Newbie
Joined: 25/01/2023
Location: AustraliaPosts: 14
| Posted: 03:53am 07 Jun 2024 |
In light of the above undesirable behaviour observed in some 5V switching regulators, I feel it is appropriate to interject and point out a pretty thorough online analysis that may be of interest to those looking at ordering the 5V MINI-360 regulator for their WG Inverter build. Unsurprisingly, the tests reveal concerning behaviours seen in at least some of the MINI-360 regulators sold online:
Tested: MINI-360 (MP2307-based) “3A” Buck Converter Module
https://goughlui.com/2018/07/04/tested-mini-360-mp2307-based-3a-buck-converter-module/
Unfortunately, the inexpensive GAPTEC LMO78_05-0.5 recommended in the WG39 Rev7 Nano Controller BOM appears to be out of stock at the major distributors I checked (DigiKey, Mouser, Element14 and JLCPCB), however a suitable alternative rated at 1A output is currently in stock at DigiKey:
https://www.digikey.com.au/en/products/detail/monolithic-power-systems-inc/MEZD71201A-G/6823821
A thorough analysis of a 2A version of the above regulator has also been posted online:
Tested: MPS mEZD71202A-G 6.5-24V to 5V/2A DC-DC Power Supply Module
https://goughlui.com/2021/04/03/tested-mps-mezd71202a-g-6-5-24v-to-5v-2a-dc-dc-power-supply-module/