2.5V-4.2V input to 3.3V output – 1A Buck Boost Converter using LTC3441

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This circuit can produce an output of 3.3V and 1A current continuously for a voltage input varying from 2.5V to 4.2V. The LTC3441 is a high efficient buck boost converter which plays a vital role in portable instrumentation because of its fixed frequency operation. This circuit produces the output from a single Li-ion battery. Multiple cells can also be used within the specified range of input voltage.

Features

  • Input(V): 2.5V DC to 4.2V DC
  • Output(V): 3.3V DC
  • Output load: 1A
  • PCB:21mmX12mm

Notes

Use copper with 2oz thickness for PCB fabrication

Parts List

PCB

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