1.8V Operate Pwm Control Step-Up / Flyback Switching Regulator IC

Manufacturer's part number :


Manufacturer New Japan Radio

New Japan Radio

Description :

The NJU7677 is a high-speed switching regulator control IC for PWM control step-up and fly-back converter that operates from 1.8V. It incorporates a totem pole driver output, which can directly drive an external MOS-FET. The NJU7677 also has a soft-start function, dead time control and timer latch for short circuit protection and their times are all adjustable with external parts. It is available in a small and thin 8-lead MSOP (TVSP) package. It is suitable for battery powered applications.

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  • PWM switching control
  • Operating Voltage (1.8V to 7V)
  • Wide Oscillator Range (300kHz to 1MHz)
  • Maximum Duty Cycle (90% typ.)
  • Quiescent Current (600µA typ.)
  • Soft-Start Function (Internal : 4ms typ. or adjustable)
  • Dead Time Control
  • Timer Latch for Short Circuit Protection
  • C-MOS Technology
  • Package Outline (NJU7677RB1 : MSOP8(TVSP8)*MEET JEDEC MO-187-DA / THIN TYPE)
Features Similar products
Switching frequency (kHz) 1000  

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Max Input Voltage (V) 7  
Typ. Active Current (µA) 0.6  
Output Current (mA) 12  
Operating Temperature (°C) -40 to +85  
Package DMP-8