NJW4153 Series
Switching Regulator IC for Buck Converter Current Mode Control with 40V/1A MOSFET

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  • Description

    The NJW4153 is a buck converter with 40V/1A MOSFET. It corresponds to high oscillating frequency, and Low ESR Output Capacitor (MLCC) within wide input range from 4.6V to 40V.Therefore, the NJW4153 can realize downsizing of applications with a few external parts so that adopts current mode control.Also, it has a soft start function, an over current protection and a thermal shutdown circuit.It is suitable for power supply circuit of Micro Processor, DSP and so on that need fast transient response.

  • Spec
    Consumer Automotive
    Input Voltage Range 4.6 V to 40 V (45 V)
    Operating Temperature Range -40°C to 85°C -40°C to 125°C
    Supply Current Typ. 3900 µA Max. 4400 µA
    Standby Current 1 (max.) µA
    Output Voltage Range 0.8 V to 34 V
    Output Voltage Accuracy ± 1 % ± 2 %
    Output Current 1000 mA
    Oscillator Frequency 1MHz typ.(A ver.)
    Package SOT-89-5-2
    Control Current mode Control / PWM Control
    Function Standby Function
    Soft Start Function (4ms typ.)
    Over Current Protection (Hiccup type)
    Thermal Shutdown Protection
    Note Built-in Compensation Circuit
    UVLO (Under Voltage Lockout)
    Correspond to Ceramic Capacitor (MLCC)
    If you need datasheets of this
    product, please contact us.

    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
    • Related Links

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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.

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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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