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Purple LT3042 ebay / aliexpress
Purple LT3042 ebay / aliexpress
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Old 14th June 2018, 06:12 PM   #11
Mooly is offline Mooly  United Kingdom
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Purple LT3042 ebay / aliexpress
I've no idea either whether the stuff is 100% genuine although its hard to see what the regs could be faked by. Opamps can be remarked but the reg is a special one off device.
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Old 19th June 2018, 11:12 PM   #12
marcelooms is offline marcelooms
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I bought one of these cheap purple LT3042 boards. It looks ok, but the resistors dont match up with the data sheet.
I resistor R4 is open..
Does anyone know how to hook these up?


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Originally Posted by Mooly View Post
The output voltage is set via a single resistor on these. The data sheet gives details, and also describes the PGFB (power good feedback) which may or may not be used.

http://www.analog.com/media/en/techn...www.linear.com
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Last edited by marcelooms; 19th June 2018 at 11:18 PM.
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Old 20th June 2018, 06:44 AM   #13
Mooly is offline Mooly  United Kingdom
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Purple LT3042 ebay / aliexpress
No idea tbh. The PCB vendor should provide basic details like that. You could perhaps figure it out by looking where each PCB connection point goes to and try and piece it together from the standard application circuit (data sheet examples).
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