2 Cell – Battery to 5V Step Up DC-DC Converter Using LM2623

TWO CELL-BATTERY TO 5V STEP UP DC-DC CONVERTER (1)

This project has been designed around Texas Instrument’s 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. Efficiency up to 90% are achievable with the LM2623.

DOC

Features:

  • Good Efficiency over a very wide load range
  • Very low output voltage ripple
  • 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

 

TWO CELL-BATTERY TO 5V STEP UP DC-DC CONVERTER (2) TWO CELL-BATTERY TO 5V STEP UP DC-DC CONVERTER (1)

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