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NJW4119 Series
Buck Switching Regulator with Voltage Correction Circuit

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ECAD Model: Learn more
  • Standard
  • RoHS
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Description

The NJW4119 is a buck switching regulator with voltage correction circuit that delivers up to 2.4 A of output current. The voltage correction (cable drop compensation) raises the output voltage in proportion to the load current. This function corrects the voltage drop due to cable or writing board resistance. Unique features, such as soft-start, power-good output and error flag output make the NJW4119 ideal for portable devices charged with USB cable.

Applications

  • Car Infotainment
  • USB Chargers

Spec

Standard
Input Voltage Range 6.5 V to 40 V (45 V)
Operating Temperature Range -40°C to 125°C
Supply Current Typ. 3000 µA
Standby Current 10 (max.) µA
Output Voltage Range 5.1 V to 5.185 V
Output Voltage Accuracy ± 1 %
Output Current 2400 mA
Maximum Duty Cycle 100%
Package HTSSOP24-P1
Function Soft-Start (Adjustable with external capacitors)
Power-Good Output
Note Overcurrent Protection (Hiccup type)Adjustable limit value with external resistance
Undervoltage Lockout
Thermal Shutdown Circuit with Hysteresis
ON/OFF Control
Discharge at OFF-State

Download Datasheet

Protections / Functions

TSD ILX OCP OVP UVLO OVLO Reverse Shutdown Soft Start SSCG PGOOD Auto Discharge Anti-ringing Sequencing Max Duty Ext. Phase LED Adjust

Functional Description

TSD Thermal Shutdown Function
ILX LX Current Limit Function
OCP Overcurrent Protection
OVP Overvoltage Protection
UVLO Undervoltage Lockout Protection
OVLO Overvoltage Lockout Protection
Reverse Reverse Current Protection Circuit
Shutdown Shutdown Function
Soft Start Soft Start Function
SSCG Spread Spectrum Clock Generator Function
PGOOD Power Good Output
Auto Discharge Auto Discharge Function
Anti-ringing Anti-ringing Switch Function
Sequencing Start-up Sequencing Control
Max Duty Maximum Duty Cycle
Ext. Phase Externally Adjustable Phase Compensation
LED Adjust LED High-speed Dimming Control

Functional Description

TSD Thermal Shutdown Function
ILX LX Current Limit Function
OCP Overcurrent Protection
OVP Overvoltage Protection
UVLO Undervoltage Lockout Protection
OVLO Overvoltage Lockout Protection
Reverse Reverse Current Protection Circuit
Shutdown Shutdown Function
Soft Start Soft Start Function
SSCG Spread Spectrum Clock Generator Function
PGOOD Power Good Output
Auto Discharge Auto Discharge Function
Anti-ringing Anti-ringing Switch Function
Sequencing Start-up Sequencing Control
Max Duty Maximum Duty Cycle
Ext. Phase Externally Adjustable Phase Compensation
LED Adjust LED High-speed Dimming Control

Search for similar products under conditions below.

Category:DC/DC Switching Regulators

Topology Buck
VIN
min (V)		 6.5
VIN
max (V)		 40
VOUT
min (V)		 5.1
VOUT
max (V)		 5.185
IOUT
(mA)		 2400
ISS
(µA)		 3000

Technical Documents

  • Related Links

    • Prime Designer

      Online Design Tool

      Registration to myNISD is required to use some of the functions, such as simulations.

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Quality & Packages

Product Name Compatibility Package Marking Reliability
NJW4119VP1-510A
  • gradeConsumer
 HTSSOP24-P1 - NJW-2a-s-r
NJW4119VP1-5185A
  • gradeConsumer
 HTSSOP24-P1 - NJW-2a-s-r
  • Refer to the datasheets for the details on the product.
  • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

FAQ

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Buy / Contact

  • Purchase, Request for samples and documents
    Sales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
  • Available from 1 piece!
    Our electronic device products are available through our authorized online distributors.
  • Technical Support
NJW4119 Series