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Power Management

MOSFET Drive Switching Regulator IC for Buck Converter(Wide Input Range Products)

Evaluation Board
datasheet NJW4161 EVA Boards
  • Pch MOSFET Driving (Driving Voltage V+-10V(typ.))
  • Wide Operating Voltage Range (3.1V to 40V)
  • PWM Control
  • Automatic PWM/PFM Control improves power efficiency at light load. (C ver.)
  • Wide Oscillating Frequency (50kHz to 1MHz)
  • Soft Start Function (15ms (typ.))
  • Over Current Protection (
    Hiccup type (A, C ver.)
    Latch type (B ver.))
  • Thermal Shutdown Protection
  • UVLO (Under Voltage Lockout)
  • Standby Function
  • Package Outline (NJW4161R: MSOP8(VSP8) *MEETJEDEC MO-187-DA, NJW4161D: DIP8)
General Description
The NJW4161 is a MOSFET Drive switching regulator IC for Buck Converter that operates wide input range from 3.1V to 40V. It can provide large current application because of built-in highly effective Pch MOSFET 10V drive circuit. There are two types, Hiccup type and Latch type, of over current protection version. It is suitable for logic voltage generation from high voltage that Car Accessory, Office Automation Equipment, Industrial Instrument and so on.
Design Simulation Models
pdf NJW4161 Application Simulator
Package Information
Part Number Package Outline Pins Material Declaration (RoHS/Halogen) Terminal Finish Weight(mg) (Reference) Reflow soldering Flow soldering Iron soldering Packing Condition MSL Solder Foot Print
NJW4161R download
8 Sn2Bi 21 Yes Yes Yes Non dry pack 1
NJW4161D download
8 Sn2Bi 510 - Yes Yes Non dry pack - -
Sample & Buy
Part Number Packages Status Packing Specification Sample   Buy   
NJW4161R-A MSOP8(VSP8) (Active)
NJW4161R-B MSOP8(VSP8) (Active)
NJW4161R-C MSOP8(VSP8) (Active)
NJW4161D-A DIP8 (Active)

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