MP2357

Active
0.5A, 24V, 1.4MHz Step-Down Converter in a TSOT23-6


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Product Description

The MP2357 is a monolithic step-down switch mode converter with a built-in internal power MOSFET. It achieves a 0.5A peak 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 cycle-by-cycle current limiting and thermal shutdown. The MP2357 requires a minimum number of readily available standard external components. The MP2357 is available in TSOT23-6 and SOT23-6 packages.

Product Features

  • 0.5A Peak Output Current
  • 0.35Ω Internal Power MOSFET Switch
  • Stable with Low ESR Output Ceramic Capacitors
  • Up to 92% Efficiency
  • 0.1μA Shutdown Mode
  • Fixed 1.4MHz Frequency
  • Thermal Shutdown
  • Cycle-by-Cycle Over Current Protection
  • Wide 4.5V to 24V Operating Input Range
  • Output Adjustable from 0.81V to 15V
  • Available in a TSOT23-6 and SOT23-6 Packages

Parametrics

  • fsw (max) (kHz)1400
  • Vin (min) (V)4.5
  • Vin (max) (V)24
  • Iout (max) (A)0.5
  • Isw Limit (typ) (A)0.8
  • Max Duty Cycle (%)0.87
  • Vfb (typ) (V)0.81
  • Iq (typ) (mA)0.8
  • Regulated Outputs1
  • Vout (max) (V)15
  • Vout (min) (V)0.81
  • GradeCatalog
  • PackageSOT23-6, TSOT23-6
  • Control ModeCurrent Mode