High Efficiency 1A, 21V, 2MHz Synchronous Step Down Converter in Ultra-thin

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Product Description

The MP2388 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in, internal power MOSFETs. It offers a very compact solution that achieves 1A of continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection (OCP) and thermal shutdown. The MP2388 requires a minimum number of readily available, standard, external components and is available in a space-saving QFN-8 (1.5mmx2.5mm) package.


Product Features

  • Wide 4.5V to 21V Operating Input Range
  • 1A Load Current
  • 110mO/50mO Low RDS(ON) Internal Power MOSFETs
  • Low Quiescent Current
  • High-Efficiency Synchronous Mode Operation
  • Fixed 2MHz Switching Frequency
  • AAM Power Save Mode
  • Internal Soft Start
  • Over-Current Protection (OCP) and Hiccup
  • Thermal Shutdown
  • Output Adjustable from 0.8V
  • Available in a QFN-8 (1.5mmx2.5mm) Package


  • fsw (max) (kHz)2000
  • Vin (min) (V)4.5
  • Vin (max) (V)21
  • Iout (max) (A)1
  • Vfb (V)0.798
  • Iq (typ) (mA)0.2
  • GradeCatalog
  • PackageQFN-8 (2.5x1.5)
  • Control ModeCurrent Mode
  • Common FeaturesLight-Load Efficiency, Synchronous Rectification

Reference Materials

Quality Policy, Certificates & Reliability Reports
All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.