Can anyone please identify this 6 pin SMD integrated circuit or what it does? I could not find it by the code written on it.

It is from a solar charger and I need to replace it.

photo of unknown device

  • 1
    \$\begingroup\$ +1 .... very good picture .... please add a picture that shows a wider area of the board \$\endgroup\$
    – jsotola
    Commented Nov 24, 2018 at 6:19
  • 12
    \$\begingroup\$ If you don't know what it is, how do you know you need to replace it? \$\endgroup\$
    – JRE
    Commented Nov 24, 2018 at 8:34
  • \$\begingroup\$ did you check polarity? it could be a littlefuse fast diode... try smaj6 \$\endgroup\$
    – ogeid
    Commented Nov 25, 2018 at 5:52

1 Answer 1


It is "AP5100" Datasheet. Which is Step down converter from Diodes Incorporated.

enter image description here


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