4.5 to 24V, 4A, Low IQ, Synchronous Buck Converter

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Product Description

The MP2384 is a fully integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter. The MP2384 offers a super-compact solution that achieves 4A of continuous output current over a wide input supply range. The MP2384 operates at high efficiency over a wide output current load range based on MPS’s proprietary switching loss reduction technique and internal low RDS(ON) power MOSFETs. Adaptive constant-on-time (COT) control mode provides fast transient response and eases loop stabilization. The DC auto-tune loop combined with the remote differential sense provides good load and line regulation. Full protection features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and thermal shutdown. The converter requires a minimal number of external components and is available in a QFN-11 (2mmx2mm) package.


Product Features

  • Wide 4.5V to 24V Operating Input Range
  • 105μA Low Quiescent Current
  • 4A Continuous Output Current
  • Adaptive COT Control for Fast Transient
  • DC Auto-Tune Loop
  • Low RDS(ON) Internal Power MOSFETs
  • Proprietary Switching Loss Reduction Technique
  • Power Good (PG) Indication
  • Fixed 700kHz Switching Frequency
  • Stable with POSCAP and Ceramic Capacitors
  • Internal Soft Start (SS)
  • Output Discharge
  • OCP, OVP, UVP, and Thermal Shutdown with Auto-Retry
  • Available in a QFN-11 (2mmx2mm) Package


  • fsw (max) (kHz)700
  • Vin (min) (V)4.5
  • Vin (max) (V)24
  • Iout (max) (A)4
  • Isw Limit (typ) (A)6.5
  • Vfb (typ) (V)0.6
  • Iq (typ) (mA)0.105
  • Regulated Outputs1
  • Vout (max) (V)13
  • Vout (min) (V)0.6
  • GradeCatalog
  • PackageQFN-11 (2x2)
  • Control ModeCOT
  • Common FeaturesPower Good, Synchronous Rectification
  • Special FeaturesOutput Discharge