MP2358

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2A, 23V, 370KHz Step-Down Converter



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Product Description

The MP2358 is a monolithic step down switch mode converter with a built in internal power MOSFET. It achieves 2A 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. Fault condition protection includes cycle­by­cycle current limiting and thermal shutdown. In shutdown mode the regulator draws 23μA of supply current. Programmable soft-start minimizes the inrush supply current and the output overshoot at initial startup. The MP2358 requires a minimum number of readily available standard external components.

Programmable

Product Features

  • 2A Output Current with QFN Package
  • 0.18Ω Internal Power MOSFET Switch
  • Stable with Low ESR Output Ceramic Capacitors
  • 93% Efficiency
  • 23μA Shutdown Mode
  • Fixed 370kHz Frequency
  • Thermal Shutdown
  • Cycle-by-Cycle Over Current Protection
  • Wide 4.75V to 23V Operating Input Range
  • Output Adjustable from 0.92V to 16V
  • Programmable Under Voltage Lockout
  • Available in QFN10 3x3mm and SOIC8 Packages

Parametrics

  • fsw (max) (kHz)370
  • Vin (min) (V)4.75
  • Vin (max) (V)23
  • Iout (max) (A)2
  • Isw Limit (typ) (A)3.4
  • Max Duty Cycle (%)0.9
  • Vfb (typ) (V)0.92
  • Iq (typ) (mA)1.1
  • Regulated Outputs1
  • Vout (max) (V)16
  • Vout (min) (V)0.92
  • GradeCatalog
  • 封装QFN-10 (3x3), SOIC-8
  • Common FeaturesExternal Soft Start