#14 in Semiconductor products
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Reddit mentions of (12-Pcs) STMicroelectronics 3.3V, LD1117V33 Voltage Regulator, LD33V
Sentiment score: 2
Reddit mentions: 3
We found 3 Reddit mentions of (12-Pcs) STMicroelectronics 3.3V, LD1117V33 Voltage Regulator, LD33V. Here are the top ones.
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- STMicroelectronics (12pcs) LD1117V33 ( Shipped in Foam )
- Output Current: 800mA (1300mA max) with proper heat sink or heat-sinking
- Input Voltage: 4.3V Minimum, 15V Maximum
- Output: 3.3V
Features:
Specs:
| Number of items | 1 |
| Size | 12 PCS |
For the 24vac, you want a rectifier (which can be a simple diode and a small capacitor - google "half-wave rectifier" for designs) and a "buck converter"
For the 110vac, most USB chargers will work just fine for 5v output, and you can use just about any DC wall wart you might have lying around with the aforementioned buck converter.
You could also use linear regulators after the rectifier, but they are much less efficient than a buck converter.
Snoothing caps? Is that when you put a capacitor on output, and ground of a voltage regulator? Okay thank you. A while back i bought these voltage regulators, i took a quick look at the spec image they provide, and im still new at reading that stuff but i believe max is 800mA
(12-Pcs) STMicroelectronics 3.3V 950mA, LD1117V33 Voltage Regulator, LD33V https://www.amazon.com/dp/B01N09X4E8/ref=cm_sw_r_cp_apa_i_t.WPDbPV6QP8E
And i bought these heatsinks, and idk if they were a good choice.
50 Pcs 20x15x10mm Black Aluminum Heatsink for TO-220 Transistor https://www.amazon.com/dp/B00UBUOWWG/ref=cm_sw_r_cp_apa_i_EcXPDbP21NCGM
> cheap out and save a 3.3v regulator (those are expensive for some reason)
Order a handful of LD1117 from Aliexpress, you can get them for $.30/ea
They aren't even that horribly priced an Amazon with prime