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.



Description


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.

Features:

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)

Application:

Hand held instruments
Cameras, PDA, Cellphones
White LED driver


Schematic


click for full resolution

 

Parts List





PCB Design


PCB top and bottom layer

 

 

 




 
 

 
120x90 spot

 

 

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