5V to 12V @400mA Boost Converter

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The circuit presented here is about a boost converter based on LM2698. It is a PWM boost converter from Texas instruments. LM2698 can also be used as a flyback converter. The current mode architecture is a special feature of LM2698, which provides superior line and load regulation. This circuit is capable of a supplying a output voltage of 12V for a input range of 4.5V to 5.5V.

Specifications

  • Input voltage: 4.5VDC to 5.5VDC
  • Output voltage: 12VDC
  • Output current: 0.4A
  • PCB:45mm X 30mm

Parts List

PCB

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