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NJU7640 - Step-Down switching regulator IC

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.

Features

  • S.
  • 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.

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Full PDF Text Transcription

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NJU7640 Step-Down switching regulator IC with Over Current Protection ■ 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. ■ FEATURES ● PWM switching control ● Pulse-by-pulse over current protection ● Operating Voltage 2.
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