Step-Up/Flyback Switching Regulator IC With Power Saving Pwm/Pfm Control

Manufacturer's part number :

NJU7601RB1

Manufacturer New Japan Radio

New Japan Radio

Description :

The NJU7601 is a low voltage operation high-speed switching regulator control IC for step-up and fly-back converter, with PWM/PFM switching control. It can improve a switching efficiency on light load with automatically changing between PWM and PFM controls, and incorporates a totem pole output, which can drive an external MOS-FET easily. The NJU7601 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 8-lead DMP and MSOP (TVSP) packages. It is suitable for battery powered applications.

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    Features

  • Automatic PWM/PFM 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
  • Timer Latch for Short Circuit Protection
  • C-MOS Technology
  • Package Outline (NJU7601M : DMP8 NJU7601RB1 : 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)