6A, 21V, 600kHz Step-Down Converter with Synchronizable Gate Driver

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Product Description

The MP38872 is a monolithic step-down switch mode converter with a built in high-side internal power MOSFET and a gate driver for a low-side external MOSFET. It achieves 6A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and reliable over-current protection. The MP38872 requires a minimum number of readily available standard external components and is available in a 14-pin QFN 3x4mm package with exposed pad.


Product Features

  • Wide 4.5V to 21V Operating Input Range
  • 6A Output Current
  • 45mO Internal Power MOSFET Switch
  • Power Good Indicator
  • Synchronizable Gate Driver Delivers up to 95% Efficiency
  • Fixed 600kHz Frequency
  • Synchronizable to >1MHz External Clock
  • Cycle-by-Cycle Over Current Protection
  • Thermal Shutdown
  • Output Adjustable from 0.8V to 15V
  • Stable with Low ESR Output Ceramic Capacitors
  • Available in a Thermally Enhanced 14-Pin QFN 3x4mm Package


  • fsw (max) (kHz)600
  • Vin (min) (V)4.5
  • Vin (max) (V)21
  • Iout (max) (A)6
  • Isw Limit (typ) (A)8
  • Max Duty Cycle (%)0.9
  • Vfb (V)0.808
  • Iq (typ) (mA)0.9
  • Regulated Outputs1
  • Vout (max) (V)15
  • Vout (min) (V)0.8
  • GradeCatalog
  • PackageQFN-14 (3x4)
  • Common FeaturesPower Good, Synchronous Rectification
  • Special FeaturesExternal Frequency Sync

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.