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MP2188 - COT Synchronous Step Down Switchers

General Description

The MP2188 is a monolithic, step-down, switchmode dual converter with internal power MOSFETs.

to-5.5V input voltage with excellent load and line regulation.

The output voltages of two channels are 1.1V and 1.8V respectively.

Key Features

  • Wide 2.5V-to-5.5V Operating Input Range.
  • Fixed Output Voltages: 1.1V & 1.8V.
  • Adjustable Output Voltage from 0.8V by external FB Resistor.
  • 100% Duty Cycle in Dropout.
  • Up to 3A Output Current.
  • Low IQ: 80µA.
  • 60mΩ and 30mΩ Internal Power MOSFET Switches.
  • Default 1.2MHz Switching Frequency.
  • EN and Power-Good for Power Sequencing.
  • Cycle-by-Cycle Over-Current Protection.
  • Auto Discharge at Power-Off.

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The Future of Analog IC Technology DESCRIPTION The MP2188 is a monolithic, step-down, switchmode dual converter with internal power MOSFETs. It can achieve up to 3A continuous output current from a 2.5V–to-5.5V input voltage with excellent load and line regulation. The output voltages of two channels are 1.1V and 1.8V respectively. The constant-on-time control scheme provides fast transient response and eases loop stabilization. Fault condition protections include cycle-by-cycle current limiting and thermal shutdown. The MP2188 is available in small 2.2mmx2.6mm QFN-16 package and requires only a minimal number of readily available standard external components.