MP28490

NRFND
5A, 30V, 420kHz Step-Down Converter with Power Good. Output Adjustable from 0.8V to 15V.


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Product Description

The MP28490 is a monolithic step-down switch mode converter with a built in internal power MOSFET. It achieves 5A 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 cycle-by-cycle current limiting and thermal shutdown. The MP28490 requires a minimum number of readily available standard external components and is available in an 8-pin SOIC package with exposed pad.

Programmable

Product Features

  • Wide 4.5V to 30V Operating Input Range
  • 5A Output Current
  • 50mO Internal Power MOSFET Switch
  • Power Good Indicator
  • Fixed 420kHz Frequency
  • Synchronizable up to 1.5MHz
  • Cycle-by-Cycle Over Current Protection with hiccup
  • Thermal Shutdown
  • Output Adjustable from 0.8V to 15V
  • Stable with Low ESR Output Ceramic Capacitors
  • Available in a Thermally Enhanced 8-Pin SOIC Package

Parametrics

  • fsw (max) (kHz)420
  • Vin (min) (V)4.5
  • Vin (max) (V)30
  • Iout (max) (A)5
  • Isw Limit (typ) (A)7.5
  • Max Duty Cycle (%)0.9
  • Vfb (typ) (V)0.808
  • Iq (typ) (mA)0.9
  • Regulated Outputs1
  • Vout (max) (V)15
  • Vout (min) (V)0.8
  • GradeCatalog
  • PackageSOIC-8E
  • Control ModeCurrent Mode
  • Common FeaturesPower Good
  • Special FeaturesExternal Frequency Sync