2A Synchronous Step-Down Converter with SS & PG

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Product Description

The MP2182 is a monolithic, step-down, switch-mode converter with built-in internal power MOSFETs. It achieves 2A continuous output current from a 2.5V-to-5.5V input voltage with excellent load and line regulation. The output voltage can be regulated to as low as 0.6V.

The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault protections include cycle-by-cycle current limiting and thermal shutdown.

The MP2182 is available in an ultra-small SOT583 package and requires a minimal number of readily available standard external components.

The MP2182 is ideal for a wide range of applications including high performance DSPs, wireless power, portable and mobile devices, and other low-power systems.

Product Features

  • Low IQ: 21μA
  • 1.2MHz Switching Frequency
  • EN forPowerSequencing
  • 1% FB Accuracy
  • Wide 2.5V-to-5.5V Operating Input Range
  • Output Adjustable from 0.6V
  • Up to 2A Output Current
  • 80mΩ and 40mΩ Internal Power MOSFET Switches
  • 100% Duty On
  • Output Discharge
  • Vo OVP
  • External Soft Start Control
  • Short-Circuit Protection with Hiccup Mode
  • Power Good
  • Available in a SOT583 Package


  • fsw (max) (kHz)1200
  • Vin (min) (V)2.5
  • Vin (max) (V)5.5
  • Iout (max) (A)2
  • Vfb (V)0.6
  • Iq (typ) (mA)21
  • GradeCatalog
  • PackageSOT583
  • Control ModeCOT
  • Common FeaturesExternal Soft Start, Light-Load Efficiency, Power Good, Synchronous Rectification
  • Special FeaturesOutput Discharge

Reference Materials