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Power Management

Inverting Charge Pump IC

Evaluation Board
datasheet NJW4191 EVA Boards
  • Inverted Output (-17V max.)
  • Wide Operating Voltage Range (4.7V to 17V)
  • Maximum Output Current (55mA max.)
  • Correspond to Ceramic Capacitor(MLCC)
  • VOUT Programmable
  • ON/OFF Function
  • Built-in Oscillation Circuit (300kHz typ.)
  • External Synchronization Function divide-by-4 counter (A ver.)
  • Thermal Shutdown
  • Function Compatible to NJU7660/NJU7662 Doubler Circuit*
  • Package Outline (NJW4191R:MSOP8(VSP8)** NJW4191M:DMP8)
  • *The NJW4191 is not pin compatible to NJU7660/62.
  • **MEET JEDEC MO-187-DA
General Description
The NJW4191 is an inverting charge pump IC that operates wide 4.7V to 17V input range. With only the external part of an input/output capacitor and a charge pump capacitor, it can compose the inverting voltage circuit. It has a high current capability and a corresponding to small-sized capacitor compared with conventional product such as popular 7660/7662. For usability, it has ON/OFF function, Output Voltage Adjustable function and external synchronous function. The NJW4191 is suitable for the bias voltage of liquid crystal panels, CCD, sensors and operational amplifiers. There is the NJW4190 for doubler voltage output application.
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
NJW4191R download
8 Sn2Bi 21 Yes Yes Yes Non dry pack 1
NJW4191M download
8 Sn2Bi 95 Yes Yes Yes Non dry pack 1
Sample & Buy
Part Number Packages Status Packing Specification Sample
NJW4191R MSOP8(VSP8) (Active)
NJW4191M DMP8 (Active)