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Power Management

Buck Switching Regulator with Voltage Correction Circuit

Data Sheet

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  • Output Current (2.4A* guarantee)
  • Reference Output Voltage Accuracy (VO_SENSE±1%)
  • Output Voltage Correction Function (
    Vo+253mV (typ.): 0A to 2.0A @RADJ=10kΩ(Patent Pending))
  • Soft Start Function (Adjustable by external part)
  • External Synchronization Function (290kHz to 500kHz)
  • Error Flag Output (FAULT) (Auto Recovery Type)
  • Error Flag Output Delay for Hot Plug (1.4msec (typ.))
  • Power Good Function
  • V+ Short Detection
  • ON/OFF Control
  • Discharge Function at OFF state
  • Over Current Protection Circuit(OCP) (
    Hiccup Type, OCP value Adjustable by external part)
  • Short Circuit Protection
  • Under Voltage Lockout Circuit
  • Thermal Shutdown Circuit with Hysteresis
  • Package Outline (HTSSOP24)
General Description
The NJW4119 is a buck type switching regulator with voltage correction circuit that can supply up to 2.4A* current. The output voltage correction function (cable drop compensation) corrects the output voltage in proportion to the output current at the terminal device connected through a long cable. Moreover, it has various functions: Over Current Protection, Thermal Shutdown, Soft Start, Error Flag Output with delay circuit and Power Good. Therefore, the NJW4119 is suitable for portable equipment that are charged with USB cable.
Package Information
Part Number Package OutlinePinsMaterial Declaration (RoHS/Halogen)Terminal FinishWeight(mg) (Reference)Reflow solderingFlow solderingIron solderingPacking ConditionMSLSolder Foot Print
24Ni/Pd/Au83Yes--Dry pack 12a
Sample & Buy
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