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Power Management

Step-Down switching regulator IC with Over Current Protection

  • PWM switching control
  • Pulse-by-pulse over current protection
  • Operating Voltage (2.2V to 8V)
  • Wide Oscillator Range (300kHz to 1MHz)
  • Maximum Duty Cycle (100%)
  • Quiescent Current (800µA typ.)
  • Soft-Start Function (Internal : 16ms typ. or adjustable)
  • Dead Time Control
  • C-MOS Technology
  • Package Outline (NJU7640RB1 : MSOP8(TVSP8)*MEET JEDEC MO-187-DA / THIN TYPE)
General Description
The NJU7640 is a low voltage operation high-speed switching regulator control IC for step-down converter, with a pulse-by-pulse over-current protection. The pulse-by-pulse over-current protection circuit can limit the over current in switching operation.It incorporates a totem pole output, which can drive an external MOS-FET easily. It also has a soft-start function and dead time control and their times are all adjustable with external parts.The NJU7640 is available in a small and thin 8-lead MSOP(TVSP) package.
Package Information
Part Number Package OutlinePinsMaterial Declaration (RoHS/Halogen)Terminal FinishWeight(mg) (Reference)Reflow solderingFlow solderingIron solderingPacking ConditionMSLSolder Foot Print
8Sn2Bi18YesYesYesNon dry pack1
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