Switching Regulator IC For Buck Converter Current Mode Control

Manufacturer's part number :


Manufacturer New Japan Radio

New Japan Radio

Description :

The NJW4154 is a buck converter with 40V/3A MOSFET. It corresponds to high oscillating frequency, and Low ESR Output Capacitor (MLCC) within wide input range from 4.5V to 40V.Therefore, the NJW4154 can realize downsizing of applications with a few external parts so that adopts current mode control. Also, it has a soft start function, external clock synchronization, over current protection and thermal shutdown circuit. It is suitable for supplying power to a Car Accessory, Office Automation Equipment, Industrial Instrument and so on.

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  • Current Mode Control
  • External Clock Synchronization
  • Wide Operating Voltage Range (4.5V to 40V)
  • Switching Current (4.5A min.)
  • PWM Control
  • Built-in Compensation Circuit
  • Correspond to Ceramic Capacitor (MLCC)
  • Oscillating Frequency (300kHz typ.(A ver.))
  • Soft Start Function (4ms typ.)
  • UVLO (Under Voltage Lockout)
  • Over Current Protection (Hiccup type)
  • Thermal Shutdown Protection
  • Power Good Function (NJW4154GM1 only)
  • Standby Function
  • Package Outline (NJW4154GM1:HSOP8-M1/NJW4154DL3:TO-252-5-L3)
Features Similar products
Switching frequency (kHz) 300  

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Max Input Voltage (V) 40  
Output Voltage (V) 5  
Typ. Active Current (µA) 5  
Output Capacitor Type Ceramic Capacitor  
Output Current (mA) 3000  
Operating Temperature (°C) -40 to +85  
Package TO-252-5