EEVblog Electronics Community Forum

Electronics => Repair => Topic started by: RoGeorge on March 04, 2024, 02:35:13 pm

Title: What is 4 93A33 ST 9038 (SO8) and 83TI BGG (10pins) SMD please?
Post by: RoGeorge on March 04, 2024, 02:35:13 pm
The ST one is SO8/SOIC-8, the small one has 10pins.  Found them in a ziplock bag.  The 3rd one is banana for scale, a 0.1inch DIL.  The SO8 one has pins 2-3 in short and from 1 to pins 2 or 3 seems to be a 0.6V diode.

Anybody know what these two ICs are, please?
Title: Re: What is 4 93A33 ST 9038 (SO8) and 83TI BGG (10pins) SMD please?
Post by: RoGeorge on March 04, 2024, 03:20:12 pm
The 10 pins small one most probably is a https://www.ti.com/lit/ds/symlink/tps62056.pdf (https://www.ti.com/lit/ds/symlink/tps62056.pdf)

Can't find the 8 pins one, but all 4 centers pins 2, 3, 6, 7 are tied together internally, with 1 cathode diode to pin 1-2,3,6,7 and another cathode diode from pin 8 to 2,3,6,7.
Title: Re: What is 4 93A33 ST 9038 (SO8) and 83TI BGG (10pins) SMD please?
Post by: RoGeorge on March 04, 2024, 03:46:01 pm
By the shorted together pins in the middle, the ST SO-8 most probably is https://www.st.com/resource/en/datasheet/l4931.pdf (https://www.st.com/resource/en/datasheet/l4931.pdf)
Title: Re: What is 4 93A33 ST 9038 (SO8) and 83TI BGG (10pins) SMD please?
Post by: fzabkar on March 04, 2024, 05:46:20 pm
https://www.ti.com/packaging/en/docs/partlookup.tsp?partmarking=bgg (https://www.ti.com/packaging/en/docs/partlookup.tsp?partmarking=bgg)

http://markingcodes.com/search/c/bgg (http://markingcodes.com/search/c/bgg)

https://www.aliexpress.com/item/32217263933.html (https://www.aliexpress.com/item/32217263933.html) (photo of L4931ABD50)

https://ickala.com/linear-regulators/7159-l4931abd33.html (https://ickala.com/linear-regulators/7159-l4931abd33.html) (photo of L4931ABD33)
https://cdn.ickala.com/8253-large_default/l4931abd33.webp (https://cdn.ickala.com/8253-large_default/l4931abd33.webp)