range
  • 2V to 28V Battery Input Range
  • 200kHz/300kHz/420kHz/540kHz Nominal Switching
  • Adjustable Overvoltage Protection

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MAX8743 Description

The MAX8743 is a dual pulse-width modulation (PWM) controller configured for step-down (buck) topologies that provides the high efficiency, excellent transient response, and high DC output accuracy necessary for stepping down high-voltage batteries to generate lowvoltage chipset and RAM power supplies in notebook puters. The CS_ inputs can be used with low-side sense resistors to provide accurate current limits or...