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A step-down converter module using a DCDC converter IC called LM2596, released by Texas Instruments (National Semiconductor), is being sold on Amazon. At first, I thought it was a genuine IC, but after experimenting, I discovered it was a fake. ■ Provided by Altium Try Altium, a circuit CAD https://bit.ly/ichiken_altium (30% off. Mainly aimed at businesses.) After registering and receiving a coupon ID, you can get a discount when you purchase from the online store (https://digitalsales.altium.com)! ◤SNS Links◢ You can buy Ichiken's electronic products and T-shirts here (associate link) https://amzn.to/3QxN8Av Official LINE (project proposals, etc.) https://lstep.app/pgx0aZX Official website (corporate inquiries, etc.) https://bit.ly/ichiken-ad Official blog https://ichiken-engineering.com/ Twitter / ichiken_make ★Equipment used (including Amazon associate link) 0:00 Unboxing and overview 1:13 Voltage measurement 3:15 Reading the datasheet 5:06 Looking at the output voltage ripple 6:56 Fake? 9:09 Efficiency and temperature measurement 10:27 Is it usable? ★Corporate projects, business-related inquiries: [email protected] music: Kevin MacLeod, The Big Beat 80's. Learn more about PR → https://bit.ly/ichiken-ad