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

Data Sheet


  • Switch Current Limit (5A min.)
  • Oscillating Frequency (100kHz to 2.4MHz)
  • Current Mode Control
  • Phase compensation can be adjusted
    with an external circuit.
  • Correspond to Ceramic Capacitor (MLCC)
  • External Clock Synchronization
  • Soft Start Function (20ms typ.)
  • Wide Operating Input Voltage Range (3V to 40V)
  • PWM control
  • Internal Protection Function (
    - Over Voltage Protection Function
    - Under Voltage Lockout Function(UVLO)
    - Over Current Protection Function(Hiccup)
    - Thermal Shutdown Function)
  • Standby Function
  • Package (HSOP8-M1)

General 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.


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

Design Simulation Models

Package Information

Part NumberPackage OutlinePLPPinsMaterial Declaration (RoHS/Halogen)Terminal FinishWeight(mg) (Reference)Reflow solderingFlow solderingIron solderingPacking ConditionMSLSolder Foot Print
NJW4133GM1HSOP8-M1-8-Pure Sn81Yes--Non dry pack1

Sample & Buy

Part NumberPackagesStatusPacking SpecificationSampleBuy
NJW4133GM1HSOP8-M1(Active)Contact UsSales Support