2A, 5.5V load switch with Programmable current limit, PG, slew rate control and output discharge

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Product Description

The MP5073 provides up to 2A load protection over a 0.5V to 5.5V voltage range. With the small RDSON in tiny package, MP5073 is a very high efficiency and space saving solution for notebooks, tablets, and other portable/battery-operated applications. With the soft start function, the MP5073 can avoid inrush current during circuit start up. MP5073 also provides programmable soft start time, output discharge functions, OCP and thermal shutdown features. The max load at the output (source) is current limited. This is accomplished by utilizing a sense FET topology. The magnitude of the current limit is controlled by an external resistor from the ILIM pin to ground. An internal charge pump drives the gate of the power device, allowing a very low on-resistance DMOS power FET of just 50mO. The MP5073 is available in a tiny 12-pin 2mmx2mm QFN package.

Product Features

  • Integrated 50m? Low RDSON FETs
  • Adjustable Start Up Slew Rate
  • Wide VIN Range from 0.5V to 5.5V
  • <1? Shutdown Current
  • Typical 2A Current Limit Range
  • Power Good Indicator
  • Output Discharge function
  • Enable Pin
  • <200ns Short-Circuit Protection Response Time
  • Thermal Protection
  • Small QFN-12 (2mmx2mm) Package for Space Saving


  • Enable3
  • Ilimit (A)2
  • Special FeaturesOutput Discharge, Power Good, Programmable Current Limit
  • Rds(on) (mΩ)50
  • GradeCatalog
  • Channels1
  • Iq (typ) (µA)180
  • Iout (max) (A)2
  • Vin (max) (V)5.5
  • Vin (min) (V)0.5