NJW4133 Series
2.4MHz, 45V, 5A MOSFET Switching Regulator IC for Boost Converter

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  • Description

    The NJW4133 is a high speed oscillating frequency boost converter with 45V/5A MOSFET. Operating voltage range is wide input range from 3.0V to 40V, it can correspond to supply voltage drop such as cold crank. The NJW4133 has wide oscillating frequency range from 100kHz to 2.4MHz and external clock synchronization function. Therefore the NJW4133 can avoid interference with the AM radio frequency. Internal protection functions: UVLO, over voltage protection, over current protection and thermal shutdown circuit can protect IC when abnormal condition. The NJW4133 has wide coverage in consumer electronics and industrial application, because of features that are wide input operating voltage range and wide oscillating frequency range.

    * Automotive: AEC-Q100 grade 1 in progress


    • Power supply for LCD and OLED
    • Piezo Element drive
    • And other low/ middle range boost application

  • Spec
    Consumer Automotive
    Input Voltage Range 3 V to 40 V (45 V)
    Operating Temperature Range -40°C to 125°C
    Supply Current Typ. 2200 µA
    Standby Current 3 (max.) µA
    Output Voltage Range 3 V to 38 V
    Output Voltage Accuracy ± 1 %
    Output Current Switching Current 5000 mA
    Oscillator Frequency 100kHz to 2.4MHz
    Package HSOP8-M1
    Control Current Mode Control / PWM control
    Function Standby Function
    Soft Start Function (20ms typ.)
    Internal Protection Function (- Over Voltage Protection Function- Under Voltage Lockout Function(UVLO)- Over Current Protection Function(Hiccup)- Thermal Shutdown Function)
    Note Phase compensation can be adjustedwith an external circuit.
    Correspond to Ceramic Capacitor (MLCC)
    If you need datasheets of this
    product, please contact us.
    AEC-Q100 AEC-Q100 grade 1 in progress

    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
  • Technical
    • SPICE model download

      You can download the product's SPICE model. Login/registration to myNISD is required to download.

    • 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 &
    • 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.

Download Datasheet

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

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