Home Projects Power 2.4V to 5V Step Up DC-DC Converter


2.4V to 5V Step Up DC-DC Converter
author: Rajkumar Sharma

This project is a step up DC to DC power converter able to convert 2.4V - 12V to 5Vdc.


This project has been designed around Texas Instrumentís LM2623 IC, The LM2623 is a high efficiency, general purpose step-up DC-DC switching regulator for battery powered and low input voltage systems. It accepts an input voltage between 2.4V to 12V volts and coverts it into 5V DC. Efficiencies up to 90% are achievable with the LM2623.


Good Efficiency over a very wide load range
Very low output voltage ripple
2.4V to 5V (Possible Input Supply up to 14V operating voltage)
5V output voltage (Other output voltages possible by changing R3 and R4)


Hand held instruments
Cameras, PDA, Cellphones
White LED driver


click for full resolution


Parts List

PCB Design

PCB top and bottom layer





120x90 spot



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