Li-ion cell to +5V converter

Discussion in 'General Electronics Chat' started by Vindhyachal Takniki, Jan 29, 2015.

  1. Vindhyachal Takniki

    Thread Starter Member

    Nov 3, 2014
    Application: To make 5V output from Li-ion cell (2.7V - 4.2V) with 500mA output max.
    Since it is battery powered so Iq should be very small & also board space is constraint.

    I have been looking at TPS61200. But its package is VSON.
    It is hard to solder by hand so I would prefer SOIC, MSOP or TSSOP package.
  2. cmartinez

    AAC Fanatic!

    Jan 17, 2007
    You may want to take a look at this. It's a power module already assembled and it's cheaper than the sum of its parts, if you were to buy them separately. It's based on the LM2577, which is a boost converter with excellent characteristics. The module produces 12V, but you can easily change its output voltage by changing a couple of SMT resistors. I know, because I've done it before.