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Ideal Diode Controller / Power ORing
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chrisricketts 4 years ago
Hi, Can anyone recommend an ideal diode controller or similar power ORing component available (high stock) in the SMT part library? I would have liked to use the TPS2115ADRB from TI but only the TPS2115APW is available. I need to be able to source 2A max. The use case is automatically switching between a 5V AC Wall Adapter and a 3.7V LiPo. Thanks in advance, Chris
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andyfierman 4 years ago
[https://www\.analog\.com/en/parametricsearch/11029\#/p165=\|2&p5497=2\|5](https://www.analog.com/en/parametricsearch/11029#/p165=|2&p5497=2|5) from which: [https://lcsc\.com/product\-detail/PMIC\-Supervisors\_Linear\-Tech\-LTC4413EDD\-PBF\_C107969\.html](https://lcsc.com/product-detail/PMIC-Supervisors_Linear-Tech-LTC4413EDD-PBF_C107969.html)
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chrisricketts 4 years ago
Hi @andyfierman, Thanks for your reply and recommendation. Those LTC441* ideal diodes look like they would do the job. Unfortunately they are all showing as out of stock on the SMT parts library ([https://jlcpcb.com/parts/componentSearch?searchTxt=LTC441).](https://jlcpcb.com/parts/componentSearch?searchTxt=LTC4413) I think I will make another post asking JLCPCB what happens if I order a design that uses an out of stock part. If it only slightly increases the lead time then its not too big of a deal. Thanks, Chris
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andyfierman 4 years ago
@chrisricketts, The link I posted: [https://lcsc\.com/product\-detail/PMIC\-Supervisors\_Linear\-Tech\-LTC4413EDD\-PBF\_C107969\.html](https://lcsc.com/product-detail/PMIC-Supervisors_Linear-Tech-LTC4413EDD-PBF_C107969.html) shows me a stock of 43: ![image.png](//image.easyeda.com/pullimage/GOML72r4NExN4oUnTMGnl33SBurpt39i1cF0E0Gw.png)
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chrisricketts 4 years ago
Yes but that part is not available in the SMT Parts library: [https://jlcpcb.com/parts](https://jlcpcb.com/parts) There are similar parts that are. Like this one: [https://lcsc\.com/product\-detail/PMIC\-Supervisors\_Linear\-Tech\-LTC4411ES5\-TRPBF\_C459901\.html](https://lcsc.com/product-detail/PMIC-Supervisors_Linear-Tech-LTC4411ES5-TRPBF_C459901.html) But the stock level for that similar parts is showing as 0 in the SMT Parts library and 6 on LCSC.
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andyfierman 4 years ago
Ah, sorry, I get the issue now.
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andyfierman 4 years ago
Found these cute little devices but they're not in stock either: [https://www.maximintegrated.com/en/products/analog/amplifiers/MAX40200.html/tb_tab2](https://www.maximintegrated.com/en/products/analog/amplifiers/MAX40200.html/tb_tab2) [https://www.maximintegrated.com/en/design/technical-documents/app-notes/6/6525.html](https://www.maximintegrated.com/en/design/technical-documents/app-notes/6/6525.html)
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chrisricketts 4 years ago
Hey @andyfierman, Those MAX40200 do look pretty neat! It's a shame they are not stocked by LCSC or on the ShenZen OPL /Seeed OPL ([https://www.seeedstudio.com/opl.html)](https://www.seeedstudio.com/opl.html) I have issued a stock inquiry for the LTC4411 so hopefully it will come back with some positive news. I'd have thought this would have been a common use case so I'm surprised there are not more components like the MAX40200 available. Thanks for your help in searching.
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andyfierman 4 years ago
For info (also not stocked by JLCPCB or LCSC): [https://www.onsemi.com/products/power-management/load-switches/fpf3040](https://www.onsemi.com/products/power-management/load-switches/fpf3040) [https://www.onsemi.com/products/power-management/load-switches/fpf3042](https://www.onsemi.com/products/power-management/load-switches/fpf3042)
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