High-Efficiency, 2A, 4.2 to 24V, 650kHz, Synchronous, DC Step-Down Converter with PG and Soft Start In SOT583

Upgrade to myMPS+


The MP2392 is a fully integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. The MP2392 offers a very compact solution that achieves 2A of continuous output current with excellent load and line regulation over a wide input range. The MP2392 uses synchronous mode operation for higher efficiency over the output current-load range.

Constant-on-time (COT) control operation provides very fast transient response, easy loop design, and very tight output regulation.

Full protection features include short-circuit protection (SCP), over-current protection (OCP), under-voltage protection (UVP), and thermal shutdown.

The MP2392 requires a minimal number of readily available, standard, external components and is available in a space-saving SOT583 package.


  • Wide 4.2V to 24V Operating Input Range
  • 110mΩ/45mΩ Low RDS(ON) Internal Power MOSFETs
  • 200µA Low IQ
  • High-Efficiency Synchronous Mode Operation
  • Power-Save Mode (PSM) at Light Load
  • Fast Load Transient Response
  • 650kHz Switching Frequency
  • Programmable Soft-Start Time
  • Power Good (PG) Indication
  • Output Over-Voltage Protection (OVP)
  • Over-Current Protection (OCP) and Hiccup
  • Pre-Bias Start-Up
  • Thermal Shutdown
  • Available in a SOT583 (1.6mmx2.1mm) Package


  • fsw (max) (kHz)650
  • Vin (min) (V)4.2
  • Vin (max) (V)24
  • Iout (max) (A)2
  • Max Duty Cycle (%)90.8
  • Vfb (typ) (V)0.805
  • Iq (typ) (mA)0.2
  • Regulated Outputs1
  • Vout (max) (V)13
  • Vout (min) (V)0.8
  • PackageSOT583
  • Control ModeCOT
  • Common FeaturesExternal Soft Start, Power Good, Synchronous Rectification