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12V, 5V, 3A dual power supply based on the LM2596

Guest electrophile

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Guest electrophile

Hello, I'm trying to design a 12V, 5V, 3A dual power supply based on the LM2596 voltage regulator. Now I need about 2A on both the 12V and the 5V rails. This is supposed to power a SATA HDD and a raspberry pi board. I've attached a schematic here and I was hoping you folks could tell me if it would work? Also can I use the 5V rail to power a raspberry pi along with the HDD in parallel? Feel free to dismantle this circuit completely if necessary. The goal is to provide enough power for all devices the right way!

Any help would be really appreciated. Thanks.


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