Step-Up/Flyback Switching Regulator IC With Constant Current Control

Manufacturer's part number :


Manufacturer New Japan Radio

New Japan Radio

Description :

The NJU7620 is a low voltage operation high-speed switching regulator control IC for step-up and flyback converter, with a constant current control. It incorporates a totem pole output, which can drive an external MOS-FET easily. It also incorporates error amplifier and current sense amplifier, which can allow the constant voltage/current control for output voltage. Therefore the NJU7620 is suitable for a LED driving and other CCCV applications up to 10W.The NJU7620 is available in a small and thin 8-lead MSOP(TVSP) package.

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  • PWM switching control
  • Constant Current Control
  • Operating Voltage (2.2V to 8V)
  • Wide Oscillator Range (300kHz to 1MHz)
  • Maximum Duty Cycle (90% typ.)
  • Quiescent Current (800µA typ.)
  • Soft-Start Function Internal (16ms typ. or adjustable)
  • Dead Time Control
  • C-MOS Technology
  • Package Outline (MSOP8(TVSP8)*MEET JEDEC MO-187-DA / THIN TYPE)
Features Similar products
Switching frequency (kHz) 1000  

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Max Input Voltage (V) 8  
Typ. Active Current (µA) 0.8  
Output Current (mA) 0.22  
Operating Temperature (°C) -40 to +85  
Package MSOP-8 (TVSP-8)