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Low cost buck-boost (inverting) switching regulator?
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Topic: Low cost buck-boost (inverting) switching regulator? (Read 264 times)
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LooseJunkHater
Frequent Contributor
Posts: 288
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Low cost buck-boost (inverting) switching regulator?
«
on:
March 19, 2024, 06:50:41 pm »
I'm looking for a low-cost buck-boost (inverting) switching regulator with BOTH adjustable constant-voltage (CV) and constant-current (CC) control. It needs to work down to 4v (input voltage of ~5v) with a maximum current support of 3A.
I'm thinking of going with this (
https://www.aliexpress.com/item/1005006615276476.html
) or this (
https://www.aliexpress.com/item/1005004702899732.html
) product from AliExpress, but I'm wondering if anyone has any suggestions on cheaper products? Or maybe a schematic for a DIY version that I can make? Thanks.
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kevin.gibbs
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Posts: 34
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Re: Low cost buck-boost (inverting) switching regulator?
«
Reply #1 on:
March 26, 2024, 03:25:20 pm »
It seems you can't find anything cheaper than on Aliexpress. The first link seems suitable. The second one's description says a minimum voltage difference of 2V. It seems to be only a step-down module.
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