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.
- Input(V): 2.5V DC to 4.2V DC
- Output(V): 3.3V DC
- Output load: 1A
2.5V-4.2V input to 3.3V output – 1A Buck Boost Converter using LTC3441 – [Link]