I bought DC/DC step-down converter modules on Amazon. LM2596 , a DC/DC converter IC sold by Texas Instruments (National Semiconductor), is used for the modules.
At first I thought the IC was genuine, but I found out it's fake while experimenting with the modules.
◤Contents◢
0:00 Opening Package and Introducing Product
1:08 Measuring Voltage
2:45 Checking Datasheet
4:17 Measuring Output Ripple Voltage
5:47 Fake ICs?
7:29 Measuring Efficiency and Temperature
8:34 Usability of Module
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