2A, 16V, 800kHz, Synchronous Step-Down Converter with Ext.SS

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Product Description

The MP2234S is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a compact solution to achieve a 2A continuous output current with excellent load and line regulation over a wide input-supply range. The MP2234S has synchronous mode operation for higher efficiency over the output current load range. Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection (OCP) and thermal shut down (TSD). The MP2234S requires a minimal number of readily-available standard external components, and is available in a space-saving 8-pin TSOT23 package.


Product Features

  • Wide 4.5V-to-16V Operating Input Range
  • 140mO/60mO Low RDS(ON) Internal Power MOSFETs
  • High-Efficiency Synchronous Mode Operation
  • Fixed 800kHz Switching Frequency
  • Synchronizes from a 300kHz-to-2MHz External Clock
  • Power-Save Mode at Light Load
  • External Soft-Start
  • Over Current Protection and Hiccup
  • Thermal Shutdown
  • Output Adjustable from 0.804V
  • Available in a 8-pin TSOT-23 Package


  • fsw (max) (kHz)800
  • Vin (min) (V)4.5
  • Vin (max) (V)16
  • Iout (max) (A)2
  • Isw Limit (typ) (A)4
  • Max Duty Cycle (%)0.95
  • Vfb (typ) (V)0.804
  • Iq (typ) (mA)0.5
  • Regulated Outputs1
  • Vout (min) (V)0.8
  • GradeCatalog
  • PackageTSOT23-8
  • Control ModeCurrent Mode
  • Common FeaturesExternal Soft Start, Light-Load Efficiency, Synchronous Rectification
  • Special FeaturesExternal Frequency Sync