MOSFET Drive Switching Regulator IC for Boost / Fly-back Converter

Manufacturer's part number :


Manufacturer New Japan Radio

New Japan Radio

Description :

The NJW4140 is a MOSFET Drive switching regulator IC for Boost / Fly-back Converter that operates wide input range from 3V to 40V. It can provide large current application because of built-in highly effective Nch MOSFET drive circuit. Built-in pulse-by-pulse current detecting type over current protection limits the output current at over load. It is suitable for boost/fly-back application such as Car Accessory, Office Automation Equipment, Industrial Instrument and so on.

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  • Operating Temperature -40ºC ≤ Ta ≤ +125ºC
  • Nch MOSFET Driving Driving Voltage V+
  • -5.3V (typ.)
  • Wide Operating Voltage Range 3V to 40V
  • PWM Control
  • Wide Oscillating Frequency 50kHto 1MH
  • Over Current Protection
  • UVLO (Under Voltage Lockout)
  • Standby Function
Features Similar products
Switching frequency (kHz) 1000  

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Max Input Voltage (V) 40  
Output Voltage (V) -0.3 to 6  
Typ. Active Current (µA) 1.4  
Output Capacitor Type Timing Capacitor  
Output Current (mA) 700  
Operating Temperature (°C) -40 to +125  
Package MSOP-8 (VSP-8)