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MP1482 - 18V Synchronous Rectified Step-Down Converter

Features

  • s.
  • 2A Output Current.
  • Wide 4.75V to 18V Operating Input Range.
  • Integrated 130mΩ Power MOSFET Switches.
  • Output Adjustable from 0.923V to 15V.
  • Up to 93% Efficiency.
  • Programmable Soft-Start.
  • Stable with Low ESR Ceramic Output Capacitors.
  • Fixed 340KHz Frequency.
  • Cycle-by-Cycle Over Current Protection.
  • Input Under Voltage Lockout SOP-8.
  • Functional Block Diagram FB 5 + 1.1V -- + 0.3V -- OVP RAMP.

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SMD Type Integrate Circuit 2A, 18V Synchronous Rectified Step-Down Converter MP1482 ■ Features • 2A Output Current • Wide 4.75V to 18V Operating Input Range • Integrated 130mΩ Power MOSFET Switches • Output Adjustable from 0.923V to 15V • Up to 93% Efficiency • Programmable Soft-Start • Stable with Low ESR Ceramic Output Capacitors • Fixed 340KHz Frequency • Cycle-by-Cycle Over Current Protection • Input Under Voltage Lockout SOP-8 ■ Functional Block Diagram FB 5 + 1.1V -- + 0.3V -- OVP RAMP OSCILLATOR CLK 100/340KHz SS 8 0.923V -+ + ERROR AMPLIFIER CURRENT SENSE AMPLIFIER + -- -- S Q RQ + CURRENT COMPARATOR 2 IN 5V 1 BS 3 SW BS IN SW GND 1 2 3 4 COMP 6 EN 7 2.5V + -- EN OK LOCKOUT COMPARATOR + 1.5V -- SHUTDOWN COMPARATOR 1.
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