Trying to identify two SOT23 SMD codes, devices from mining PSU

[dicky96]

Hi guys
Does anyone know what these two components are?

First one is SOT23 marked LPS 6CB
The other one is SOT23-6 marked S43BbbA

TIA
Richard

[dicky96]

Re: Trying to identify two SOT23 SMD codes, devices from mining PSU

Anybody?

[vinceroger69]

Re: Trying to identify two SOT23 SMD codes, devices from mining PSU

Anybody?

i am usually good like yourself at finding the parts but these i cant find any info i wonder if its worth you also asking on the eevblog forum

[R_J]

Re: Trying to identify two SOT23 SMD codes, devices from mining PSU

sot23-6 = TOLL Microelectronic STI3474
sot23-3 seems to be LowPowerSemi LPS Part number might be the 6C or 6CB?

[lotas]

Re: Trying to identify two SOT23 SMD codes, devices from mining PSU

SOT23 marked LPS 6Cxxx - LP3986

[SMDFlea]

Re: Trying to identify two SOT23 SMD codes, devices from mining PSU

STI3474 No datasheet but this might help https://antenna-dvb-t2.ru/show_dcdc.php?id=430

[lotas]

Re: Trying to identify two SOT23 SMD codes, devices from mining PSU

"S43B" is device code - SWDP3143B

[SMDFlea]

Re: Trying to identify two SOT23 SMD codes, devices from mining PSU

"S43B" is device code - SWDP3143B

SWDP3143B has the same pinout,but 20V maximum voltage. There are no pictures of the SWDP3143B so can`t check how they write the xxx code ,the STI3474 has upper case and lower case letters for the xxx code

[lotas]

Re: Trying to identify two SOT23 SMD codes, devices from mining PSU

So everything is in the datasheet.
S43 - STI3474
S43B - SWDP3143B
But we can say that they are interchangeable.

[lotas]

Re: Trying to identify two SOT23 SMD codes, devices from mining PSU

Yes, and here is the marking on the STI3474, the same as that of the SWDP3143B.